Free SaaS Tools & Calculators
31 free tools for SaaS founders. Calculate MRR, LTV, CAC, churn, and valuation. Generate startup ideas with AI. Launch your product.
Platform & Discovery
Launch products, discover ideas, and explore data for free
LaunchDB
Browse product launches and submit your own startup for free exposure
SwiperDB
Swipe through validated startup ideas and save the ones worth building
Platform Demo
Watch video walkthroughs of every BigIdeasDB feature before signing up
Live Data Examples
Preview real market intelligence data from Reddit, G2, Capterra, and more
SaaS Calculators
9 essential metrics calculators used by over 1,000 SaaS founders
Business Price Checker
Is a business's asking price fair? Compare it with 27,000+ US listings in its industry and test it against an SBA loan
What Business Makes $10,000 a Month?
Enter the income you want and your cash. See which real businesses you could buy that still pay you that much after the loan
MRR Calculator
Calculate Monthly Recurring Revenue, track growth rate, and forecast annual run rate
CAC Calculator
Calculate Customer Acquisition Cost across marketing channels and campaigns
LTV Calculator
Estimate Customer Lifetime Value and optimize your LTV:CAC ratio
ROI Calculator
Measure Return on Investment for marketing spend and business initiatives
Break-Even Calculator
Find your break-even point based on fixed costs, variable costs, and pricing
Startup Cost Calculator
Estimate one-time setup, monthly burn, working capital, runway, and contingency
Burn Rate Calculator
Calculate monthly burn rate and remaining runway from your cash balance
Churn Rate Calculator
Measure customer and revenue churn rates to identify retention issues
SaaS Valuation Calculator
Estimate your SaaS business valuation using ARR multiples and growth metrics
App Store Revenue Calculator
Project subscription app revenue, profit, and LTV using real benchmarks from 100,000+ apps
AI-Powered Tools
Generate and validate startup ideas using AI trained on real market data
AI Domain Name Generator
Describe your idea and get 12 brandable domain names, each checked live against real registry data
AI Business Idea Generator
Generate startup ideas backed by real user pain points and market demand data
Mobile App Idea Generator
Generate app ideas from 136,000+ analysed App Store and Google Play reviews, each tied to a real complaint
Build Your Own ASO Tool
Copy one prompt into your AI agent and build an App Store keyword tracker with real ranks in 40+ markets
AI Idea Evaluator
Score and validate your startup idea across market size, competition, and feasibility
Reddit Keyword Generator
Extract high-intent keywords from Reddit discussions in your target niche
SaaS Metrics Dashboard
Input your numbers and visualize MRR, churn, LTV, and growth in one dashboard
Niche Finder
Find underserved, buildable niches grounded in real demand data from 1M+ complaints
Competitor Finder
Find and analyze competitors from real funded-company and revenue data, plus the gaps to exploit
Site Teardown
Paste your product URL and see what reviewers complain about in your category, from 1M+ real complaints
Market Size Calculator
Estimate your TAM, SAM, and SOM with transparent assumptions and methodology
Value Proposition Generator
Generate clear, differentiated value propositions for your product in seconds
User Persona Generator
Create detailed buyer and user personas with goals, pain points, and objections
SWOT Analysis Generator
Generate a strengths, weaknesses, opportunities, and threats analysis for any business
Target Audience Generator
Identify your best target audience segments and how to reach each one
Business Model Generator
Build a business model canvas and find the right revenue model for your idea
Frequently asked questions
BigIdeasDB offers 31 free tools: 12 calculators (MRR, CAC, LTV, ROI, break-even, startup cost, burn rate, churn rate, SaaS valuation and app store revenue, plus the Business Price Checker and the $10,000-a-month business finder), 15 AI and research tools (domain name generator, business idea generator, mobile app idea generator, idea evaluator, Reddit keyword generator, SaaS metrics dashboard, niche finder, competitor finder, site teardown, market size calculator, value proposition generator, user persona generator, SWOT analysis generator, target audience generator and business model generator), and 4 platform tools (LaunchDB, SwiperDB, the platform demo and live data examples).
BigIdeasDB's free calculators cover every core SaaS metric in one place: MRR, CAC, LTV, churn rate, burn rate, break-even, ROI, startup cost and SaaS valuation, plus an app store revenue calculator. Each one is a single focused page, so you can run the number you need without a spreadsheet template.
Yes, the BigIdeasDB MRR calculator is 100% free with no signup required. It lets you calculate Monthly Recurring Revenue, track growth rate, and forecast your Annual Run Rate (ARR). All 12 calculators on BigIdeasDB are free.
The BigIdeasDB AI Business Idea Generator analyzes real user pain points and market demand data from Reddit, G2, Capterra, and app store reviews to generate validated startup ideas. It uses AI to match unmet needs with viable business opportunities, giving you ideas backed by actual user complaints rather than guesswork.
LaunchDB is BigIdeasDB's free product launch platform where founders can submit and showcase their startups. You can browse current and past launches, discover new products, and submit your own project for free exposure to the BigIdeasDB community.
The SaaS calculators and AI idea tools are fully accessible for free. Platform features like SwiperDB and LaunchDB are available with a free BigIdeasDB account.
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Go from idea to launch with market intelligence, revenue data, AI project management, and everything you need to build and ship.