You don't need money to start a company. You need taste, time, and the right tools. We've tested hundreds of free tiers, and most of them are traps. They lure you in, then gate the one feature you actually need behind a $20/month plan.
These 12 tools are different. Their free tiers are genuinely usable for a solo founder shipping a real product. We use most of them ourselves.
Planning
Notion
What it does: Docs, databases, wikis, project tracking. It's the operating system for your solo company. Write your PRD, track tasks, build a CRM, store meeting notes. All in one workspace.
Why the free tier works: Unlimited pages and blocks for individual users. You get everything you need until you start hiring.
Honest limitation: It can get slow with very large databases. And the temptation to over-engineer your workspace is real. Keep it simple.
Claude
What it does: AI that thinks. Use it for brainstorming product ideas, writing copy, debugging code, analysing competitors, drafting emails. It's like having a cofounder who never sleeps.
Why the free tier works: The free tier gives you access to Claude's core capabilities. For most solo founders, that's more than enough to validate ideas and draft content.
Honest limitation: Usage limits on the free tier mean you'll hit a wall during heavy working sessions. Worth upgrading once you're generating revenue.
Building
Next.js
What it does: The React framework for production. Server-side rendering, API routes, file-based routing, image optimisation. It's what most of the modern web runs on.
Why it's free: Completely open source. No tiers, no limits. You get the same framework that powers Notion, Hulu, and TikTok's web app.
Honest limitation: The learning curve is steep if you're new to React. And the framework moves fast, so tutorials from six months ago might already be outdated.
Supabase
What it does: Postgres database, authentication, file storage, edge functions, and real-time subscriptions. It's a backend in a box.
Why the free tier works: 500MB database, 1GB file storage, 50,000 monthly active users on auth. That's enough to launch, get users, and validate your idea.
Honest limitation: Free projects pause after one week of inactivity. If you're building something you check on daily, that's fine. If it's a side project you revisit monthly, it's annoying.
Vercel
What it does: Deploy your frontend with a git push. Preview deployments for every branch, automatic HTTPS, edge network, serverless functions.
Why the free tier works: 100GB bandwidth, unlimited deployments, custom domains. For a solo founder's app, this is more than enough. You'll likely hit product-market fit before you hit Vercel's limits.
Honest limitation: Serverless function execution time is capped at 10 seconds on the free tier. Long-running processes need a different approach.
Design
Figma
What it does: Design tool for interfaces, prototypes, and design systems. The industry standard for a reason.
Why the free tier works: Three Figma files and unlimited personal drafts. For a solo founder designing one product, that's plenty. You also get access to the community with thousands of free templates.
Honest limitation: Three files sounds like a lot until you realise you need one for your app, one for your landing page, and one for marketing assets. You're already out of files.
Canva
What it does: Quick design for everything that isn't your product UI. Social media posts, pitch decks, logos, Open Graph images, email headers.
Why the free tier works: Hundreds of thousands of templates, a solid drag-and-drop editor, and enough export options for most needs.
Honest limitation: The best templates and stock photos are locked behind Pro. You'll learn to spot Canva free-tier designs in the wild because everyone uses the same templates.
Analytics
PostHog
What it does: Product analytics, session recordings, feature flags, A/B testing, and surveys. It's the all-in-one analytics suite that actually respects your users.
Why the free tier works: One million events per month, 5,000 session recordings, and unlimited feature flags. Most solo founders won't touch those limits for months.
Honest limitation: The dashboard can feel overwhelming at first. There's a lot of power here, and figuring out which metrics actually matter takes time.
Plausible
What it does: Simple, privacy-friendly web analytics. No cookies, no consent banners, just clean traffic data in a one-page dashboard.
Why it works for founders: Plausible doesn't have a free tier for hosted, but their self-hosted version (Plausible Community Edition) is free. If you're already running a server, this costs you nothing.
Honest limitation: Self-hosting requires some DevOps knowledge. And the simplicity that makes it great also means you won't get the deep funnel analysis PostHog provides.
Resend
What it does: Transactional email API built for developers. Send password resets, welcome emails, and notifications with clean, modern templates using React Email.
Why the free tier works: 3,000 emails per month and 100 per day. For an early-stage product, that covers your transactional email needs entirely.
Honest limitation: The 100 emails per day limit can bite you if you're doing a launch and suddenly get a burst of sign-ups. Plan your launch day accordingly.
The stack in action
Put these together and you have a complete, production-ready stack that costs exactly nothing:
- Plan in Notion, brainstorm with Claude
- Build with Next.js, store data in Supabase, deploy on Vercel
- Design your product in Figma, marketing assets in Canva
- Track with PostHog or Plausible
- Email users through Resend
That's not a compromise stack. That's what many funded startups use too. The difference is they're paying for higher tiers. You don't need to until you have the revenue to justify it.
Want to see how these tools fit together for your specific use case? Try our Stack CardStack Builder to get a personalised recommendation. Or browse the full tools directory to explore alternatives.
Build more. Spend less.