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Writing and publishing

GrayCat Markdown

Mac, iPhone, iPad

Write in Visual or Markdown source on Mac, preview your layout, and export to Word, PDF, and HTML. Keep documents in local folders or iCloud.

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Mac download DMG · 6.7 MB

3.0.0 (363) macOS 26.0+ · Apple silicon Signed with Developer ID · Notarized by Apple · Automatic updates

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For Intel Macs or earlier macOS versions: Download legacy 2.6.0 (324) · macOS 12+ · Apple silicon + Intel · SHA-256

App Store

Mac, iPhone, iPad Download and update on the App Store

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Plain-text editing

GrayCat Text

Mac

Edit plain-text files while preserving their encoding and line endings, with log viewing, search, comparison, and recovery. Very large files open as read-only previews.

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Mac download DMG · 5.9 MB

1.0.1 (53) macOS 14.0+ · Apple silicon + Intel Signed with Developer ID · Notarized by Apple · Automatic updates

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App Store

Mac Current App Store version 1.0.1 Download and update on the App Store

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Local music library

GraycatTunes

Mac

Play and organize your own music files on your Mac—no streaming account required.

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Mac download DMG · 4.8 MB

1.0.0 (23) macOS 14.0+ · Apple silicon + Intel Signed with Developer ID · Notarized by Apple · Updates downloaded manually

Download for Mac View SHA-256 checksum

App Store

Mac Current App Store version 1.0 Download and update on the App Store

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PDF tools

GrayCat PDF

Mac

Read original and translated pages side by side, with tools for OCR, merging, compression, annotations, signatures, and export.

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Mac download DMG · 3.2 MB

1.0.2 (75) macOS 14.0+ · Apple silicon + Intel Signed with Developer ID · Notarized by Apple · Updates downloaded manually

Download for Mac View SHA-256 checksum

App Store

Mac Current App Store version 1.0.1 Download and update on the App Store

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Knee sports-medicine literature

KneeDaily

iPhone, iPad

Follow knee sports-medicine research in English or Chinese. Read published book chapters, search PubMed, and keep your papers, reading notes, and imported books together.

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App Store

iPhone, iPad Current App Store version 2.0.0 Download and update on the App Store

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Install and update

Open the DMG and drag the app to Applications. macOS verifies its signature and notarization the first time it opens.
A SHA-256 checksum is available beside every direct Mac download.
The direct editions of GrayCat Markdown and GrayCat Text include automatic updates. Direct editions of GraycatTunes and GrayCat PDF are updated by downloading the latest version from this page.
All App Store editions are installed and updated through the App Store.

Download milestones show starts from graycat.app, not installations. Read the website privacy notice for details.

If you have trouble installing or updating, visit GrayCat support.