URL Encoder/Decoder
Encode, decode, and parse URL components
How to Use This Tool
1. Choose Operation: Select "Encode" to make text URL-safe, or "Decode" to convert %20 style codes back to readable text.
Encoding Types:
Component Encoding: Use for query parameters and values. Encodes spaces, &, =, ?, #, and special characters. Recommended for most cases.
Full URL Encoding: Preserves URL structure (:/?#). Use when encoding complete URLs while maintaining valid URL syntax.
Encoding:
2. Enter Text: Paste text, query parameter values, or user input that needs to be URL-safe.
3. Get Encoded URL: Output shows percent-encoded result (spaces become %20, & becomes %26, etc.).
Decoding:
4. Paste Encoded URL: Enter URL with %XX codes to decode back to human-readable format.
5. Query Parser: Optionally parse query strings into key-value pairs for easy inspection.
Always encode user input before adding to URLs. Prevents injection attacks and ensures valid URLs. Never double-encode.
URL Encoder/Decoder: FAQ
URL encoding converts special characters into a format that can be safely transmitted in URLs. Characters like spaces, &, =, ?, #, and non-ASCII characters must be encoded because they have special meaning in URLs or may not transmit correctly.
Encode when adding user input to query parameters, passing data in URL fragments, constructing API endpoints with dynamic values, or working with filenames/paths containing spaces or special characters. Always encode user-provided data before adding to URLs.
Component encoding (encodeURIComponent) encodes everything except letters, numbers, and -_.!~*'(). Full URL encoding (encodeURI) preserves URL structure characters like :/?#. Use component encoding for query parameters and values.
Technically yes, but it's usually a mistake. Double-encoding causes issues - "hello world" becomes "hello%2520world" instead of "hello%20world". Always decode before re-encoding to avoid this problem.