Revision Glow How it works

Free for macOS

Review rendered
Markdown diffs.

Review changes to plans, specs, and READMEs as you iterate with a coding agent. Revision Glow highlights edits in formatted Markdown, so you can review each revision without rereading the entire document. Keep editing in Codex, VS Code, or your preferred editor.

Download on the Mac App Store
Rendered diff
Added Removed
Revision Glow reviewing a sample launch brief titled A little room to think. Three changes are highlighted: simple becomes calm, December becomes January, and a table status changes from Draft to Ready. The surrounding headings, paragraphs, list, and table stay formatted.
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How it works

Set a baseline before you or a coding agent edits a document. Review subsequent saves against that snapshot, independent of Git status or commits.

Read-only file access.
No review markup added to your source.

  1. Open a Markdown file

    Choose a local .md file, such as a README, technical spec, or implementation plan.

  2. Set a baseline

    Click Set baseline to capture the displayed version. Continue editing the same file in your editor.

  3. Review saved changes

    Revision Glow refreshes when the file is saved. Inspect the rendered diff, expand Source details for the old and new Markdown, or switch to Clean preview.