Made for the things you ship

Free tools for indie developers

Small, practical tools for your next launch. Build documentation, prepare brand assets, and work through recurring revenue estimates in your browser.

README Generator

Create a project README with setup commands, usage, and the context you need when you return.

Collect your logo, colors, and typography in a downloadable brand kit, entirely in your browser.

Convert a PNG, JPEG, or WebP logo into a multi-size ICO favicon and ready-to-install PNG icons.

Make a 1200 × 630 social preview image for your product and copy Open Graph and Twitter tags.

Calculate MRR, ARR, and recurring revenue movement from monthly and annual subscription inputs.

No account, no uploads, no watermarks. Looking for a home for everything you ship? Explore Sidebox.