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MDedit
What it is
MDedit is a free, MIT-licensed Markdown editor for Linux, macOS, Windows, and the web. Built with Tauri, it combines source editing, live preview, and native local-file handling. Its tabbed workspace keeps synchronized Edit, Split, and Preview modes, with independent editing state for each open document. Markdown support includes GitHub-flavored syntax, task lists, tables, footnotes, callouts, and syntax highlighting, plus Mermaid diagrams and KaTeX math. Per-document find and replace offers match-case, whole-word, and regular-expression options, alongside formatting shortcuts and automatic list continuation. Documents can be exported as HTML, PNG, PDF, CSV, or SVG. The project says there are no accounts, telemetry, uploads, or server-side rendering, and files remain local. Desktop recovery snapshots can restore tabs and workspace state after shutdowns. Browser sessions cannot resolve files on disk, and imported attachments are limited to 20 MiB each. Desktop builds are unsigned and may trigger operating-system warnings.
For and against
For
- Free MIT-licensed editor
- Synchronized Edit, Split, Preview modes
- Supports Mermaid and KaTeX
- Exports HTML, PNG, PDF, CSV, SVG
- Local recovery snapshots restore workspace
Against
- No cloud sync
- Browser cannot resolve disk Markdown files
- Attachments limited to 20 MiB each
- Unsigned desktop builds may warn
The verdict
MDedit combines substantial Markdown support with local handling, recovery, and many export choices. Its lack of cloud sync and browser file access limits some workflows, while unsigned desktop packages require caution during installation.
Who it suits
It suits people who want an open-source Markdown editor with local files, offline exports, and broad desktop or browser access. It is also useful for users needing diagrams, math, recovery snapshots, and multiple export formats.
Plans and prices
Free
MIT-licensed Markdown editor · offline exports · no account
Read 11 Oct 2026 · github.com
On the record
- Attachment limit
- Desktop-imported attachments are limited to 20 MiB each.github.com · read 11 Oct 2026
- Browser limitation
- Browser-only sessions cannot resolve Markdown files on disk.github.com · read 11 Oct 2026
- Build warning
- The listed desktop builds are unsigned, so the operating system may show a warning.github.com · read 11 Oct 2026
- Cloud sync
- Nogithub.com · read 20 Sep 2026
- Diagrams and math
- It supports Mermaid diagrams and KaTeX math.github.com · read 11 Oct 2026
- Distribution caveat
- The project states that its desktop builds are unsigned and may trigger an operating-system warning.github.com · read 11 Oct 2026
- Downloads
- The README lists Windows x64, macOS Apple silicon, and Ubuntu/Debian x64 desktop downloads.github.com · read 11 Oct 2026
- Editing modes
- It offers synchronized Edit, Split, and Preview modes in a tabbed workspace.github.com · read 11 Oct 2026
- Editing tools
- It includes per-document find and replace with match-case, whole-word, and regular-expression modes, plus formatting shortcuts and automatic list continuation.github.com · read 11 Oct 2026
- Export formats
- HTML,PNG,PDF,CSV,SVGgithub.com · read 20 Sep 2026
- Exports
- It can export HTML, PNG, PDF, CSV, and SVG.github.com · read 11 Oct 2026
- Filesystem permissions
- Desktop exports use a native save dialog that grants write access only to the selected destination, and document saves use validated Rust commands.github.com · read 11 Oct 2026
- Integrations
- The README describes local Markdown-file handling and desktop image and attachment imports; it does not list third-party service integrations.github.com · read 11 Oct 2026
- License
- MDedit is licensed under the MIT License.github.com · read 11 Oct 2026
- Local file support
- Yesgithub.com · read 20 Sep 2026
- Local privacy
- The project says MDedit has no account, telemetry, document upload, or server-side rendering, and documents remain local.github.com · read 11 Oct 2026
- Local recovery
- The desktop app stores recovery snapshots locally and restores open tabs and workspace state after an unexpected shutdown.github.com · read 11 Oct 2026
- Markdown features
- It supports GitHub-flavored Markdown, task lists, tables, footnotes, callouts, syntax highlighting, Mermaid diagrams, and KaTeX math.github.com · read 11 Oct 2026
