# Base64

Canonical: https://herebetools.com/base64

Encode and decode Base64 strings and files

Convert text or binary data to Base64 and back in seconds. Supports both standard Base64 and URL-safe Base64 (RFC 4648), which replaces + with - and / with _ for use in JWTs and URLs. Paste text or upload a file — the output appears instantly without any server round-trip. Useful for embedding images in HTML as data URIs, encoding API payloads, and debugging authentication tokens.

## Questions and answers

### What is the difference between standard and URL-safe Base64?

URL-safe Base64 replaces + with - and / with _, making the output safe for URLs, filenames, and JWTs without requiring percent-encoding.

### Can I encode binary files?

Yes, upload any file and it will be Base64-encoded entirely in your browser without being uploaded to a server.

## Related tools

- [URL Encode](https://herebetools.com/url-encode): Percent-encode and decode URLs and query strings
- [Escape / Unescape](https://herebetools.com/escape): Escape and unescape HTML, JS, JSON, and URL strings
- [Image → Base64](https://herebetools.com/image-base64): Convert images to Base64/Data URIs — file never leaves your browser
- [JWT Decoder](https://herebetools.com/jwt): Decode and inspect JWT tokens

Tool processing runs in your browser.

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