Choose any ECH value, then paste your VLESS links.
The tool will inject ech=… into every link.
ECH value to inject
Type any value you want. It will be automatically URL-encoded when inserted.
Presets are just quick shortcuts.
Input links (one per line)0 links
Supports hundreds of links. Empty lines are ignored.
Result0 links
Copied!
Total processed: 0
ECH added: 0
Already had ECH: 0
How it works
1. Enter (or pick) the ECH value you want in the field above.
2. Paste any number of VLESS links.
3. Click Add ECH to All. The tool inserts
ech=YOUR_VALUE (properly encoded) before type=
when possible. Links that already contain an ech= parameter are left unchanged.