Fusion links directly to your GitHub repos and learns your design system and APIs, then uses AI to generate and visually edit production-ready UI code in place. It opens a branch, pushes a PR, and spins up a live preview for every change.
Hi all! I'm Steve, co-founder and CEO of Builder.io
We're excited to launch Fusion - the first vibe coding tool that integrates directly with your existing codebase, design system, and workflows.
Current AI coding tools force a trade-off: either powerful but dev-only, or easy to use for anyone but can't work with real codebases at scale. We wanted both.
Quick tutorial to get started:
Connect your GitHub repository (or start fresh with a prompt)
Import your Figma designs or describe what you want to build
Watch as Fusion generates code using your actual design system
Edit visually with a Figma-like editor, but with full code precision
Create PRs that your dev team can review and ship
What excites me most is seeing designers finally control how their work looks in production, PMs shipping changes without waiting for dev cycles, and developers focusing on logic while AI handles the visual implementation.
Fusion launched on Product Hunt on June 18th, 2025 and earned 311 upvotes and 27 comments, placing #4 on the daily leaderboard. Fusion links directly to your GitHub repos and learns your design system and APIs, then uses AI to generate and visually edit production-ready UI code in place. It opens a branch, pushes a PR, and spins up a live preview for every change.
On the analytics side, Fusion competes within Design Tools, Developer Tools and Artificial Intelligence — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Fusion performed against the three products that launched closest to it on the same day.
Who hunted Fusion?
Fusion was hunted by Lindsay Brunner. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Lindsay Brunner
Hi all! I'm Steve, co-founder and CEO of Builder.io
We're excited to launch Fusion - the first vibe coding tool that integrates directly with your existing codebase, design system, and workflows.
Current AI coding tools force a trade-off: either powerful but dev-only, or easy to use for anyone but can't work with real codebases at scale. We wanted both.
Quick tutorial to get started:
Connect your GitHub repository (or start fresh with a prompt)
Import your Figma designs or describe what you want to build
Watch as Fusion generates code using your actual design system
Edit visually with a Figma-like editor, but with full code precision
Create PRs that your dev team can review and ship
What excites me most is seeing designers finally control how their work looks in production, PMs shipping changes without waiting for dev cycles, and developers focusing on logic while AI handles the visual implementation.
See the full announcement and demos: builder.io/blog/introducing-fusion
We would love to hear how it works for your team!