Developer tools
Encode and decode Base64 text (with emoji and any language), switch to URL-safe Base64, or turn a file into a data URI.
File to Base64 data URI
For embedding small images or fonts in CSS or HTML (up to 10 MB).
Choose Encode or Decode.
Type or paste your text, or choose a file to get its Base64 data URI.
Copy the result. Tick "URL-safe" for tokens and URLs.
No. Base64 only changes how data is written so it fits in text (emails, JSON, URLs). Anyone can decode it, so never use it to hide secrets.
It replaces + and / with - and _ and drops the = padding, so the value can go in URLs and file names. JWTs use it.
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