URL Encode / Decode

Percent-encode and decode URLs.

Input
Output

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Decode X.509 / PEM certificates.

About the URL Encode / Decode

What does the URL Encode / Decode do?
Percent-encode and decode URLs. GeekTool runs the URL Encode / Decode entirely in your browser — input never leaves your device.
Is the URL Encode / Decode free?
Yes. The URL Encode / Decode is part of GeekTool, a free suite of 50+ developer utilities. No sign-up, no ads inside the tool, no quotas.
Does the URL Encode / Decode send my data to a server?
No. All processing is client-side JavaScript. Your input stays in your browser tab — we never see it.