Nicheloom

Market intelligence for builders — see what's gaining traction before it's crowded.

Compare Lists

Compare two lists instantly. Private, offline, free.

Details

External ID
1251274
Source
PH
Company
—
Product
Compare Two Lists
Website domain
producthunt.com
Launched
Sept. 16, 2026
Cohort
—
Upvotes
3
Upvotes percentile
0.8905013897797733
Tags
Chrome Extensions, Productivity, Developer Tools
Fetched at
Sept. 17, 2026, 1:22 a.m.
Updated at
Sept. 17, 2026, 1:22 a.m.

Description

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.

Enrichment

Theme
social media scraping and analytics
Vertical
Horizontal
Function
Dev tools
Audience
Prosumer
AI stance
Not AI
Project type
Hobby / open-source project
Normalized one-liner
offline diff tool for list comparisons
Manually corrected
False

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 — 62 launches clear the similarity bar, closest 8 shown.

Attention rank: #5 of 63 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 198 days after the earliest competitor.

Other launches for this product

Same idea, different domain

Nobody's really built a dev tools tool for Sales yet.