One Page PDF Converter
Free PDF tools that stay private, now with 3 premium tools
What it does
20+ free PDF tools that process entirely in your browser — no uploads, no accounts. Today we're adding 3 premium tools: AI document analysis, batch compress (50 files at once), and batch sign. $0.12/credit, no subscription.
Free online PDF converter with complete privacy protection. Convert PDF to Word, Word to PDF, merge, split, compress, and edit PDFs directly in your browser. Also includes a free age calculator and scientific calculator. No uploads, no data storage.
Convert PDF to Word, Word to PDF, merge, split, compress, rotate, sign, and edit PDFs — all processed locally on your device. Your files never leave your computer. Click any tool to open a secure, client-side editor. Nothing is uploaded. Handy everyday calculators — also 100% private, nothing leaves your browser. Use this free online age calculator to calculate age from date of birth instantly and accurately. Enter your birth date to find your exact age in years, months, and days, along with total days lived and a countdown to your next birthday. It works entirely in your browser — no sign-up needed — making it a quick way to calculate age for forms, eligibility checks, birthday planning,…from onepagepdfconverter.com
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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