Base64 Encode
Encode text to Base64 or Base64URL, with full Unicode support.
Encode
Base64
Help improve UNQIRO
Allow anonymous usage statistics? UNQIRO would count only which tool was used, whether it finished and which links between the tools and the Format Lab were followed. Your files, text and results are never included, and this use is not counted.
Standard or URL-safe
- Standard Base64: Uses + and / and pads with =. This is what most tools and email expect.
- Base64URL: Uses - and _ instead and leaves out the padding, so the result can go into URLs and file names unchanged, as in JSON Web Tokens.
- Not encryption: Anyone can decode Base64. Never use it to hide passwords or personal data.
Frequently asked questions
Why does Base64 make text longer?
Every 3 bytes become 4 characters, so the result is about a third larger than the UTF-8 input.
Why do other tools give a different result for emoji?
Some encode text in another character set or fail on characters outside Latin-1. This tool always uses UTF-8, the encoding used by the web.
Can I encode a file?
Yes: Encode a file turns any file, such as an image, into Base64, or into a data URI that starts with data: and its type. The file is read on this device.