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URL Encoder/Decoder
Encode and decode URL strings in your browser. No data leaves your device.
All processing happens in your browser. No data is sent to any server.
- Paste your text or URL-encoded string in the input box above
- Choose Component mode (encodeURIComponent) for query parameters, or Full URL mode (encodeURI) for complete URLs
- Click Encode to convert text to URL-safe format, or Decode to convert back
- Click Copy Result to copy the output to your clipboard
All processing happens in your browser — nothing is sent to any server.
What is the difference between Component and Full URL mode?
Component mode (encodeURIComponent) encodes everything except A-Z, a-z, 0-9, and - _ . ~ — use it for query parameter values. Full URL mode (encodeURI) preserves characters like : / ? # — use it for complete URLs.
Is my data safe?
Yes. This tool runs entirely in your browser. Your data never leaves your device.
Why do I need to URL-encode strings?
URLs can only contain certain characters. Special characters like spaces, &, =, and non-ASCII characters must be percent-encoded to be safely included in URLs.