Introducing Fei. The production grade, vibe coding, autonomous engineer. Designed for teams that build real products. Fei works in your codebase, uses your components, maintains design system and coding standards, delivering real, production grade code.
We built Fei, because engineering and product teams don’t need another prototype generator. They need an AI teammate they can actually trust in production on their code!
While many AI tools generate code, most stop short of delivering code you’d actually merge. Fei works inside your codebase; reusing your components, following your coding standards, and writing code that passes review on the first try.
From Figma designs, Jira tickets, screenshots, or plain text, Fei translates requirements into backend-ready code in minutes, not days. Fei can even help product teams deliver on production ready prototypes, fully contextual to the code base and not slowing down the development cycle.
The result? Shorter development cycles, Scalable output without extra headcount, no compromise on quality or security, and peace of mind. :)
We believe this is the future of software development: agents that aren’t just “helpers,” but true teammates. Ones that know your stack, respect your conventions, and help you scale like never before.
We’ve already seen Fei accelerate dozens of teams across industries, and I couldn’t be more excited to share it with you today.
I would love to hear your feedback, questions, and/or thoughts!
About Fei on Product Hunt
“Production grade vibe coding”
Fei launched on Product Hunt on August 19th, 2025 and earned 287 upvotes and 35 comments, placing #4 on the daily leaderboard. Introducing Fei. The production grade, vibe coding, autonomous engineer. Designed for teams that build real products. Fei works in your codebase, uses your components, maintains design system and coding standards, delivering real, production grade code.
On the analytics side, Fei competes within Artificial Intelligence and Vibe coding — topics that collectively have 466.6k followers on Product Hunt. The dashboard above tracks how Fei performed against the three products that launched closest to it on the same day.
Who hunted Fei?
Fei was hunted by Ben Lang. 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.
Ben Lang
Thank you for supporting us!
We built Fei, because engineering and product teams don’t need another prototype generator.
They need an AI teammate they can actually trust in production on their code!
While many AI tools generate code, most stop short of delivering code you’d actually merge. Fei works inside your codebase; reusing your components, following your coding standards, and writing code that passes review on the first try.
From Figma designs, Jira tickets, screenshots, or plain text, Fei translates requirements into backend-ready code in minutes, not days. Fei can even help product teams deliver on production ready prototypes, fully contextual to the code base and not slowing down the development cycle.
The result? Shorter development cycles, Scalable output without extra headcount, no compromise on quality or security, and peace of mind. :)
We believe this is the future of software development: agents that aren’t just “helpers,” but true teammates. Ones that know your stack, respect your conventions, and help you scale like never before.
We’ve already seen Fei accelerate dozens of teams across industries, and I couldn’t be more excited to share it with you today.
I would love to hear your feedback, questions, and/or thoughts!