Enter your input
Unicode or percent-encoded text. Use Try example where available to see the expected shape.
URL Encoder/Decoder
Encode components, full URLs or individual form values.
Encodes separators; + stays literal when decoding. Spaces use %20.
Last reviewed: · Testing methodology
How to use
Encode components, full URLs or individual form values.
Choose options and run
Select the relevant mode or settings. Automatic tools update as you type; other tools use the labeled primary action.
Review the result
Check the result against your input, then use the available copy or download action. Edits clear or recompute the result.
Examples and checks
How this tool works
Explicit encodeURI/decodeURI and component/form conventions. Processing stays in your browser.
- Input
- https://example.com/a b
- Output
- Full URL: https://example.com/a%20b
Limits and questions
Inputs are processed in your browser. Analytics and advertising can make separate network requests.
Limits, edge cases, and troubleshooting
Full URL mode keeps separators and encoded reserved characters during decode. Form-value mode turns + into space; component mode keeps + literal.
When to use another workflow
Use your target editor or runtime when exact platform behavior or a broader capability is required.
Verification
Review record: 2026-08-26. See the documented behavior and limitations above, and the testing standards for the scope of review.
Testing methodologyFrequently asked questions
- What does this tool support?
- Unicode or percent-encoded text. Full URL mode keeps separators and encoded reserved characters during decode. Form-value mode turns + into space; component mode keeps + literal.
- Where is my input processed?
- Tool calculations and conversions run locally in your browser. Existing analytics and advertising requests are separate from input processing.