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Diffo

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Your agent writes the code, then the conversation ends and you review it alone. Diffo keeps it open: a live diff in your browser. Comment on a line and the session that wrote it answers, and its fix lands in the diff you're reading. Big changes come in layers, in the order to read them. Works on GitHub PRs too: the agent drafts comments, you submit. Not an AI reviewer: no grades, no nitpicks. Works with Claude Code, Cursor, Codex. Local, no account, Apache-2.0. Try it: diffo.io/demo

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PH · launched Oct 14, 2026 · 2 upvotes (top 22%)

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Could you build this?

Yes A browser-based live diff view with inline comments that route to an agent session is a web app over Git and an LLM agent API, though wiring the session loop takes some care.

Competitors

Other products that read as similar to this one : 495 launches clear the similarity bar, closest 8 shown.

Attention rank: #142 of 496 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 349 days after the earliest competitor.

Other launches for this product