Developer Toolkit

Small tools for
real web work.

Convert images, generate favicons, write legal pages, package your SEO metadata and more.

Your files never leave this tab. Everything stays on your device.

Image Converter & Optimizer

Convert images between formats and optimize file size — all in the browser.

Icons & Favicons

Favicon & App Icon Generator

Generate all favicon and app icon sizes from a single image.

Legal

Cookie Consent Builder

Design a branded cookie banner and export a complete consent solution.

Legal

Legal Pages Generator

Generate privacy policy, terms of service, and other legal pages.

SEO

SEO Package Generator

Generate meta tags, Open Graph, Twitter Cards, and JSON-LD in one go.

Audit

Color Contrast Checker

Check a foreground and background color against WCAG AA and AAA contrast requirements.

SEO

Open Graph Image Generator

Design a social share image with a title, background, and logo for any page.

AI Component Prompt Generator

Turn a component brief into a clear prompt for AI coding tools.

Audit

Website Launch Checklist

Check the SEO, performance, accessibility, and legal basics before you launch.

FAQ

Common questions

Are the tools free to use?

Yes. Every tool here is free, with no usage limits, no sign-up wall, and no paid tier.

Do my files ever leave my browser?

No. Everything runs locally with the Canvas, File, and Blob APIs, so nothing gets uploaded anywhere.

Do I need to create an account?

No account, no login, no email. Open a tool and start using it.

Which browsers are supported?

Current Chrome, Firefox, Safari, or Edge. A few tools lean on newer browser APIs, so older browsers might be missing some features.

Can I use the generated legal pages commercially?

Yes, you can use them in commercial projects. Treat them as a starting point, not legal advice, and have a lawyer look over anything customer-facing before you ship it.

Will more developer tools be added?

Yes. New tools get added whenever a real workflow need comes up.

Can I suggest a new tool?

Yes, email your suggestion to mateo.rumac@gmail.com.

Why build another developer tools site?

Most tool sites bury a simple task under ads, uploads, and tracking scripts. This one just does the job, locally, without the noise.

Small tools forreal web work.

Tools