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Arcline
Open-source diagram canvas you and your agent edit together.
Arcline is a friendly, local-first diagram canvas for architecture and flow diagrams. Draw by hand, write diagrams as code with Mermaid, D2, Structurizr or OpenFlow DSL, or hand the canvas to your AI agent over MCP. Claude Code, Cursor, VS Code and Codex can read and edit the same document — every change is one undo step. No account, no cloud. Free and open source.
Hey Product Hunt 👋 I built Arcline because diagrams and code keep drifting apart. Here you can sketch it, write it as code, or let your agent edit it — all on one local-first canvas. No account, no uploads, MIT licensed. Happy to answer anything!
About Arcline on Product Hunt
“Open-source diagram canvas you and your agent edit together.”
Arcline was submitted on Product Hunt and earned 15 upvotes and 5 comments, placing #40 on the daily leaderboard. Arcline is a friendly, local-first diagram canvas for architecture and flow diagrams. Draw by hand, write diagrams as code with Mermaid, D2, Structurizr or OpenFlow DSL, or hand the canvas to your AI agent over MCP. Claude Code, Cursor, VS Code and Codex can read and edit the same document — every change is one undo step. No account, no cloud. Free and open source.
On the analytics side, Arcline competes within Open Source and GitHub — topics that collectively have 110.6k followers on Product Hunt. The dashboard above tracks how Arcline performed against the three products that launched closest to it on the same day.
Who hunted Arcline?
Arcline was hunted by Mohit Khushalani. 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 Arcline including community comment highlights and product details, visit the product overview.
Mohit Khushalani
Hey Product Hunt 👋 I built Arcline because diagrams and code keep drifting apart. Here you can sketch it, write it as code, or let your agent edit it — all on one local-first canvas. No account, no uploads, MIT licensed. Happy to answer anything!