About Stax

Stax is a growing collection of free, fast, browser-based tools for developers, finance, creators, and everyone else who wants to get a job done without friction.

Our principles

• Privacy first. Every tool runs in your browser. We never store, log, or transmit your input.
• No login walls. If a tool can be used without an account, it should be. No email gating, no paywalls on basic features.
• Fast by default. Static pages. Instant load. Mobile-first.
• Honest monetization. A small number of unobtrusive ads on free tools. A reasonably-priced Pro tier (coming soon) for power users who want batch processing, unlimited AI, and zero ads.

What's coming

We're launching Stax in waves. The first 12 tools land this week — JSON formatter, QR code generator, password generator, regex tester, and the most-used finance calculators (EMI, SIP, age, percentage). PDF tools, image tools, AI writing helpers, and social media utilities follow over the next few weeks. Eventually 120+ tools across 10 categories.

Get in touch

Found a bug? Want a tool we don't have yet? Reach us on the contact page.