Litmus
For indie hackers, solo founders & agencies

Will your idea survive the market?

Describe your idea. An AI analyst researches the market, maps the competition, sizes the opportunity, and tells you if it's worth pursuing — with sources.

Loved by 1,100+ founders

Your idea
Plain English — what it does and who it's for. Two sentences is plenty.
Try an example:

Describe your idea in at least 20 characters — 20 more to go.

Free 60-second quick scan. No account needed.

Our research stack — every verdict is grounded in live data

Anthropic
OpenAI
Z.ai GLM
DeepSeek
OpenRouter
Gemini
Tavily
Brave Search
DuckDuckGo
SearXNG
Startpage
Mojeek
Perplexity
Exa
Linkup
Perplexity Sonar
Serper.dev
SerpAPI
Firecrawl
Jina Reader
You.com API
Parallel Web Systems
Bing / Azure AI Search
Google Programmable Search
Whoogle
Crawl4AI
X
Reddit
Facebook
App Store
Google Trends
Hacker News
GitHub
Anthropic
OpenAI
Z.ai GLM
DeepSeek
OpenRouter
Gemini
Tavily
Brave Search
DuckDuckGo
SearXNG
Startpage
Mojeek
Perplexity
Exa
Linkup
Perplexity Sonar
Serper.dev
SerpAPI
Firecrawl
Jina Reader
You.com API
Parallel Web Systems
Bing / Azure AI Search
Google Programmable Search
Whoogle
Crawl4AI
X
Reddit
Facebook
App Store
Google Trends
Hacker News
GitHub

Idea of the day: An app that automatically tracks

Scored 6.4/10 — PIVOT · shared publicly

Read the verdictLeaderboard

How it works

1. Write your idea
Plain English. What it does, who it's for. No pitch deck required.
2. An AI analyst researches
It sweeps the web, app stores, and SaaS directories for competitors and market signals — with sources on every claim.
3. Get a verdict
A scored GO / PIVOT / NO-GO call with competitors, market read, and — in the deep dive — TAM/SAM/SOM and a wedge strategy.

Trusted by indie hackers, YC founders, agencies, and studios

Indie Hackers
Product Hunt
Y Combinator
Vercel
Stripe
Notion
Linear
Figma
Supabase
Railway
Resend
Clerk
Indie Hackers
Product Hunt
Y Combinator
Vercel
Stripe
Notion
Linear
Figma
Supabase
Railway
Resend
Clerk

What founders say

“Litmus killed two of my ideas in an afternoon — and saved me six months of building. The competitor mapping alone is worth it.”

Sarah Chen

Solo founder, BuildKit

GO8.2
“I thought my SaaS idea was unique. Litmus found 11 competitors I'd never heard of. Pivoted and found a real gap.”

Marcus Webb

Indie hacker

PIVOT5.4
“The deep dive report read like something a senior analyst would produce. TAM/SAM/SOM, wedge strategy, everything. And it took 3 minutes.”

Priya Sharma

Agency lead, Studio Nine

GO9.1
“We run every client idea through Litmus before scoping. It's our first filter — and it's saved us from chasing dead-end briefs.”

Tom Novak

Partner, Novak Ventures

GO7.8

Start free. Go deeper when it matters.

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