🔗 URL Encoder / Decoder
🔒 An toàn & Phía máy khách
Encode characters into percent-encoded form (e.g. space → %20) or decode them back. Use 'Component' for query values; use 'Full URL' to preserve reserved characters like : / ?.
How to use
- Paste your URL or text into the input panel.
- Pick Component mode for query values or path segments — this escapes reserved characters like
:/?&=. - Pick Full URL mode when encoding a complete URL — this preserves
:/?&=so the URL stays valid. - Click Encode or Decode; use Swap to flip input/output.
Component vs Full: use Component (encodeURIComponent) for anything that goes inside a URL piece — query values, path segments, fragment IDs. Use Full (encodeURI) only when escaping characters in an entire URL where you must keep ? and & as separators.
Examples
Component encoding (e.g., for a search query):
"hello world" → hello%20world
"a&b=c" → a%26b%3Dc
"안녕" → %EC%95%88%EB%85%95Full-URL encoding:
"https://x.com/?q=hello world"
→ https://x.com/?q=hello%20world