Built around real tasks
Each page targets a specific job, from JSON Schema validation and PostgreSQL prototyping to HEIC conversion and PDF page management.
Everyday tasks, one toolkit
Spend less time searching. Get more done.
Discover the right utility by category, from developer workflows and image tasks to everyday productivity. The home page stays curated; the full directory lives under All tools.
Quick start
Start with a popular category
72
Available tools
15
Categories
Browse by category
Choose what you want to work on
Categories are the main way into the collection. Pick a direction, then open its complete tool list.
Game Tools4 toolsDeveloper Tools16 toolsData & Spreadsheets4 toolsDate & Time6 toolsCalculators & Converters3 toolsProductivity & Habits7 toolsSecurity & Privacy2 toolsEncoding2 toolsText Processing4 toolsAudio & Video7 toolsImage Tools8 toolsNetwork Tools2 toolsFile Tools2 toolsPDF Tools4 toolsHistory & Humanities1 tools
Curated by category
Popular categories, with only the best starting points
Each category keeps just a few useful entries on the home page. The complete list stays on the category page so the home page remains easy to scan.
Developer Tools
Showing 3 of 16
JSON FormatterClean, validate, and prettify structured dataCode Formatter & MinifierOne workspace for JSON, SQL, and front-end codeJSON DiffCompare JSON structurally and merge fields
View all 16 in this categoryImage Tools
Showing 3 of 8
Image CompressorCompress images and convert formatsImage Base64 ConverterConvert images and Base64 both waysImage WatermarkAdd text and logo watermarks in batches
View all 8 in this categoryProductivity & Habits
Showing 3 of 7
Personal Budget & Savings PlannerGive every part of your income a clear jobHabit TrackerTurn small actions into visible long-term changeTime Blocking PlannerPut what matters into real time on your calendar
View all 7 in this categoryAudio & Video
Showing 3 of 7
Universal Video PlayerOpen local video, direct links, M3U8, and torrents without installing an appAudio & Video WorkbenchUpload once and finish everyday media tasksOnline Video CutterTrim an exact video clip locally in your browser
View all 7 in this categoryDate & Time
Showing 3 of 6
Timestamp ConverterConvert Unix timestamps and readable timeWorld ClockSee the time around the world at a glanceDate CalculatorCalculate spans, date shifts, and workdays clearly
View all 6 in this categoryGame Tools
Showing 3 of 4
One-Minute Reaction ChallengeWake up your focus and reflexes in 60 secondsCloud Star CatcherCatch the starlight, dodge the rainArcade EmulatorPut a classic arcade in your pocket
View all 4 in this categoryStill looking for something else?
Explore all 72 available tools with category filters and keyword search.
Popular search workflows
Start with a focused guide
Focused guides for common workflows, each connected directly to the relevant browser tool.
One practical toolkit, 72 focused tools
Finish developer, file, and everyday tasks without installing another app
ToolRen brings focused utilities into one fast, bilingual workspace. Format JSON, query a local database, compress media, organize a PDF, plan a project, or explore a year in world history—then move directly to the next related task.
Local processing where it matters
Many file, data, media, and developer workflows run in your browser, reducing unnecessary uploads and keeping the feedback loop short.
A connected tool directory
Clear categories and related-tool links make it easy to continue a workflow instead of starting another search.
FAQ
Is ToolRen free to use?
Yes. The public tools can be opened and used for free in a modern browser, with no software installation required.
Which kinds of tools are available?
The directory covers developer and data tools, date and time, calculators, productivity, security, encoding, text, networks, images, audio and video, archives, PDF, games, and interactive history.
Do files have to be uploaded?
Many file and data tools process their main workload locally in the browser. Pages that need an external connection explain that behavior in their interface.