Markdown Diff
Compare two Markdown documents and visualize differences. Supports line, word, and character-level diffs plus unified patch format. Powered by the diff npm library.
Complete Guide: Markdown Diff
Everything you need to know about using this tool effectively
The Markdown Diff tool compares two Markdown documents and shows the differences. It supports line-level, word-level, and unified patch diff modes. The tool strips Markdown formatting before comparing so the diff focuses on content changes rather than formatting differences. All processing happens in the browser.
This tool takes two Markdown inputs and runs a diff algorithm to identify additions, removals, and modifications. It can optionally strip Markdown syntax before comparing to focus on content.
Reviewing documentation changes
Compare two versions of a Markdown document to see what was added or modified.
Reviewing pull requests
Diff Markdown files from a pull request to review documentation updates.
Tracking README changes
Compare README versions to see what changed between releases.
Auditing content updates
Diff two Markdown drafts to verify all requested changes were made.
Paste both documents
Enter the original Markdown on the left and the modified Markdown on the right.
Choose diff mode
Select line, word, or unified patch mode.
View the diff
The tool shows differences with color coding.
Enable Markdown stripping to ignore formatting changes and focus on content.
Line diff is the most readable for documentation reviews.
Unified patch mode produces output similar to git diff.
Compare README files across git tags to generate changelog entries.
Can I ignore formatting changes?
Yes. Enable the 'strip Markdown' option to remove formatting syntax before comparing. This focuses the diff on content changes only.
Is my content sent to a server?
No. All comparison happens in your browser. Nothing is transmitted.
What diff modes are available?
Line diff, word diff, and unified patch output.
Can I save the diff?
Yes. Copy the diff to clipboard or download it as a text file.
Does it handle large documents?
Yes. The tool handles documents of any length that fit in browser memory.