Analyse and edit binary files wherever you want, on any operating system, whether on a desktop or smartphone, and without installing any software. All you need is a modern web browser (Mozilla Firefox 53+, Google Chrome 58+, Opera 44+, Apple Safari 11+, Microsoft Edge 20+).
The complete file processing is done by your browser and HTML5 functionality. HexEd.it does not upload your data to the server. It can also compute various hash functions.
HexEd.it has a small memory footprint - it does not keep your files in memory. This makes it possible to handle very large files even on low-RAM machines. HexEd.it has been tested on files as large as 150 GiB.
See also https://jsqr.de/
for a QR-encoder.
Found on https://www.hpmuseum.org/forum/thread-18335-post-159984.html#pid159984