Developer Tool
URL Encoder / Decoder
Encode or decode URLs and query parameters for safe sharing
No data uploaded — 100% browser-based
Instant processing
No signup required
Mode
Input
EmptyOutput
Empty
Query Parameter Builder
Add key-value pairs to build an encoded URL
=
https://example.com/api
Common Encoding Reference
Quick reference for percent-encoded characters
| Character | Encoded | Description |
|---|---|---|
| ␣ | %20 | Space |
| ! | %21 | Exclamation |
| # | %23 | Hash |
| $ | %24 | Dollar |
| & | %26 | Ampersand |
| ' | %27 | Apostrophe |
| ( | %28 | Open paren |
| ) | %29 | Close paren |
| * | %2A | Asterisk |
| + | %2B | Plus |
| , | %2C | Comma |
| / | %2F | Slash |
| : | %3A | Colon |
| ; | %3B | Semicolon |
| = | %3D | Equals |
| ? | %3F | Question |
| @ | %40 | At sign |
| [ | %5B | Open bracket |
| ] | %5D | Close bracket |
| { | %7B | Open brace |
| } | %7D | Close brace |
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