You'll find Base64 everywhere: API tokens, embedded images, email attachments, auth headers. It's not encryption — it's just a way to represent binary data as plain ASCII text so it survives systems that only handle text.
When do you need it?
- Debugging APIs — decode a token to see what's inside the payload.
- Embedding data — turn a small image into a data URI for your HTML.
- Quick sharing — encode a snippet so special characters don't break in transit.
How to do it fast
Paste your text, hit Encode, and copy the result. To reverse it, paste Base64 and hit Decode. If the input isn't valid Base64, you'll get a clear error instead of garbage output.
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Try it free: Base64 Encoder — no sign-up, no uploads, everything runs in your browser.
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