DevKit is a collection of 26 free developer tools — all running 100% client-side in your browser. No signup, no tracking, no data leaves your device.
Tools include: JSON Formatter, Password Generator, Base64 Encoder, UUID Generator, JWT Decoder, Regex Tester, Cron Explainer, Color Converter, CSS Gradient Generator, Chmod Calculator, Markdown Preview, Text Diff Checker, and 14 more.
Built with React, TypeScript, and Tailwind CSS. Hosted on Cloudflare Pages.
When you're optimizing images for websites, landing pages, or e-commerce what's your go-to output format?
WebP smaller files, great browser support now
JPG the reliable classic
PNG when you need transparency
AVIF the new kid on the block
Something else?
I've been building Tinify (launching tomorrow!) and made the deliberate choice to output WebP and JPG skipping PNG entirely because WebP handles transparency AND compresses way better.
I'm Reka, a web designer and developer running The WOW Studio. I work mostly with Shopify and Webflow stores, so I deal with product images all day, every day.
Here's what kept frustrating me:
Every image optimizer out there follows the same playbook let you compress a few images for free, cap the file size at 5MB, then push you toward a subscription. I get it, businesses need revenue. But it always felt wrong that something as basic as image compression was locked behind monthly fees.
When I started building Tinify, the first big architectural decision was: should image compression happen on a server or in the user's browser?
Most tools (TinyPNG, Compressor.io, etc.) upload your images to a server, compress them there, and send them back. It works, and server-side processing can use more advanced algorithms.
I went the other way 100% client-side processing using the Canvas API and browser-native encoding.
Tinify compresses your images up to 90% smaller. Free, fast, and private. No server uploads — all processing happens in your browser. Handle files up to 25MB and batch-process 20 images at once. No signup, no credit card, no BS. Most tools cap you at 5MB and push you to pay — we don't.
