Tweeks.io
YC W25San Francisco, US · Founded 2025 · 2 employees · 1 known investors
Tweeks is an AI-powered browser extension that allows users to modify how websites look and behave through natural language descriptions without requiring code. The tool generates custom modifications that run in a sandbox and can be shared across a community of 4,000+ published tweaks.
Also known as NextByte
AI & Machine LearningDeveloper ToolsEnterprise SoftwareHR TechArtificial IntelligenceConsumerAIUnited States of AmericaAmerica / Canada
Founders & leadership· Y Combinator alumni (W25)
Tweeks.io was founded in 2025 by Jason Madeano and Matt Stallone.
JM
Jason MadeanoinCo-FounderJason Madeano is co-founder and CEO of Nextbyte. Previously, he worked as a machine learning engineer at Pinterest on recommendation systems for the home feed, and holds degrees in computer science and brain & cognitive science from MIT.
MS
Matt StalloneinFounder & Chief Humor OfficerMatt Stallone co-founded NextByte and previously led post-training work on foundation language models at IBM Research, including the Granite model series. He holds Master's and Bachelor's degrees in Computer Science and Electrical Engineering from MIT and has published research in machine learning.
Investors · 1
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Frequently asked questions
- What does Tweeks.io do?
- Tweeks is an AI-powered browser extension that allows users to modify how websites look and behave through natural language descriptions without requiring code. The tool generates custom modifications that run in a sandbox and can be shared across a community of 4,000+ published tweaks.
- Who founded Tweeks.io?
- Tweeks.io was founded by Jason Madeano, Matt Stallone in 2025.
- Who are Tweeks.io's investors?
- Tweeks.io's investors include Y Combinator.
- Where is Tweeks.io headquartered?
- Tweeks.io is headquartered in San Francisco, US.