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Base64 URL Encoder Converter Runs in your browser. No input data is sent to our server.

Paste plain text into the editor, encode it instantly to Base64URL, and copy the result. This page is useful for JWT debugging, URL-safe payloads, browser-safe tokens, callback values, and developer tooling.

Base64URL output

Paste content and convert it instantly.

This converter runs in your browser so you can reshape structured text, config data, and encoded values without sending working content to a remote processing service.

Encode Text To Base64URL Online

Encode text to Base64URL online for JWT segments, URL-safe payloads, browser-safe tokens, and developer workflows.

How to use Base64 URL Encoder Converter

1

Paste content into the text input panel.

2

Run the converter to generate the target format instantly.

3

Copy the result once it looks right.

What this tool helps you do

Paste, convert, and copy results quickly

Useful for APIs, configuration files, and structured text

Sample input is built in for quick testing

Copy the converted output as plain text

Why this helps in text and data workflows

Encoding a JWT header or payload segment manually for debugging or constructing a token by hand.

Encoding a redirect URL or callback value for safe embedding in a query parameter without further percent-encoding.

Creating a URL-safe token or identifier from arbitrary text for use in a web application.

Encoding a value that needs to be passed as a URL fragment or hash parameter without breaking the URL structure.

Common problems and fixes

The Base64URL output still has = padding and I need it removed.

Base64URL omits padding by default in this tool. If you are seeing = signs, check whether you are using the standard Base64 Encoder instead — that one preserves padding.

I'm getting a different result from my library's Base64URL encoder.

Check how your library handles the input encoding. This tool encodes UTF-8 text. If your library encodes raw bytes differently, the Base64URL output will differ. Also confirm that your library omits padding — some Base64URL implementations keep it.

I need to decode a Base64URL string, not encode one.

Use the Base64URL Decoder to turn a Base64URL-encoded value back into readable text.

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Related Guides

What Is Base64URL and When Is It Used? When to Use Base64URL Instead of Base64 What Is Base64 Encoding Used For?

Frequently asked questions

How do I encode text to Base64URL?

Paste your text into the input box, run the encoder, and copy the Base64URL output.

What is the difference between Base64 and Base64URL?

Standard Base64 uses + and / characters and = padding. Base64URL replaces + with - and / with _ and omits padding, making the output safe to include directly in URLs and JWT segments without percent-encoding.

Is this Base64URL encoder free?

Yes. It is free to use in your browser.

When should I use Base64URL instead of standard Base64?

Use Base64URL whenever the encoded value will appear in a URL, a JWT segment, a cookie, or any context where + and / would need to be percent-encoded. Base64URL avoids that extra step.

Do JWTs use Base64 or Base64URL?

JWTs use Base64URL. The header, payload, and signature segments of a JWT are all Base64URL-encoded without padding. Use this encoder to encode JWT parts manually.

Can I decode Base64URL with this tool?

No, this tool only encodes. Use the Base64URL Decoder to turn a Base64URL-encoded string back into plain text.