Coding agent can create huge code diffs. Someone still has to read it. seendiff is a local diff tool for large changes. Track what you've seen, review in chunks, and pull the coding agent in to explain its own work.
1. Go through the painful review process, or 2. Go YOLO mode and commit without reviews.
If you care about maintenance of your codebase you will want to go through the pains review your code.
Most code diff tools today were built for the past world - but AI scale of code is different.
So I built seendiff - to scratch my own itch. It: 1. Automatically keeps track of what code you've seen in a diff 2. Keeps track of manually reviewed code blocks. 3. Integrates a code walkthrough that lets your AI walk you through the code 4. Other nifty features that matter - local global search, minimap etc.
What does your agentic code review process look like?
About seendiff on Product Hunt
“Code diff viewer with progress tracking”
seendiff launched on Product Hunt on August 29th, 2026 and earned 133 upvotes and 6 comments, placing #4 on the daily leaderboard. Coding agent can create huge code diffs. Someone still has to read it. seendiff is a local diff tool for large changes. Track what you've seen, review in chunks, and pull the coding agent in to explain its own work.
On the analytics side, seendiff competes within Open Source, Software Engineering and GitHub — topics that collectively have 153.1k followers on Product Hunt. The dashboard above tracks how seendiff performed against the three products that launched closest to it on the same day.
Who hunted seendiff?
seendiff was hunted by fmerian. 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 seendiff including community comment highlights and product details, visit the product overview.
fmerian
Hey Product Hunt 👋
AI code is difficult to review.
So you have two options:
1. Go through the painful review process, or
2. Go YOLO mode and commit without reviews.
If you care about maintenance of your codebase you will want to go through the pains review your code.
Most code diff tools today were built for the past world - but AI scale of code is different.
So I built seendiff - to scratch my own itch. It:
1. Automatically keeps track of what code you've seen in a diff
2. Keeps track of manually reviewed code blocks.
3. Integrates a code walkthrough that lets your AI walk you through the code
4. Other nifty features that matter - local global search, minimap etc.
Im putting it up at https://seendiff.com in case its useful to someone else.
Free. Open source.
What does your agentic code review process look like?