
CropImageArt
CropImageArt — Free online image cropper
What it does
Free online image cropping tool with Rule of Thirds, Golden Ratio, and 5+ composition. A fast, beautiful, and private image cropping tool that works entirely in your browser. ✨ Features: • Drag & drop or paste images — instantly ready • 9 built-in aspect ratios (1:1, 4:3, 16:9, 3:2, 9:16, and more) • Freeform crop + lock ratio toggle • Rotate 90° CW/CCW, flip horizontal/vertical • Real-time preview at the bottom • Download in original quality — PNG/JPG/WebP
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OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
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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 · 16d ago · simedw.com