builder tools
Best tools for solo SaaS
Run a SaaS business alone with tools that handle dev, marketing, and support.
Quick recommendation
Run a SaaS business alone with tools that handle dev, marketing, and support.
The Solo SaaS Founder's Complete Stack
1. Stripe — Payments & Subscription Management
Use for: accepting payments, managing subscriptions, handling trials, and sending invoices. Stripe's API is the gold standard for SaaS billing. Stripe Billing handles subscription logic (trials, upgrades, cancellations) so you don't build it yourself. No monthly fee, 2.9% + $0.30 per transaction.
2. Supabase — Backend-as-a-Service
Use for: PostgreSQL database, authentication (email, social, magic link), file storage, real-time subscriptions, and Edge Functions. Supabase replaces Firebase, Auth0, and S3 for most solo SaaS needs. The free tier supports 50,000 monthly active users.
3. Resend — Transactional Emails That Actually Deliver
Use for: sending welcome emails, password resets, invoices, and notification emails. Resend's modern API and React email templates make building email flows enjoyable. 100 emails/day free, $20/mo for 50,000. Much better developer experience than SendGrid or Mailgun.
4. Sentry — Error Monitoring & Performance
Use for: catching bugs before users report them. Sentry captures errors with full stack traces, user context, and replay of what led to the error. As a solo founder, you can't watch logs 24/7 — Sentry emails you when things break. Free for up to 5,000 errors/month.
5. Crisp — Customer Support Chat
Use for: in-app chat widget, knowledge base, and chatbot automation. Crisp's free tier includes unlimited conversations. The chatbot can answer common questions automatically, reducing your support burden. Upgrade to paid for CRM integration and advanced automation.
Quick Comparison
| Tool | Category | Starting Price | Free Tier |
|---|---|---|---|
| Stripe | Payments | 2.9% + $0.30 | No monthly fee |
| Supabase | Backend | Free / $25/mo | Yes |
| Resend | Free / $20/mo | 100/day | |
| Sentry | Error tracking | Free / $26/mo | 5K errors/mo |
| Crisp | Support | Free / $25/mo | Yes |
How to choose for solo SaaS founders
Automate everything
As a solo founder, your time is the bottleneck. Stripe handles billing, Supabase handles auth, Resend handles emails, Sentry catches bugs. Every hour you spend building infrastructure is an hour not spent on your product.
Start with free tiers, upgrade at revenue
You can run a production SaaS on free tiers until you have paying customers. Stripe charges only per transaction, Supabase is free for 50K MAU, Crisp is free for support. Only upgrade when revenue justifies the cost.
Monitor before you market
Set up Sentry and Umami before launching publicly. You need to know when things break and how users behave. Fixing bugs quickly as a solo founder builds trust; discovering bugs through user complaints erodes it.