16QR Code Generator
Enter text and generate
Eighteen utilities for everyday development work — cron schedules, curl conversion, CSV and JSON, diffing, hashing, image processing. They execute in your browser tab, so files and secrets you paste stay on your machine.
Hashing, image resizing, diffing, and parsing all run as JavaScript on your own machine
using Canvas, FileReader, and crypto.subtle.
Files you select are never uploaded.
DNS lookup, IP lookup, and QR generation need a remote service to answer, so they are marked Uses API in the index. Everything else is marked Offline and works with your connection off.
The whole site is one HTML file with no third-party JavaScript libraries — nothing to audit, nothing to break when a CDN goes down.
Yes. Every tool is free, with no account, no sign-up, and no usage limits.
For the tools marked Offline, yes — the data is processed in your browser and never transmitted. Avoid pasting secrets into the three tools marked Uses API.
There is no server limit. Very large files are bounded only by your device's available memory, since the file is read locally.
MD5, SHA-1, SHA-256, and SHA-512. SHA variants use the browser's Web Crypto API and require an HTTPS connection.
Yes. The curl converter outputs JavaScript fetch, Node axios, Python requests, and Go net/http, including headers, request bodies, and basic auth.
Once the page has loaded, the 15 tools marked Offline keep working with no connection.
Bookmark ITInfoByte so the tools are one keystroke away next time you need to convert, compare, or hash something.