Toolfiddle
143 free tools that never upload your files
What it does
Toolfiddle is 143 everyday tools that do their work inside your browser tab instead of on a server. Convert HEIC to JPG, merge PDFs, strip EXIF, cut out a background, size a passport photo, run a mortgage calculation. Your file is read locally and handed straight back. Nothing is uploaded, so there is no queue, no watermark, no account, and no daily counter. Close the tab and nothing is left sitting on anyone's server. Free and ad supported, with no paid tier holding the useful parts back.
Does the same job
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Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io
- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com