Co-founder
Jason Madeano
Former Pinterest engineer who worked on Homefeed relevance and recommendation systems, with BS and MEng from MIT.
We're building software that gives people control of the web again
Tweeks is an AI-powered browser extension from NextByte (Y Combinator W25) that lets you change how any website looks and behaves without writing code.
We started Tweeks because too much of the modern web is fixed around the average user. We think the internet should be more adjustable, more personal, and easier to shape around the way you actually work.
A simpler path than userscripts for most people
Tweeks launched as an AI-native alternative to older userscript managers like Tampermonkey and Greasemonkey. It keeps the flexibility of scripts, but removes the requirement that you understand browser APIs, CSS selectors, or JavaScript just to make a site usable.
Describe a change in plain English, and Tweeks generates and applies it. You can share your tweeks with one click, and you can also install tweeks from the community.
Built by two engineers and tinkerers
Matt and Jason are lifelong tinkerers who met at MIT and both love to build. Tweeks began as a side project born out of the desire to fix annoying parts of the web and gradually grew into something much larger.
Co-founder
Matt Stallone
Former IBM Research engineer who worked on post-training for foundation language models, with BS and MEng from MIT.
How Tweeks works
Tweeks runs lightweight browser modifications that can restyle pages, add features, or change how elements behave. Each tweek runs in a sandbox so your changes stay separate from page code.
What people use it for
The community has published 4k+ tweeks for sites like YouTube, Google, Reddit, Amazon, X, ChatGPT, etc. People use Tweeks to remove distractions, add missing controls, and reshape layouts.
Open and transparent
Every public tweek exposes its source code. We also publish a privacy policy, maintain a public changelog, and share product thinking on the engineering blog.
Start with the library, then make the web yours
Tweeks works across Chrome, Edge, Brave, and Firefox. Browse what the community has already built, or describe your own idea and let the extension generate it for you.