Constly icon
Constly icon

Constly

 11 likes

Constly is a WYSIWYG Markdown editor for macOS, Windows and Linux. It renders Markdown inline as you type - headings, bold, lists, tables, KaTeX math and Mermaid diagrams all appear in place, with the raw marks showing only where your cursor is.

Markdown that renders as you type

Cost / License

  • Freemium (Pay once)
  • Proprietary

Application type

Platforms

  • Mac  macOS 11 or later. Separate downloads for Apple silicon and Intel - pick the one matching your Mac.
  • Windows  64-bit only - no 32-bit or ARM64 build. Requires Windows 10 version 1803 or later, or Windows 11. Installs per-user; no administrator rights needed.
  • Linux  Requires a system WebKitGTK 4.1 and glibc 2.35 or later (Ubuntu 22.04+ or equivalent). Ships as .deb, .rpm and a tarball.
Write naturally without losing your plain-text Markdown
Export your Markdown to multiple document formats
+5
Edit Markdown tables directly in place
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Constly information

  • Developed by

    AU flagRun The Wall

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    One time purchase (perpetual license) that costs $20 + free version with limited functionality.

  • Alternatives

    11 alternatives listed

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  • Supported Languages

    • English

AlternativeTo Categories

Office & Productivity, OS & Utilities, Development

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Constly was added to AlternativeTo by runthewall on and this page was last updated .

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What is Constly?

Constly is a WYSIWYG Markdown editor for macOS, Windows and Linux. It renders Markdown inline as you type - headings, bold, lists, tables, KaTeX math and Mermaid diagrams all appear in place, with the raw marks showing only where your cursor is. It's built on byte-fidelity: plain text is the document and the view is just a projection, so saving touches only the bytes you changed and never reflows or "normalizes" Markdown you didn't edit - your git diffs stay clean.

Free to use with no feature wall, watermark or expiry. After two weeks a weekly reminder says hello, and a one-time $19.99 license (up to 3 devices) retires it. Nothing checks and nothing stops you - if it earns its keep, especially at work, buy one. Native (Rust core, tiny footprint), private by default (no account, no telemetry, remote images gated), fully offline - with Vim mode, focus and typewriter modes, a command palette, local version history, and export to HTML, PDF, Word, ODT, RTF, LaTeX and EPUB.

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