Haystack is the fastest path from pull request to merge. It makes PRs read like a story: changes unfold in order, data flows are traced end-to-end, and caller contexts are surfaced. Even complex code feels simple to review in Haystack!
Hey Product Hunt, Akshay and Jake here — co-founders of Haystack 👋
We built Haystack, an AI-native code review platform that makes pull requests read like a story instead of just a bunch of diffs.
Why? Because most code reviews are jigsaw puzzles. You bounce between files, guess at the author’s intent, and hope you didn’t miss a subtle bug. And now with AI-written code, even the author might not know how the pieces fit together.
Haystack snaps the puzzle into place.
Here’s how it helps:
1. Narrative flow: Changes unfold as a clear story, so your mental model builds naturally.
2. Logic first: Critical changes surface up front; refactors and boilerplate wait at the end.
3. Cross-file context: Trace variables and function calls across files with a single click.
We built Haystack because we’ve experienced code review hell at big companies. There were many times where we would read a pull request at 10am right before standup, again at 2pm between meetings, and finally at 5pm before approving without understanding any of what was changed. We want to change this with Haystack!
👉 Try it out: haystackeditor.com/review. We’ve set up demo pull requests so you can see how it feels on code you’ve never touched before.
We’d love your feedback, ideas, or even stories from your own pull request review nightmares. Fire away!
About Haystack on Product Hunt
“Review pull requests like you wrote them yourself”
Haystack launched on Product Hunt on September 16th, 2025 and earned 116 upvotes and 3 comments, placing #16 on the daily leaderboard. Haystack is the fastest path from pull request to merge. It makes PRs read like a story: changes unfold in order, data flows are traced end-to-end, and caller contexts are surfaced. Even complex code feels simple to review in Haystack!
On the analytics side, Haystack competes within Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how Haystack performed against the three products that launched closest to it on the same day.
Who hunted Haystack?
Haystack was hunted by Akshay Subramaniam. 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.
For a complete overview of Haystack including community comment highlights and product details, visit the product overview.
Akshay Subramaniam