# OpenMarkdown — local-first Markdown editor for you and your agent > A feather-light, local-first Markdown editor built for you and your agent. [OpenMarkdown](https://openmarkdown.dev/#top) ## Feather-light. Light-speed. A local-first Markdown editor **built for you and your agent**. [Download](https://openmarkdown.dev/#download) [View on GitHub](https://github.com/OpenMarkdown-dev/OpenMarkdown-releases) free · rust-core · no account [▲ #5 Product of the Day on Product Hunt](https://www.producthunt.com/products/openmarkdown) [Try the demo in your browser](https://openmarkdown.dev/demo) [More Markdown syntax →](https://openmarkdown.dev/docs/reference/markdown/) ### Catch your idea before it slips. An idea gives you about five seconds. OpenMarkdown takes less than one. \< 1s cold start (P50) 0.2s click → window .md plain files, no lock-in A native Rust core: the window is there before you let go of the mouse. what’s new ### Unlocks agent-native collaboration. You and your agent, **on the same page. Literally.** ### The enter key shouldn’t fire before you’re done. A real prompt shouldn’t live in a one-line box — point `$EDITOR` at OpenMarkdown, write it like a document, **hand your agent the finished thing.** No undo, no drafts, no half-sent prompts. *Press Ctrl+G in your coding agent; the prompt opens in OpenMarkdown; press Done and it's filled back into the terminal* #### Your Agent. No AI inside. That’s the point. It runs on **the agent you already have.** [Connect your agent →](https://openmarkdown.dev/docs/start/connect/) #### Your File. Local-first means every note stays a plain `.md` on your disk. - no database - no lock-in #### Your Memory. The file is the memory. Agents change; **your knowledge doesn’t.** - persistent - portable ### Your notes, worked on together. Your agent runs in a terminal tab **right in the sidebar** — the one you installed. It reads, finds and writes on the page you’re looking at. No AI ships inside OpenMarkdown. Terminal and intercom: macOS and Linux. Find #### Ask, don’t hunt. Ask where something is. Your agent opens the right note and takes you to the heading — you read your own words, not a summary. *You ask what you decided about the launch date; your agent opens the meeting note and scrolls to its Decisions heading* Read #### Show, don’t paste. Select a passage and ask. Your agent reads **exactly what you selected** and reworks it in place — nothing to copy into a chat box. *A pointer selects a messy list; you ask 'make this a table'; your agent rewrites it as a table, in place* Write #### One section, not the whole file. Ask for a draft under a heading. Only that section changes — the rest of your note stays exactly as you left it. *You ask for an announcement draft; your agent writes it under the Announcement heading and leaves the rest of the note untouched* Co-edit #### Your turn, then its turn. Tick a box or fix a line. Your agent sees the change and picks up from there — no need to explain what you did. *You tick 'Pick the launch date'; your agent notices and writes the next step under it* Talk #### It answers in the sidebar. Type to your agent in the intercom; it replies in a line or two — never its working notes. *You type 'tidy the checklist' in the intercom; your agent replies in a line or two* ### It feels right. Control without leaving the keyboard. #### `cmd`+`p` and you’re there. Skip the file tree. Skip the menus. - @jump to any heading - anything fuzzy-find any file - >run any command #### One tap. Three modes. One key cycles all three — live preview, plain source, clean reading. Markers render as you type; your cursor enters an element and it snaps back to source. Every marker visible, syntax-coloured, one size. True plain text for commit messages and prompts. No cursor, no markers, just the page. ##### Just Markdown files Byte-for-byte. OpenMarkdown never reflows, trims, or reformats your text — open and close, the file is unchanged. ##### Safe by default Delete moves files to the system Trash. Autosave when you pause, without nagging. Tabs, folder, and cursor come back after a crash. ##### No account, no cloud No telemetry, nothing phones home. Your agent reads the same file on the same disk — no third party in between. ##### The keys you already know Standard Mac shortcuts — and ⌘P opens a palette for every command. [Full list →](https://openmarkdown.dev/docs/reference/shortcuts/) ##### 中文 · 日本語 · English Full trilingual UI. Missing your language? [Open a discussion.](https://github.com/OpenMarkdown-dev/OpenMarkdown-releases/discussions) ##### The `openmd` CLI Open files from your terminal. Install it in one click from Settings. ### Open .md with OpenMarkdown. [Download OpenMarkdown](https://github.com/OpenMarkdown-dev/OpenMarkdown-releases/releases/latest/download/OpenMarkdown.dmg) [macOS Apple Silicon & Intel](https://github.com/OpenMarkdown-dev/OpenMarkdown-releases/releases/latest/download/OpenMarkdown.dmg) [Windows x64 · note-only](https://github.com/OpenMarkdown-dev/OpenMarkdown-releases/releases/latest/download/OpenMarkdown-setup.exe) [Linux AppImage · x64](https://github.com/OpenMarkdown-dev/OpenMarkdown-releases/releases/latest/download/OpenMarkdown.AppImage) Mainland China mirror · 中国大陆镜像 — [macOS](https://openmarkdown-dl.oss-cn-hongkong.aliyuncs.com/latest/OpenMarkdown.dmg) · [Windows](https://openmarkdown-dl.oss-cn-hongkong.aliyuncs.com/latest/OpenMarkdown-setup.exe) · [Linux](https://openmarkdown-dl.oss-cn-hongkong.aliyuncs.com/latest/OpenMarkdown.AppImage) macOS (universal, signed & notarized) · Windows (x64) · Linux (AppImage). Agent co-editing runs on macOS and Linux today; the Windows app is a native editor with it coming soon. On Windows and want agent co-editing now? Run the Linux build under [WSL](https://learn.microsoft.com/windows/wsl/install). Weighing it up? [See how it compares](https://openmarkdown.dev/compare/) · [FAQ](https://openmarkdown.dev/faq) ### Like OpenMarkdown? It’s free, and it stays free. If it earns a place in your day, you can back it. [Support OpenMarkdown →](https://openmarkdown.dev/support)