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Compare two lists and instantly see what's only in A, only in B, and shared by both. Built-in templates for Instagram followers, Excel/CSV columns, database IDs, and inventory lists. 100% client-side; nothing you paste is ever uploaded, no login required. Works offline, has a Chrome extension, and includes a visual diff, regex splitting, and find & replace. Free, no signup.
PH · launched Sep 16, 2026 · 3 upvotes (top 11%) · 0 views
Niche: comparison engines and tools · 286 launches, 33 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- B2C
- Not AI
- Hobby / open-source project
- Chrome Extensions
- Productivity
- Developer Tools
Visit website ↗ Source listing ↗
More like this: all 286 launches in comparison engines and tools →
Could you build this?
Yes A set-difference and comparison tool running 100% client-side in vanilla JavaScript or a browser extension is a beginner-friendly vibe-coding task.
Competitors
Other products that read as similar to this one : 108 launches clear the similarity bar, closest 8 shown.
Attention rank: #10 of 109 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 198 days after the earliest competitor.
- Compare Two Lists · ph · 2026-09-29 · 2 upvotes · similarity 0.61
- Text Diff Compare Tool with Charts · ph · 2026-11-04 · 2 upvotes · similarity 0.43
- Unfollow Radar · ph · 2026-11-03 · 1 upvotes · similarity 0.42
- Rosterbox · ph · 2026-09-28 · 3 upvotes · similarity 0.42
- frontend recon · ph · 2026-10-06 · 2 upvotes · similarity 0.40
- FileCheck · ph · 2026-09-24 · 1 upvotes · similarity 0.40
- Text Compare · ph · 2026-10-25 · 1 upvotes · similarity 0.39
- Cross-Posting Checker · ph · 2026-11-04 · 1 upvotes · similarity 0.39
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.