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URL Encoder/Decoder

Encode or decode URLs and query strings online. Supports both encodeURIComponent and encodeURI methods for different use cases.

What This Tool Does

Encode or decode URLs and query strings online. Supports both encodeURIComponent and encodeURI methods for different use cases. This tool runs entirely in your browser, meaning your files are never uploaded to any server. Your data stays private and secure on your own device.

Simply upload your file, wait for the processing to complete, and download the result. It's fast, free, and works on any device with a modern web browser.

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Frequently Asked Questions

What is URL encoding?
URL encoding (percent-encoding) converts special characters into a format that can be safely transmitted in URLs. Spaces become %20, & becomes %26, etc.
What is the difference between encodeURI and encodeURIComponent?
encodeURI preserves URL structure characters like /, ?, and & while encodeURIComponent encodes everything except alphanumeric characters. Use encodeURIComponent for query parameter values.
When should I encode URLs?
Encode URLs when passing special characters in query parameters, when handling user input in URLs, or when embedding URLs within other URLs.
Is this tool secure?
Yes, all encoding and decoding happens locally in your browser. Your URLs are never sent to any server.
Can I decode already encoded URLs?
Yes, switch to decode mode to convert percent-encoded URLs back to readable text.

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