About URL Encoder/Decoder
URL encoder/decoder converts special chars to percent-encoded format or back. Full URL and component encoding modes, batch processing, fully local.
How to Use
- Paste raw or encoded URL
- Choose encode or decode
- Select full URL or component mode
- Copy result
Frequently Asked Questions
- encodeURI vs encodeURIComponent?
- encodeURI preserves structure chars (:/?#&); encodeURIComponent escapes all non-alphanumeric chars. Use the latter for query values.
- Why does URL encoding make strings so long?
- Chinese chars are 3 bytes in UTF-8, each byte becomes %XX (3 chars). One Chinese char β 9 chars. Normal and not harmful.
- When do I need URL encoding?
- Spaces, non-ASCII, + & = in URLs; GET form submission; building API URLs. Without it, URLs may be truncated.