🔒 Runs in your browser — nothing is uploaded✓ Free, no signup
Free URL Encoder & Decoder Online
Encode special characters to URL-safe percent-encoding or decode percent-encoded strings instantly. Runs entirely in your browser — no upload, no login.
When should you use this URL Encoder & Decoder?
- Encode URLs with special characters for use in query parameters
- Decode percent-encoded URLs to read their original content
- Debug broken links with encoded spaces or symbols
- Prepare URLs for API requests, form submissions, or redirects
- When you need quick URL encoding directly in the browser without any tools
Example use case:
You need to pass a URL as a query parameter in another URL. Paste the raw URL into the encoder to convert it to a safe percent-encoded string (e.g., spaces become %20, & becomes %26) — all without installing any tools.
Tip: Use the decoder to inspect what a percent-encoded URL actually says — especially useful when debugging redirects or API responses.
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URL Encoder & Decoder FAQ
Use it when your URLs or query parameters contain spaces, special characters, or symbols that break requests.
It converts unsafe characters into percent-encoded form (for example, space becomes %20) so URLs remain valid.
encodeURI is used for full URLs and keeps reserved characters. encodeURIComponent is used for query values and encodes reserved characters too.
%20 is the encoded form of a space character. It is normal in valid URLs.
Decoding is safe for debugging and readability. Always validate decoded values before using them in code to avoid injection issues.
If the converter runs in your browser, input stays local and is not uploaded or stored on servers.