Writing & publishing
GrayCat Markdown
A native writing studio with live preview, serious export tools, publishing checks, iCloud documents, and optional AI.
Independently made · Native by design
Quiet tools for work worth keeping.
From Markdown writing to specialist reading, GrayCat is made to respect your files, your time, and your attention.
Native Apple-platform apps
English-first · Chinese available
Available now
Each app has a clear focus.
GrayCat Markdown, KneeDaily, and GrayCat Text are available now, each built to do one job well.
Medical literature
KneeDaily
Curated knee sports-medicine literature, deep reads, PubMed search, and a personal research library.
For professional literature reading—not diagnosis, treatment advice, or clinical decision support.
Plain text
GrayCat Text
Large files, encodings, line endings, logs, and the details a serious text editor should respect.
Planned apps
More tools are on the way.
GrayCat Music, GrayCat PDF, and GrayCat Pix are on the way, with one clear job apiece.
MUS
In development
Local music
GrayCat Music
A calm home for the music files you already own, without requiring a streaming account.
PDF
Planned
Document utility
GrayCat PDF
Reading, OCR, merging, compression, and dependable everyday PDF work performed on your Mac.
PIX
Exploring
Images
GrayCat Pix
A focused place for screenshots, image organization, and lightweight editing.
What to expect
Less interruption. More ownership.
01One job at a time
Start with something you do often, then make the details feel effortless.
02Clear about your data
You can see what stays on your device and what uses iCloud or a network service.
03Files that last
Native system features and common formats help keep today’s files useful tomorrow.