Jev in production › Writing and content scoring

undertone

Web text box that sends each draft message to Jev as eight typed tone questions in one call, covering passive-aggression, sarcasm, over-apologizing, urgency and manager-safety; code turns the answers into a verdict, color and phrase tips.

Open on undertone-app.vercel.app ↗

The source publishes no measured number.
Use
Writing and content scoring
Industry
Productivity
Form
Open-source tool
Stage
In production
Listed
2026-09-24
Found via
github

Badge

For the project's own README, linking back here:

Listed in Jev in production

Also used for writing and content scoring