PrintPixel Tool
Check print size, PPI & cropping without uploading photos
What it does
PrintPixel Tool helps photographers and creators find the right print size for their images. Check PPI, print dimensions, image resolution and aspect-ratio cropping in seconds. Everything is processed locally in your browser, so your photos don't need to be uploaded to our server. Free, simple and built for real-world printing.
Does the same job
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PrintRealSize 13d ago · printrealsize.com · ▲2Scale any image to physical size, split into printable pages
- IMI made a tool to inspect raw pixel buffers2024 · pixpeep.mort.coffee · ▲5
I used to use rawpixels.net for this purpose, but that website suddenly disappeared earlier this year. I threw together this web app as a replacement. It's nothing fancy, but it does what I need, and it might do what you need too. Feel free to suggest a new name. PixPeep is the name I came up with because it lets you peep at pixel buffers, but the name is already used by something else (and it's honestly not that great).
More work this month
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The app store for voice native apps that lives in your notch
Work · 28d ago · voiceos.com

The New Calendly▲211Handle all of the work before, during, and after meetings
Work · 17d ago · calendly.com
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