*WebAssembly used, no server side processing. Files are not uploaded to any servers, preserving your privacy.
Backup any file with printable paper copies. Note that file sizes are not preserved, so use archive formats (like rar or par2 for builtin partiy) or files where size does not matter (txt). Originally made by Twibright Labs.
Use unoptar to decode scanned optar PNGs (only supports 32x46 x/ycrosses values at the moment which encodes ~50KB per A4 page)