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URL Encoder / Decoder
Encode or decode URL-safe strings. Use encode for query params and links; use decode to read encoded URLs or API responses.
About this tool
URL encoding (percent-encoding) turns special characters into a form that can be safely used in URLs and query strings. For example, spaces become %20 and & becomes %26. Decoding reverses this so you can read human-readable text from an encoded URL or API response.
How to use
- Paste the text or URL segment you want to encode or decode.
- Click Encode to convert special characters to percent-encoded form (e.g. for query parameters).
- Click Decode to convert percent-encoded text back to readable form.
When to use this tool
- Building URLs with query parameters that contain spaces or special characters.
- Reading encoded URLs from logs or API responses.
- Preparing strings for use in URL-safe contexts (e.g. redirect_uri, state).
- Debugging broken links that show percent-encoded segments.
Tips
- Encode only the value part of a query parameter, not the whole URL, to avoid double-encoding.
- Decoding an already-decoded string is safe; decoding twice can turn %25 into % and then into nothing.
FAQ
- What is URL encoding?
- URL encoding (percent-encoding) replaces reserved or unsafe characters with % followed by two hex digits (e.g. space → %20). It lets you safely put special characters in URLs.
- Encode the whole URL or just a part?
- Usually encode only the part that needs it (e.g. the query value). Encoding the full URL can break the scheme and path.