Choose any ECH value, then paste your VLESS links.
Existing ech= will be replaced.
ECH value to inject / replace
Type any value you want. It will be automatically URL-encoded.
If a link already has ech=, it will be replaced.
Input links (one per line)0 links
Supports hundreds of links. Empty lines are ignored.
Result0 links
Copied!
Total processed: 0
ECH added: 0
ECH replaced: 0
How it works
1. Enter (or pick) the ECH value you want.
2. Paste any number of VLESS links.
3. Click Apply ECH to All.
• Links without ech= → parameter is added
• Links that already have ech= → the old value is replaced with your new one