URL Encode & Decode

Compare whole-URL and component encoding so reserved characters behave as intended.

Runs locally in this browser · No upload

Input0 characters

ResultencodeURIComponent / decodeURIComponent

Your result will appear here.

Treat + as a space when decoding form-style component data

Your text stays in this tab. Do not use browser-based text tools with material you are not allowed to process on this device.

Need a feature from the original version? Open the current ECECH tool

How this app works

Component encoding escapes reserved characters such as / and ?. Whole-URL encoding preserves URL syntax separators. Decoding errors are reported rather than silently dropping malformed input.