Utilities: tools and formats

Everything we can do with Utilities files. Most of it right in your browser, with nothing uploaded.

Tools

File checksumin your browserWork out the MD5, SHA-1, SHA-256 or SHA-512 of a file to check that what you downloaded is what was published. The file never leaves your device.
File to base64 and backin your browserEncode a file as base64 — to paste an image straight into CSS, say — or decode a base64 string back into a file. The direction is worked out for you.