
StartupDeckAI — Best Free AI Startup Idea Validation Tool 2026
Validate startup ideas with AI scoring, competitor analysis, market sizing and financial projections.
@yashrsuthar · X
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Tech stack
20 projects

Validate startup ideas with AI scoring, competitor analysis, market sizing and financial projections.
@yashrsuthar · X

@ts_hodl I vibe coded this to play around with sizing according to power law: https://t.co/bqVzUSN54E
@phishery · X
I vibe coded this to play around with sizing according to power law:

Score business ideas on market viability, competition, and demand.
@buildwithmaya · X
Hi Rashka I am building

Describe your situation. Get your exact marketing framework, step-by-step action plan, and real case study instantly. AI-matched from 40+ proven frameworks.
@framrcc · X
Framr is an AI growth strategist that matches founders and marketers with the right growth framework based on their business, stage, and goals in 10 seconds

Find price gaps between Polymarket and Kalshi prediction markets to identify arbitrage opportunities.
@b1llymane · X
startup #1 of 12 this year: it catches sportsbooks pricing the same game differently, bet both sides, profit either way. mostly built between 11pm and 3am, which felt thematically correct

Source-backed MLB market intelligence with price context and postgame auditability.
@JoeTheCode · X

Find buyers showing purchase intent and get AI-written outreach ready to send.
@rajkvishal · X
Find buyers already showing purchase intent — before your competitors do.

Shop designer blouses online in India. Custom fit, tracked shipping, 7-day returns. Pick from 500+ blouses by 500+ top Indian designers.
@mangeshwumn · X

Free calculators for analyzing startup and marketing metrics.
@NAVNEET_CODES · X
Free AI, startup, and marketing calculators built for founders, marketers, students, and business professionals.

Track the internet products gaining attention right now. Apps and startups list, receive tickers, and move on verified interest and momentum.
@StevenShips · X
Appmarket - The stock market for internet attention. Free to list. Every like moves the price. Hammer the like button. Climb the market. Take the top spot.

Live funding rates across Hyperliquid core and HIP-3 markets. Build long/short baskets and see the net carry instantly.
@akiran0ma · X

100 spaces. Sold in order. One company per space.
@euxhenjonex · X