SecureStartKit

Free Developer Tools

Useful tools for SaaS developers. No signup required, completely free.

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Stripe Fee Calculator

Calculate Stripe processing fees, net payout, and effective fee percentage for any payment method and currency.

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Supabase RLS Policy Generator

Generate Row Level Security policies with templates for common patterns. Copy-paste SQL ready for your Supabase project.

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SaaS Pricing Calculator

Enter your costs and target margin to get break-even pricing, suggested tiers, and revenue projections.

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Open Graph Preview

Preview how your meta tags look on Google, Twitter/X, LinkedIn, Facebook, Discord, and Slack before publishing.

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SaaS Security Checklist

30 essential security checks across auth, database, API, frontend, and infrastructure. Get a score and track progress.

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Tech Stack Cost Estimator

Compare monthly costs of different hosting, database, auth, email, and payment providers at various user scales.