EdgeMark

Open-source macOS side-panel Markdown notes app that slides in from the screen edge, storing plain .md files.

Desktopfree

EdgeMark is an open-source macOS notes app that slides in as a side panel from the screen edge, positioned as an alternative to the paid, closed-source SideNotes. Notes are stored as plain Markdown files with a native WYSIWYG editor, folder organization, and tagging, for Mac users who want a fast, always-available notes panel with data they can inspect and control.

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Behind the summary, Matchbox keeps a richer profile of EdgeMark - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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