URL encode
Percent-encode and decode URL components and full query strings.
Details and questions
Features
- Component mode keeps reserved characters in a query
- Decode malformed escapes without losing the rest
- Bidirectional, one click to swap
How to use
- Open the tool you need.
- Paste input on the left or into the input box.
- Read and copy the result; nothing is uploaded.
Questions
Is my data uploaded?
No. Every tool runs locally in your browser; pasted text stays on this device.
Is there a usage or length limit?
There is no account and no quota; the practical limit is the memory of this device.
What is DevZero?
DevZero is a set of local developer text tools — encoding, hashing, time, regex and more, usable offline.