Base64URL Encoder — Free Online Tool

Encode or decode UTF-8 text to URL-safe Base64 (base64url) with no padding — ideal for JWTs and query parameters.. Base64URL Encoder is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Base64URL Encoder

Pick encode or decode and paste your text. Encoding produces base64url output with + and / replaced by - and _ and the = padding removed for URL safety.

Frequently asked questions

How is Base64URL different from Base64?

It swaps + for - and / for _ and drops the = padding, so the output is safe inside URLs, filenames and JWT segments without escaping.

Where is Base64URL used?

In JSON Web Tokens, OAuth, WebPush keys and any place Base64 must appear in a URL without percent-encoding.

Does it handle Unicode text?

Yes — text is encoded as UTF-8 first, so emoji and non-Latin scripts round-trip through encode and decode correctly.

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