Super medical student by day, developer by night. Ryan built AuraNotes because he was tired of printing dark-themed lecture slides that wasted half a cartridge. Fuelled by cricket (massive Virat Kohli fan 🏏), caffeine, and the belief that good tools should be free. AuraNotes is the result — no ads, no sign-ups, no nonsense.
🏥 Medical Student💻 Developer🏏 Cricket Fan🎨 Artist Studios⚡ Team Ryan
Absolutely not. AuraNotes runs 100% inside your browser using PDF.js and pdf-lib. Your files never leave your device. There is no backend server receiving your documents. This is a core design principle, not a marketing claim.
This was a known bug — fixed in the latest version! AuraNotes now sorts your PDFs alphabetically by filename before merging, so Lecture1.pdf, Lecture2.pdf, Lecture3.pdf will always come out in the right order. The merge is also strictly sequential, guaranteeing no pages slip out of place.
Some slides use complex gradients or embedded images with dark themes. The filter works by pixel-level luminance thresholding, which is great for most slides but may leave artifacts on complex backgrounds. Try enabling just "Clear Background" without Invert first, then add Invert if needed.
There's no hard server-side limit because everything runs locally. Practical limits depend on your device's RAM. Files over 50 MB will show a warning. On desktop with good RAM you can typically handle 200+ page decks fine. Mobile devices should stay under 30 MB for best results.
Yes. Ryan built this for fellow students who needed a free, private tool. There are no premium tiers, no paywalls, and no plans to add them. The tool is hosted on
free tier. It stays free as long as it stays alive.
Yes! AuraNotes is fully responsive. On mobile, rendering is automatically scaled down for performance (lower render scale, smaller batch size). It's tested on iPhone Safari and Android Chrome. Large PDFs may be slower on mobile — that's expected given the in-browser processing.