Encoder · Coming Soon

URL Encoder & Decoder

Encode special characters for safe URL use or decode percent-encoded strings — supports full URL encoding and query string component encoding, all in your browser.

Get notified the day we launch. No spam, ever.

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What to expect

Built for developers

Encode URLs for safe transmission or decode percent-encoded strings. Supports encodeURI, encodeURIComponent, and full URL component modes.

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Instant & in-browser

Runs client-side. Your data never leaves your browser.

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Zero ads

No ads, no trackers, no popups. Pure focus.

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File & paste support

Paste code or upload files. Both modes supported.

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Shareable links

Share output with teammates via a permanent link.

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Dark & light mode

Adapts to your system preference automatically.

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Mobile friendly

Fully responsive. Works on any screen size.

About this tool

OpenFormatter's URL Encoder & Decoder encodes and decodes URLs online for free. Supports encodeURI (encodes all non-URL-safe characters), encodeURIComponent (encodes all except alphanumeric and - _ . ! ~ * ' ( )), and raw percent-encoding. Handles Unicode characters, decodes malformed sequences gracefully, and supports both single-value and bulk encoding/decoding. All processing happens in your browser.

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