Base64 Encoder & Decoder
Convert text to and from Base64 format
Encode and decode text in Base64 format. Unicode characters are fully supported.
About this tool
The Base64 Converter encodes text to Base64 and decodes Base64 back to text, with full Unicode support. Useful any time binary-safe transport is required for a string.
Common use cases
- Inspect a JWT, an HTTP Basic Auth header, or an OAuth token by decoding its segments.
- Embed small images in CSS or HTML as data URIs without extra requests.
- Pack a small piece of configuration into a single safe-for-transport string.
- Decode email attachments, API responses, or log entries that contain Base64 fragments.