Is the URL-Safe Base64: Encode Data for Links & Params free to use?

Yes, it is 100% free with no hidden fees or subscriptions.

Absolutely. All processing happens locally in your browser. We never upload or store your data.

Do I need to create an account?

No signup is required. You can start using the tool instantly.

Base64 Encoder/Decoder

Built by IteraTrail • 100% Free & Private

Processed instantly in your browserNo account requiredYour data stays privateFast & lightweight processingReal-time output

URL-Safe Base64: Encode Data for Links & Params

Standard Base64 contains characters like '+' and '/' that break URLs. Our URL-safe converter uses '-' and '_' instead, making your data perfect for query parameters and links.

Start using the Base64 Encoder/Decoder below

Initializing base64 encoder...

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Key Benefits

Automatic URL-safe character mapping
Perfect for tokens and session IDs
Bi-directional URL-safe conversion

How to Use

1
Toggle the 'URL Safe' mode in the settings.
2
Input your data for encoding or decoding.
3
Get a string that's guaranteed not to break your URLs.

Frequently Asked Questions

? What characters are changed?

'+' becomes '-' and '/' becomes '_'. Equality signs '=' are also stripped or modified.

? When should I use URL-safe?

Whenever you are passing data inside a URL query string or path.

? Is it compatible with standard decoders?

Standard decoders need to be told it's URL-safe to handle the special characters correctly.