Show HN: OpenMarkdown – A Markdown editor your coding agent edits with you

Category: devtools

Tags: markdown, editor, ai-agents, local-first, desktop-app

Score: 6.5/10 (Innovation: 6, Technical: 6, Documentation: 8, Utility: 6)

OpenMarkdown is a local-first Markdown editor that integrates directly with coding agents (Claude Code, Codex, Gemini CLI, opencode) via an embedded terminal sidebar, letting them open files, read selections, and co-edit sections. It stands out by keeping plain .md files on disk with no account, sync, or telemetry, and shipping no built-in model — it rides on the agent you already use.

Target audience: developers and writers who use coding agents and prefer plain files over knowledge platforms

Repository: https://openmarkdown.dev/ · NOASSERTION · 68 stars

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