URL Encoder / Decoder
Encode and decode URL strings with multiple encoding modes.
How do I use URL Encoder / Decoder?
Select Encode or Decode mode.
Choose encoding type: Component (default), Full URI, or Base64URL.
Type or paste your text into the input.
Copy the encoded/decoded result with one click.
What features does URL Encoder / Decoder offer?
Three encoding modes: encodeURIComponent, encodeURI, and Base64URL
Live conversion — results update as you type
Bidirectional: encode and decode with the same tool
100% Client-Side — no server requests
Frequently Asked Questions about URL Encoder / Decoder
What is the difference between the encoding modes?
encodeURIComponent encodes all special characters including ?, =, &, and /. encodeURI preserves the full URL structure (only encodes illegal chars). Base64URL encodes text as URL-safe Base64 for use in tokens.
When should I use URL Component encoding vs Full URI encoding?
Use encodeURIComponent for individual query parameter values (e.g., a search term). Use encodeURI only when encoding a complete URL where / and ? must remain intact.
Why does my URL still break even after encoding?
If you encoded the full URL using encodeURIComponent, it also encodes ://, ?, =, and # which breaks the URL structure. Encode only the parameter values, not the entire URL.
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