Features
- Encode / Decode mode toggle beside the title.
- Encode: CJK, spaces, and special characters → %XX.
- Decode: percent sequences → readable text.
- Process, Reset, and Copy content.
Former URL Encode and URL Decode are merged: pick a mode with the title Segment…
Invalid %xx sequences show an error and produce no result.
Legacy /#urlencode and /#urldecode redirect here.