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173 matching tools
Showing 173/173 tools · All tools
Online Piano
Play piano with touch, computer keys or a MIDI keyboard. Listen to three classic study melodies, follow highlighted notes, record your playing and export locally.
Audio & Video
Klondike Solitaire
Play single-deck Klondike solitaire with draw-one or draw-three stock, tap-to-move cards, undo, legal-move hints and local resume. Build four foundations from ace to king.
Game Tools
2048
Slide and combine matching numbers on a classic 4×4 board. Play 2048 using arrows, WASD, swipe gestures or on-screen buttons, with undo, local saves and a best score on this device.
Game Tools
Sudoku
Play a uniquely solvable 9×9 Sudoku with notes, undo and clear hints. Choose a UTC daily puzzle or practice, save locally and print the puzzle with a separate answer page.
Game Tools
Minesweeper
Play classic Minesweeper with a protected first opening, touch-friendly flags, keyboard controls and custom boards. Pause anytime and continue from a local save.
Game Tools
Email Signature Generator
Build HTML and plain-text email signatures, map CSV team fields and export a ZIP locally. Preview without loading remote images by default.
Productivity & Habits
Barcode & Product Label Maker
Create Code 128, Code 39, EAN-13 and UPC-A labels with local CSV import, check-digit validation, physical print sizes and vector-bar PDF export.
Productivity & Habits
Seating Chart Maker
Import guests, arrange round or long tables, lock assignments and keep groups together. Check seating conflicts and export a map, guest list and table cards locally.
Productivity & Habits
Fuel & Trip Cost Calculator
Estimate multi-leg fuel or EV charging costs with explicit US and UK units, tolls, parking, passenger splitting and monthly trip counts. All prices are entered by you.
Calculators & Converters
One-Minute Reaction Challenge
An instant daily reflex game: hit pulse targets, avoid red decoys, and test your combos, accuracy, and reaction speed as the tempo rises for 60 seconds.
Game Tools
Cloud Star Catcher
An easygoing catch game: guide a cloud beneath falling stars, dodge raindrops, and build a combo to unlock Rainbow Time during a 75-second round.
Game Tools
JSON Formatter
Turn minified, messy, or hard-to-read JSON into a scannable hierarchy with error hints and field statistics.
Developer Tools
Code Formatter & Minifier
Format or minify JSON, SQL, HTML, CSS, JavaScript, TypeScript, and XML with language-aware parsing, syntax highlighting, auto-detection, dialect options, and local drafts.
Developer Tools
JSON Diff
Compare large JSON locally in the background with keyed object-array matching, three-way merging, JSON Schema validation, and a complete Patch workflow.
Developer Tools
JSONPath Query
Query large JSON locally with JSONPath, source location, table views, query history, and result exports.
Developer Tools
JSON Schema Validator
Validate JSON Schema locally with multiple drafts, multi-file references, issue location, sample generation, and bundle exports.
Developer Tools
JSON to Data Model
Generate TypeScript, Go, Java, and Python data models from JSON samples, JSON Schema, OpenAPI 3.x, or Swagger 2.0 while preserving required, nullable, enum, format, and nested structure semantics.
Developer Tools
OpenAPI / Swagger Inspector
Parse OpenAPI 3.0, 3.1, and Swagger 2.0 locally, explore endpoints, inspect conventions, resolve multi-file references, and generate examples and curl commands.
Developer Tools
WebSocket Inspector
Connect to ws/wss services in the browser, exchange text, JSON, and binary messages, and manage heartbeats, reconnects, filters, and session history.
Developer Tools
SQLite Playground
Create, open, query, and export SQLite databases locally with SQLite WebAssembly. Your data never leaves the browser.
Developer Tools
PostgreSQL Playground
Create, query, learn, and back up a local PostgreSQL database with PGlite WebAssembly, including schemas, JSONB, arrays, CTEs, and window functions.
Developer Tools
DuckDB Analytics Playground
Analyze CSV, TSV, JSON, NDJSON, and Parquet locally with DuckDB-Wasm, run analytical SQL, manage .duckdb databases, and learn DuckDB through interactive lessons.
Developer Tools
Data File Workbench
Open CSV, TSV, JSON, NDJSON, Excel, and Parquet locally, then profile fields, filter and sort rows, handle missing values, deduplicate, convert types, and export to multiple formats.
Data & Spreadsheets
Dynamic Ranking Chart Studio
Import CSV, Excel, or JSON to create animated horizontal rankings and line charts with smooth Top N transitions, avatars, branded themes, a timeline, and local high-resolution image and video export.
Data & Spreadsheets
CSV to JSON Converter
Open or paste CSV data, inspect headers and detected types, clean rows, and export formatted JSON without uploading files.
Data & Spreadsheets
JSON to CSV Converter
Open or paste JSON, flatten nested objects, inspect columns, clean records, and export CSV locally in your browser.
Data & Spreadsheets
Arcade Emulator
Run arcade ROMs in your browser with FBNeo and MAME 2003 Plus cores, touch controls, landscape fullscreen, saves, keyboards, and multiple gamepads.
Game Tools
FC Emulator
Run NES/FC games locally in your browser with ROM upload and URL loading, touch controls, landscape fullscreen, vibration, multiple gamepads, and two-player keyboard mapping.
Game Tools
Text Diff
Compare text or code locally with line, word, and character highlighting, split and unified views, change merging, and Patch export.
Developer Tools
Timestamp Converter
Detect second and millisecond timestamps, then switch quickly between local time and UTC.
Date & Time
World Clock
Track global city times and daylight in real time, with a customizable clock board, timezone search, meeting planner, date-change cues, and immersive fullscreen clocks.
Date & Time
Date Calculator
A complete date workspace for exact date differences, date arithmetic, custom business days, excluded dates, date facts, calendar ranges, and live countdowns.
Date & Time
Unit Converter
A complete converter for 20 categories including length, mass, temperature, area, volume, speed, data, pressure, and energy, with batch conversion, smart precision, comparison tables, favorites, and history.
Calculators & Converters
Comprehensive Calculator
A complete local calculation workspace with safe expressions, scientific functions, BigInt programmer operations, descriptive statistics, quadratic and linear-system solvers, and interactive graphing.
Calculators & Converters
Loan & Extra Payment Calculator
Calculate level-payment and equal-principal loans, model extra payments, stress-test rates, estimate affordability, inspect every payment, and export a CSV schedule.
Calculators & Converters
Personal Budget & Savings Planner
Compare planned and actual spending, project savings goals and an emergency fund, and explore debt avalanche and snowball plans with local, portable data.
Productivity & Habits
Pomodoro Focus Timer
A complete Pomodoro workspace with task planning, automatic cycles, immersive fullscreen, ambient sound, notifications, daily goals, and local focus stats.
Date & Time
Multi Timer
An all-in-one timing workspace with reliable background countdowns, a precise stopwatch, configurable interval cycles, parallel timers, fullscreen display, and completion alerts.
Date & Time
Habit Tracker
Build consistent routines with daily, weekday, custom-day, and weekly-frequency goals, plus quick check-ins, a calendar heatmap, streaks, and useful progress insights.
Productivity & Habits
Time Blocking Planner
Turn tasks into an actionable day with a draggable timeline, weekly planning, recurring blocks, an unscheduled inbox, focus timing, reusable templates, and review insights.
Productivity & Habits
Eisenhower Matrix
Separate important work from urgent noise with a visual matrix, today view, subtasks, recurring tasks, bulk organization, practical insights, and local backups.
Productivity & Habits
Goal & OKR Planner
Break long-term direction into outcomes you can execute and review with objectives, weighted key results, milestones, actions, health signals, check-ins, and a visual roadmap.
Productivity & Habits
Cron Expression Parser
Parse 5-field Unix cron and 6-field cron expressions with seconds, then show field meanings, upcoming run times, and risk hints.
Date & Time
Password Generator
Generate passwords by length, character type, and readability preferences for accounts, temporary secrets, and shared credentials.
Security & Privacy
ID Generator & Parser
Generate UUID v4/v7, ULID, NanoID, and Snowflake IDs in one place, with batch export, time ordering, custom Snowflake layouts, and field-level parsing.
Developer Tools
Faker Identity Generator
Use faker-js/faker locally in your browser to generate names, identity documents, contacts, addresses, jobs, online profiles, and financial test data, including U.S. states with no statewide sales tax.
Developer Tools
Structured Mock Data Generator
Design a single table or a relational dataset locally in your browser and generate localized data with faker-js/faker. Supports foreign keys, dependency ordering, nested fields, uniqueness, null probability, ranges, enums, templates, and sequences, plus relational SQL DDL, multi-sheet Excel, JSON, CSV, TSV, YAML, and XML exports.
Developer Tools
JWT Decoder
Split JWT Header, Payload, and Signature locally, explain common claims and expiry, and verify HMAC, RSA, and ECDSA signatures.
Security & Privacy
Codec Workbench
Encode and decode Base64, URL, HTML Entity, Unicode, Hex, and more in the browser. Useful for API tokens, data URLs, escaped text, and transport fields.
Encoding
QR Code Tool
Generate text, URL, WiFi, and contact QR codes locally in the browser, or upload an image to decode a QR code.
Encoding
Regex Tester
Debug regular expressions locally in the browser with flags, match highlighting, capture groups, named groups, and replacement preview.
Developer Tools
Color Tool
Enter HEX, RGB, HSL, or HSV colors to convert formats, generate ramps and harmonies, and check WCAG text contrast.
Text Processing
Universal Video Player
Play local video, direct media URLs, HLS/M3U8, common FLV streams, and torrents in your browser. Use local compatibility mode only when MKV, RMVB, or another legacy file cannot play directly.
Audio & Video
Audio & Video Workbench
Trim and compress video, turn clips into GIFs, extract audio, and convert audio formats locally in your browser with one consistent preview, settings, and export workflow.
Audio & Video
Online Video Cutter
Preview a video, set exact start and end times, and export MP4 or WebM with optional quality, resolution, and audio controls—without uploading the file.
Audio & Video
Online Video Compressor
Compress video with visual-quality, maximum-resolution, format, and audio controls. Compare source and output sizes before downloading, entirely in your browser.
Audio & Video
Video to GIF Converter
Choose up to 30 seconds of video, then control frame rate, width, and palette size to generate a looping GIF locally in your browser.
Audio & Video
Extract Audio from Video
Extract a video audio track locally as MP3, WAV, M4A, OGG, or FLAC, with optional bitrate, sample-rate, and channel controls.
Audio & Video
Online Audio Converter
Convert common audio files or the audio track in a video, with custom bitrate, sample rate, mono, and stereo controls plus instant result playback.
Audio & Video
Image Compressor
Compress PNG, JPG, and WebP images locally in the browser with quality, size, and format controls.
Image Tools
Image Base64 Converter
Convert images to Data URLs or raw Base64 locally in your browser, or paste Base64 to restore, preview, and download an image.
Image Tools
Image Watermark
Add text or logo watermarks locally in your browser with nine-point placement, tiling, opacity, rotation, and batch ZIP export.
Image Tools
Image Crop & Resize
Crop images by dragging locally in your browser, apply common ratios, rotate or flip, set exact dimensions, and export PNG, JPEG, or WebP.
Image Tools
Image EXIF & Metadata
Read EXIF, GPS, XMP, IPTC, and ICC data from regular images and HEIC / HEIF files locally, identify privacy risks, and batch-export clean images with metadata removed.
Image Tools
Batch Image Format Converter
Batch-convert HEIC / HEIF, JPG, PNG, WebP, and other images locally in your browser with quality, sizing, transparency handling, and ZIP downloads.
Image Tools
HEIC to JPG Converter
Decode HEIC and HEIF photos locally, control JPEG quality and dimensions, remove attached metadata, and download individual files or a ZIP.
Image Tools
Image Stitch & Long Image
Stitch images vertically, horizontally, or in a grid, or automatically detect scrolling screenshot overlaps and remove duplicate content locally in your browser with HEIC support, drag sorting, and flexible exports.
Image Tools
Markdown Preview
Switch quickly between input and preview for README files, announcements, article drafts, and technical docs.
Text Processing
MD2Card
Transform Markdown into polished cards for Xiaohongshu, WeChat, and Douyin with smart pagination, original themes, and local image export.
Text Processing
Content Workbench
Organize product value, audience, and calls to action into ready-to-use drafts for Xiaohongshu, Douyin, WeChat, and TikTok, then copy or download the complete content kit.
Text Processing
Network Diagnostics Toolbox
A complete network workbench for developers and operators: query DNS records, inspect HTTP headers and redirect chains, audit SSL/TLS certificates, and calculate IPv4/IPv6 CIDR subnets.
Network Tools
URL Encoder & Parser
Split long URLs into path, query parameters, and hash; sort, encode, decode, and copy parameters quickly.
Network Tools
Online Whiteboard
A lightweight blackboard and whiteboard that runs entirely in your browser, with pressure-sensitive ink, pens, a highlighter, an eraser, undo and redo, local autosave, and high-resolution PNG export.
Productivity & Habits
Local Reader Workbench
Read PDF, EPUB, TXT novels, and CBZ/ZIP comics without uploading or signing in, with a local library, reading progress, contents, bookmarks, read aloud, and flexible layouts.
Productivity & Habits
Online Archive Extractor
Browse archive folders, preview common files, and selectively extract ZIP, 7Z, RAR, TAR, GZIP, BZ2, XZ, and more without uploading anything.
File Tools
Online File Compressor
Select multiple files or a complete folder, preserve its structure, choose a compression level, and create ZIP or TAR.GZ locally without uploading anything.
File Tools
PDF Toolkit
Manage PDF pages locally in the browser with multi-file merging, page removal, rotation, drag sorting, and export.
PDF Tools
PDF Compressor
Compress PDF pages locally with quality and resolution presets, optional grayscale output, and a before-and-after size preview.
PDF Tools
PDF to Images Converter
Open a PDF, select the pages you need, preview them, and export page images locally without sending the document to a server.
PDF Tools
Images to PDF Converter
Add multiple images, arrange their order, choose page size and fit behavior, then create a PDF entirely in your browser.
PDF Tools
File Hash & Checksum
Generate MD5, SHA-1, SHA-256, SHA-512, CRC32, and BLAKE3 checksums for text or batches of files. Verify expected values and checksum manifests without uploading your data.
File Tools
Database ERD Visualizer
Inspect tables, columns, keys, indexes, and relationships from a local SQLite database or SQLite/PostgreSQL DDL, then export the diagram as SVG, PNG, Mermaid, or DBML.
Developer Tools
Excel & CSV Compare
Compare Excel or CSV versions by row number or one or more business-key columns. Find added, removed, and changed rows with normalization controls and local report export.
Data & Spreadsheets
Image & PDF OCR Workbench
Select pages, rotate, crop, enhance, and recognize text from PNG, JPEG, WebP, or scanned PDFs. Edit the result and export TXT or Markdown without uploading the document.
PDF Tools
Excel & CSV Merge / Join
Merge Excel, CSV, and TSV sheets with union, intersection, or strict headers, or run Left, Inner, and Full joins with conflict controls and local exports.
Data & Spreadsheets
Database Schema Diff
Compare two PostgreSQL/SQLite DDL sources or SQLite files locally. Review table, column, index, and foreign-key changes and generate a non-executing migration draft.
Developer Tools
Searchable PDF OCR
Recognize scanned PDFs or images locally, preserve searchable English and Chinese through Unicode text-only PDF layers, and verify extraction before export.
PDF Tools
Duplicate File Finder
Scan a selected directory, narrow candidates by size and samples, then confirm duplicates using full BLAKE3 and byte-for-byte comparison before exporting a cleanup report.
File Tools
PDF Redactor & Privacy Sanitizer
Draw regions or find sensitive text locally, permanently burn redactions into rasterized pages, and remove source text, forms, annotations, scripts, attachments, and metadata.
PDF Tools
PDF Fill & Sign
Read PDF AcroForm fields or place text, dates, checks, and signatures on any page. Use typed, drawn, or image signatures and optionally flatten the export.
PDF Tools
Folder Compare & Sync Planner
Compare two local folders by relative path, size, timestamps, and content. Identify additions, missing files, changes, and renames, then export a plan that is never executed automatically.
File Tools
HAR Performance & Privacy Analyzer
Parse HAR files locally to inspect requests, domains, timing, size, and failures. Detect tokens, cookies, sensitive headers, query parameters, and bodies, then export a sanitized copy.
Network Tools
PDF Compare & Visual Diff
Compare two PDF versions in your browser, match moved or inserted pages, and inspect text, layout, and rendered-page differences without uploading either document.
PDF Tools
Subtitle Editor & Converter
Edit SRT, WebVTT, ASS, SBV, LRC, and text subtitles locally with media preview, batch timing tools, quality checks, and UTF-8 export.
Audio & Video
SVG Optimizer & Security Sanitizer
Parse SVG as XML, remove scripts, event handlers, foreign content, and unsafe resources using explicit security profiles, then verify and export optimized files.
Image Tools
Email Header & Authentication Analyzer
Parse raw email headers locally, reconstruct delivery timing, review authentication alignment and suspicious clues, and create a sanitized copy for support sharing.
Security & Privacy
EML Viewer & Attachment Extractor
Parse EML messages locally, inspect MIME structure and headers, preview sanitized HTML with remote resources blocked, and export attachments or reports.
File Tools
PDF Metadata & Privacy Cleaner
Scan PDF metadata, XMP, attachments, annotations, forms, scripts, actions, and external references locally, then create a structurally rewritten and re-scanned copy.
PDF Tools
X.509 Certificate, CSR & Key Inspector
Inspect PEM or DER certificates, CSRs, public keys, and private-key structure locally. Review extensions, expiry, host names, CSR signatures, chains, and key matches.
Security & Privacy
Web Font Inspector & Converter
Open TTF, OTF, WOFF, and WOFF2 files locally to inspect names, metrics, tables, glyph coverage, variable axes, embedding flags, and create real WOFF/WOFF2 conversions.
Developer Tools
PDF Digital Signature & Integrity Inspector
Inspect PDF signatures, signed revisions, embedded certificates, algorithms, timestamps and modification indicators without uploading document content.
PDF Tools
SSH Key, Certificate & known_hosts Inspector
Inspect authorized_keys, known_hosts, RFC 4716, OpenSSH/PEM keys and OpenSSH certificates locally with fingerprints, validity and comparison.
Security & Privacy
Email Domain Security & Deliverability Checker
Query live SPF, DMARC, selected DKIM keys, MX, TLS-RPT, TLSA, CAA, BIMI and MTA-STS with bounded recursion.
Security & Privacy
PWA Manifest & App Icon Studio
Build manifest.webmanifest, PNG and ICO assets locally, preview maskable safe zones or inspect a public site through bounded SSRF-safe fetching.
Developer Tools
SQL Execution Plan Analyzer
Parse PostgreSQL, MySQL, SQLite, and DuckDB execution plans locally, normalize their operator trees, and review cardinality, loop, scan, filter, buffer, and spill clues.
Developer Tools
Security Headers & CSP Auditor
Audit public URL or pasted HTTP response headers for CSP, HSTS, cookies, CORS, privacy, isolation, and deprecated controls, with a transparent heuristic score.
Security & Privacy
Video Subtitle Burner & Track Muxer
Combine a local video with SRT, WebVTT, or ASS subtitles using FFmpeg WebAssembly. Preview timing, apply offsets, burn styled captions, or add a soft subtitle track.
Audio & Video
Technical SEO, robots.txt & Sitemap Inspector
Inspect a public URL or local source for titles, canonicals, robots directives, social metadata, JSON-LD, headings, links, image alt text, robots.txt matching, and sitemap limits.
Network Tools
Core Web Vitals & Lighthouse Analyzer
Analyze a public URL or imported Lighthouse reports, review LCP, INP and CLS thresholds, inspect lab opportunities and compare releases without mixing field and lab data.
Network Tools
WCAG Web Accessibility Auditor
Audit sanitized HTML, a public page or Lighthouse JSON with WCAG 2.2 mappings, inspect affected elements and complete a manual keyboard, screen-reader, zoom and media checklist.
Developer Tools
Dependency Vulnerability & SBOM Scanner
Parse JavaScript, Python, Rust and Go lockfiles locally, query exact versions against OSV, inspect affected ranges and export a CycloneDX 1.7 software bill of materials.
Security & Privacy
Schema.org & JSON-LD Studio
Extract JSON-LD from public pages or HTML, validate Schema.org graph structure and Google-oriented required fields, inspect entities and generate safely escaped JSON-LD templates.
Network Tools
Source Secret Scanner
Scan pasted text, files, folders and ZIP archives locally for high-confidence secret patterns, inspect masked evidence and export redacted reports or cleaned source copies.
Security & Privacy
JavaScript Bundle Analyzer
Analyze esbuild metafiles, webpack stats, source maps, Vite manifests or plain JavaScript assets locally, inspect module weight, compare baselines and enforce practical size budgets.
Developer Tools
GitHub Actions Security Auditor
Parse GitHub Actions YAML locally and flag broad permissions, mutable actions, expression injection, risky pull-request targets, self-hosted runner exposure and weak OIDC controls.
Security & Privacy
OAuth & OIDC Debugger
Fetch bounded public OpenID Connect discovery metadata and JWKS, review provider configuration, verify a pasted JWT locally, validate important claims and generate PKCE, state and nonce values.
Security & Privacy
Dockerfile & Compose Auditor
Audit Dockerfiles and Docker Compose YAML locally for mutable images, embedded secrets, root users, privileged services, dangerous mounts, host networking and reliability gaps.
Security & Privacy
Dependency License & NOTICE Auditor
Parse package manifests, lockfiles, CycloneDX and SPDX locally, normalize license expressions, apply allow, deny and review policies, and generate a third-party notice draft.
Developer Tools
Kubernetes Manifest Security Auditor
Parse rendered Kubernetes YAML locally and flag Pod Security Standards, RBAC, image, secret, resource, probe, network and ingress risks with a relationship inventory.
Security & Privacy
Terraform Plan Risk Analyzer
Analyze terraform show -json output locally, summarize resource actions, apply delete and replacement budgets, flag conservative cloud risks and compare a baseline plan.
Developer Tools
YAML Configuration Workbench
Parse YAML 1.2 configuration, explore node paths, locate duplicate keys and alias issues, convert JSON, and compare against a baseline path by path.
Developer Tools
.env Configuration Auditor
Compare key sets across local .env files, find missing, duplicate, empty, placeholder, naming and substitution risks, and generate an .env.example with no real values.
Security & Privacy
cURL Request Parser & Code Converter
Parse cURL URL, headers, cookies, body and form semantics locally, redact credentials, and generate normalized cURL, Fetch, Axios, Python, Go and PHP.
Developer Tools
XML / XPath Inspector
Inspect XML well-formedness and external-resource markers locally, browse stable node paths, manage namespaces, and run XPath 1.0 node-set or scalar queries.
Developer Tools
GraphQL Schema & Query Workbench
Use official GraphQL parsing and validation rules for Schema SDL and operations, explore types, generate a response skeleton and identify breaking schema changes.
Developer Tools
Webhook Signature Validator & Debugger
Debug webhook signatures with the exact raw body and browser Web Crypto, including replay windows, header formats, encodings and common body mutation problems.
Security & Privacy
Nginx Reverse Proxy Config Auditor
Audit Nginx server, location, upstream and proxy_pass configuration in the browser, including TLS/SNI, WebSocket, timeout and URI replacement risks.
Developer Tools
Protobuf / .proto Inspector
Parse common proto2, proto3 and Editions syntax locally, flag field number, reserved, map, oneof, enum and JSON-name risks, and compare revisions.
Developer Tools
CloudEvents Builder & Validator
Create and inspect CloudEvents locally, validate required attributes and extensions, convert between JSON and HTTP bindings, and export safe handoff artifacts.
Developer Tools
Avro Schema Compatibility Inspector
Inspect Avro schemas locally with avsc, compare schema evolution in both directions, calculate canonical fingerprints, and encode or decode sample records.
Developer Tools
AsyncAPI Contract Workbench
Inspect AsyncAPI 2.x and 3.x documents locally, summarize servers, channels, operations and messages, visualize event flows, and draft a 3.1 migration.
Developer Tools
OpenTelemetry Trace Viewer
Normalize trace exports locally, diagnose span relationships and timing, visualize critical paths, compare captures, and export a redacted trace.
Network Tools
OpenTelemetry Log Explorer
Normalize OpenTelemetry and common structured logs, filter errors and services, inspect fields, cluster messages, correlate traces, and export sanitized results.
Network Tools
Prometheus / OpenMetrics Workbench
Parse Prometheus text, OpenMetrics and OTLP Metrics locally, then inspect metric families, histograms, label cardinality, PromQL and alerting rules.
Network Tools
Trace Context & Baggage Debugger
Parse traceparent, tracestate and baggage, recognize B3 and Jaeger context, validate formats, simulate multiple hops, and generate injection code.
Network Tools
SLO & Error Budget Studio
Model availability, latency or time-slice SLIs, calculate burn rates, import observations, simulate incidents, and draft Prometheus and OpenSLO output.
Network Tools
OpenTelemetry Collector Config Auditor
Parse OpenTelemetry Collector YAML locally, validate receiver, processor, exporter, connector and extension references and order, then export a sanitized topology and report.
Network Tools
Alertmanager Routing & Inhibition Simulator
Parse Alertmanager configuration and alert labels locally, simulate nested routes, continue behavior, grouping, silences and inhibition, and safely export a routing matrix.
Network Tools
Grafana Dashboard Inspector & Migration Tool
Recognize Grafana Classic, V1 Resource and V2 Resource locally, inventory panels, datasources and queries, detect common issues, compare versions and generate a migration draft.
Network Tools
Kubernetes Runtime Diagnostics Analyzer
Normalize a Kubernetes runtime support bundle locally, identify CrashLoopBackOff, ImagePullBackOff, OOMKilled, FailedScheduling, probe and dependency failures, then generate a timeline and read-only commands.
Network Tools
Kubernetes RBAC Permission Simulator
Analyze Roles, ClusterRoles, RoleBindings and ClusterRoleBindings locally, simulate a concrete subject request, flag privilege risks, and draft a minimal role.
Security & Privacy
Kubernetes NetworkPolicy Connectivity Simulator
Evaluate NetworkPolicy v1 selectors, isolation, peers and ports locally, map Services to Pods, and generate a directional connectivity matrix.
Network Tools
Helm Values & Schema Workbench
Combine values.yaml, an environment override and Helm set flags locally, validate values.schema.json, review dependencies, and export effective or redacted values.
Developer Tools
Kubernetes Resource & Scheduling Planner
Calculate requests across app, init and restartable sidecar containers, apply LimitRange defaults, filter Nodes, place replicas, and forecast ResourceQuota usage.
Network Tools
Kubernetes HPA Calculator & Simulator
Calculate CPU and memory utilization recommendations with replica bounds, stabilization windows and scaling policies. Replay CSV observations locally and export autoscaling/v2 YAML.
Network Tools
Ingress to Gateway API Migration & Validator
Convert Ingress v1 to Gateway and HTTPRoute drafts, resolve named Service ports, inspect routing references and test request matching without contacting a cluster.
Network Tools
Kubernetes PVC Binding Diagnostics
Compare PVC capacity, access modes, class, selector, claim references and supplied volume topology. Distinguish static candidates, provisioning and WaitForFirstConsumer.
Network Tools
Kubernetes PDB & Rolling Update Calculator
Calculate PDB percentage rounding, healthy replica budgets and maintenance blockers. Separately calculate Deployment maxSurge and maxUnavailable and export configuration drafts.
Network Tools
Percentage & Discount Calculator
Calculate percentages, price changes, sequential discounts with optional tax, reverse discounts, gross margin and markup locally. See the formula and export results.
Calculators & Converters
Compound Interest & Savings Calculator
Model monthly savings with nominal or effective annual rates, inflation, deposit timing, a savings goal and a second scenario. View charts and export the monthly schedule.
Calculators & Converters
Adult BMI & Calorie Calculator
Calculate adult BMI in metric or US units and optional Mifflin–St Jeor resting and daily energy estimates. Transparent sources and eligibility limits; not medical advice.
Calculators & Converters
Passport Photo & Print Sheet Maker
Crop photos locally using US/UK printed-photo reference sizes or custom dimensions. Export DPI-tagged JPEG photos and multi-copy print sheets. No retouching or approval guarantee.
Image Tools
Historical World Map
Resolve calendar years, Chinese era names, and a historical person’s age into a time-aware world map of major polities, territories, rulers, era names, and known activity locations, with provenance and uncertainty shown clearly.
History & Humanities
Tournament Bracket Maker
Build seeded or shuffled single-elimination brackets and round-robin schedules. Handle byes, record scores and export readable match sheets locally.
Productivity & Habits
Graph Paper & Notebook Paper Generator
Create custom square, dot, lined, coordinate and Cornell paper. Set physical spacing and binding margins, then export a mixed paper pack as vector-line PDF.
Productivity & Habits
Printable Flashcard Maker
Import your own CSV or TSV, edit front and back text, review cards and print duplex or fold-over sheets. Preview every page and keep your content local.
Productivity & Habits
Gravel Quantity & Cost Calculator
Combine measured areas by material, enter supplier bulk density, and estimate gravel volume, weight, whole bags and bulk order increments with optional delivery costs.
Calculators & Converters
Crossword Puzzle Maker
Arrange your own English answers and clues into a numbered criss-cross puzzle. Check unplaced words, preview answers, and print puzzle, clue and answer sheets locally.
Productivity & Habits
Paint Quantity & Purchase Calculator
Estimate wall and ceiling paint across multiple rooms, deduct measured openings, separate primer and finish coats, and calculate whole containers, surplus and optional costs.
Calculators & Converters
Flooring Material & Box Calculator
Combine room areas by flooring product, subtract exclusions, add your waste allowance, and estimate whole boxes, leftover coverage and optional purchase costs.
Calculators & Converters
Printable Calendar Maker
Create monthly or overview calendars with your events and notes. Choose week start, A4 or Letter and orientation, then export PDF, page PNG or an event CSV locally.
Productivity & Habits
Printable Bingo Card Generator
Generate unique word or classic 75-ball bingo cards locally. Choose a grid and paper layout, download printable cards, and run a no-repeat caller without uploading your list.
Productivity & Habits
Fraction & Mixed Number Calculator
Add, subtract, multiply, divide, compare or simplify fractions and mixed numbers. Convert finite decimals, inspect exact arithmetic and print the solution steps locally.
Calculators & Converters
Word Search Maker
Create an English A–Z word search with chosen directions and difficulty. Check placed words, keep answers separate, and download a printable puzzle and answer key locally.
Productivity & Habits
Typing Speed Test & Practice
Practice words, paragraphs, punctuation or your own text. Measure active typing time, review mistakes, repeat difficult words and explicitly save statistics on this device.
Productivity & Habits
GPA & Grade Planner
Calculate credit-weighted GPA using your own grade scale, distinguish ungraded work from zero scores, and find the final exam score needed for a target. Save and export locally.
Productivity & Habits
Running Pace & Race Splits
Calculate running pace, finish time or distance in kilometers or miles. Build even, negative or positive splits, then export a full schedule or a printable pace band.
Calculators & Converters
Random Picker & Team Generator
Draw names with optional weights, avoid repeat winners across rounds and undo a draw. Randomly form balanced teams, display results full screen and export without uploading names.
Productivity & Habits
Concrete Volume & Bag Calculator
Add slabs, cylinders and post holes with separate dimension units. Include waste, choose a product yield or enter your own, round up total bags and estimate cost using your prices.
Calculators & Converters
Time Card & Timesheet Calculator
Build a weekly or biweekly timesheet with multiple shifts, explicit overnight work and unpaid breaks. Review regular hours, overtime under your own rules and optional gross pay, then export locally.
Productivity & Habits
Invoice & Estimate Generator
Create invoices and estimates with your logo, line items, discounts, user-entered tax and partial payments. Choose document language, currency and paper independently, then download a private local PDF.
Productivity & Habits
Bill Splitter & Group Expense Calculator
Record multiple payers and shared expenses, divide costs equally, by shares, percentages, exact amounts or items, and produce a balanced settlement plan. No invitations, accounts or payment connections.
Calculators & Converters
Recipe Scaler & Cooking Converter
Paste or edit an ingredient list, change servings and convert supported cooking units. Compare every original line with its scaled result, preserve uncertain lines and use sourced approximate ingredient weights.
Calculators & Converters
Complete ToolRen directory
Browse every tool by category, name, or task
This directory contains every published ToolRen utility. Search for a format or workflow, narrow the list by category, and open the exact tool you need without navigating through unrelated product pages.
Compare within a category
Category pages keep related workflows together, making it easier to choose between a focused converter and a broader workbench.
Continue with related tools
Each tool page links to nearby tasks so a multi-step workflow stays inside one consistent interface.
FAQ
Which tools are listed in the directory?
The directory shows the tools currently available on ToolRen. Browse the live list by category or search for a format or task; unavailable tools are excluded.
How can I find a specific utility?
Search by tool name, format, feature, or use case, or choose a category to browse a smaller set of related tools.