UtilsDock – 200 free tools that run in the browser

What it does

Compress, convert, merge, calculate and clean up in seconds. Free, no sign-up: everything runs on your device. Real tool: made on your device with a secure random generator. Ready-made pages for the most common conversions, calculations and formats. For years, converting an image or signing a PDF meant uploading your file to some website, waiting, downloading it back with a watermark on it, and trusting that somebody deleted it afterwards. Browsers can now do that work by themselves, and that changes the rules. UtilsDock is built on exactly that. When you use a tool here, the code that does the work is downloaded once and runs on your own device, like an installed program. The result is…from utilsdock.com

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  123toolsJun 2026 · 123tools.to · ▲4

  30+ free in-browser video tools — no signup, no watermarks

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  ConvertKrApr 2026 · convertkr.com · ▲2

  Free PDF & image tools that never upload your files

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  Free ToolyzOct 2025 · freetoolyz.com · ▲7

  Free tools that make your daily tasks faster & easier

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  Puffin Tools2025 · pufomi.com · ▲10

  Convert images, edit PDFs, and transform data — 100% free, 100% private. Your files never leave your computer. No sign-up needed.

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  Free Online Tools( no sign up)Jul 2026 · tools.aliontechstudio.com · ▲4

  130+ free tools that run entirely in your browser.

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  ToolzspanJun 2026 · toolzspan.site · ▲3

  50+ free online tools. No signup or installation needed.

• WI
  What if the speed of light was 5 km/h?▲629

  Special relativity simulator in which light crawls along at a human speed, so Lorentz contraction, aberration and Doppler shift happen at walking pace.

  Life & fun · 23d ago · rivendell.dmitrybrant.com

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  I made a flight simulator, except you're just a passenger▲445

  Fly to every country as a passenger. Choose your next destination and collect country flags automatically as your flights finish.

  Life & fun · 19d ago · inflightsimulator.com

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  Pexo▲439

  Produce pitch perfect launch videos with precise control

  Life & fun · 14d ago · pexo.ai

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  Sai▲421

  The autonomous computer fleet at your command

  Life & fun · 13d ago · sai.simular.ai

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  MosMos▲407

  Voice writing that works before, during, and after meetings

  Life & fun · 18d ago · mosmos.io

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  The whole Solar System and every tracked satellite, live in the browser▲401

  Life & fun · 3d ago · space.bl2.net

• VO
  Vote on which of Hacker News' challenges for AI have been met▲195

  AI · 1d ago · stoppels.ch

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  Giving Opus 5.5 a simulated paint canvas▲160

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21h ago · stillwet.art

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  ShipHQ▲140

  Build your own app studio, powered by your real apps

  Growth · 1d ago · apps.apple.com

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  Audionaut – an open-source cross-platform multitrack audio editor▲131

  Dev tools · 14h ago · github.com

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  Bambu Lab R1▲123

  CO2 laser cutting with Bambu-style automation

  Life & fun · 1d ago · bambulab.com

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  Clef▲114

  Open-source decision models from Cloudflare

  AI · 1d ago · blog.cloudflare.com