Base64 Encoder & Decoder
Encode UTF-8 text to Base64 or decode Base64 locally in your browser.
Developer
Free URL Encoder & Decoder
Encode or decode URL components locally with percent-encoding, without sending the value to a server.
Your input is processed only as required by this tool.
Free URL Encoder & Decoder
URLs reserve characters such as spaces, question marks, ampersands and slashes for specific meanings. Percent-encoding lets arbitrary text be safely represented inside a URL component. This tool uses the browser's standards-based URI component functions to encode or decode values locally.
How to use it
- Paste or type the value you want to process.
- Choose the operation or algorithm when the tool offers options.
- Generate the result locally in your browser, then copy it without uploading the input to Ciatto Tools.
How to read the result
Use component encoding for individual query values, path fragments or other pieces of a URL. Encoding an entire already-structured URL as one component can also encode separators that you intended to preserve.
Limitations
Malformed percent sequences cannot be decoded. The tool works on URL components rather than validating whether a complete URL is reachable or semantically correct.
Frequently asked questions
What does %20 mean in a URL?
%20 is the percent-encoded representation of a space byte in a URL component.
Is this the same as Base64?
No. Percent-encoding is designed for URL syntax, while Base64 represents bytes using a different text alphabet.