undertone
A text box that tells you how your message sounds before you send it. Powered by Jev.
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GITHUB · launched Sep 23, 2026 · 8 upvotes (top 88%) · 0 views
Niche: content filtering and quality checkers · 46 launches, 1 in the last 7 days ▼ -89% · Explore this niche →
Category and tags
- Horizontal
- Communication
- B2C
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 46 launches in content filtering and quality checkers →
Could you build this?
Yes It is a single-purpose web application with a text input that queries an LLM to evaluate tone and returns feedback, which is easily vibe-coded.
Competitors
Other products that read as similar to this one : 58 launches clear the similarity bar, closest 8 shown.
Attention rank: #57 of 59 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 324 days after the earliest competitor.
- Undertone · ph · 2026-11-05 · 3 upvotes · similarity 0.54
- undertone · github · 2026-10-25 · 13 upvotes · similarity 0.48
- Tone Generator · hn · 2026-08-02 · 10 upvotes · similarity 0.41
- Tone keyboard · ph · 2026-10-21 · 1 upvotes · similarity 0.39
- Tonelee · ph · 2026-09-14 · 2 upvotes · similarity 0.39
- Lovy · ph · 2026-10-17 · 2 upvotes · similarity 0.38
- Tonely AI · ph · 2026-10-14 · 1 upvotes · similarity 0.37
- skryba · github · 2026-09-26 · 13 upvotes · similarity 0.36
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.