Resomark
Resomark is a native Mac app for editing local Markdown, plain-text, and code files with live preview and file-based organization.
What is Resomark?
Resomark is a native macOS productivity app for working with local Markdown documents, plain-text files, and code files directly from folders on your Mac. It is designed for writers, developers, and documentation-focused workflows that prefer ordinary files instead of a cloud database or proprietary project format. The app combines editing and rendered viewing in one workspace, so you can read and revise Markdown with live preview while keeping files as standard plain text. It also supports folder pinning, sidebar file browsing, Quick Look previews, wiki links, tables, code highlighting, math, diagrams, and local image embeds for richer document work. For Git-tracked files, Resomark can show rendered diffs that help you review changes in context. Resomark is published by Reso Studio Inc. and is available for Mac.
Key features
- Edit local Markdown, plain-text, and code files directly from folders on your Mac
- Preview Markdown live in the same workspace while keeping files as standard plain text
- Browse pinned folders and navigate documents from a focused sidebar
- Review rendered diffs for Git-tracked Markdown files
- Use Quick Look previews for supported documents from Finder-related workflows
- Work with tables, code highlighting, math, diagrams, wiki links, and local image embeds
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
Resomark is a local-first document editor for Mac, so opening files and folders is a normal part of how it works. Its App Store listing says it does not require an account and does not upload documents to its own servers, which is a good fit for local writing and documentation workflows. Like other editors, it can access the files you choose to open, and any changes you save will affect those documents directly. Keep backups for important notes or project files, especially when editing Git-tracked or shared work.
Recommendation: Keep Resomark if you use Markdown, notes, documentation, or local text files on your Mac. If you no longer use it, you can remove the app and then clean up its support files later if you want to free a small amount of space.
Common paths
/Applications/Resomark.app
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