SeamDiff
A clean, fast diff viewer
Only for Mac
$9.99
Mac
v0.6 — Git integration is here. Browse history, review staged changes, compare branches, and commit — all without leaving the app.
SeamDiff is a fast, focused diff viewer for macOS — built for developers who need to compare, merge, and review files without the overhead of a full IDE.
• Compare files side by side
Open any two files and see exactly what changed. Syntax highlighting for every major language, smooth scrolling, and a clean interface keep you focused on the differences — not the tool.
• Visual diff gutter
Changed sections are connected by smooth bezier bridges in a dedicated center gutter. Added, removed, and modified blocks are colour-coded and instantly readable. Line numbers sit right next to the content they belong to.
• One-click merge
Hover over any diff block and click the arrow to push changes left or right. Merge individual hunks in any order, undo any merge per side, and save the result directly to disk — without leaving the app.
• Folder diff
Compare entire directories recursively. Filter by modified, added, or removed files and drill into any file with a single click.
• Git integration
Open any Git repository and work with it directly — no terminal required. Three dedicated tabs cover the full day-to-day workflow:
– Status: see staged and unstaged changes side by side. Stage or unstage individual files, write a commit message, and commit with an optional push. A console shows the exact git output after every operation.
– Compare: pick any two branches, tags, or commits and get a full file-by-file diff. Click any file to open the before-and-after diff in Monaco.
– History: the full commit log across all branches with a colour-coded branch graph, ref chips, and PR badges. Click any commit to see its changed files, then drill into any file for the full diff.
• Drag and drop
Drop files or folders directly onto the window to load them instantly — no file pickers, no menus.
• Change map
The scrollbar track shows a full-file overview of all changes so you always know where you are in a large diff.
No subscriptions. No cloud. Your files never leave your machine.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 0.6 brings full Git integration — the most-requested feature since launch.
FIXED
Open git folder dialog
GIT STATUS
See your staged and unstaged changes at a glance. Stage or unstage individual files with one click. Write a commit message and commit — with an option to push immediately. A console panel shows the exact git output after every operation so nothing is hidden.
GIT COMPARE
Pick any two branches, tags, or commits and get a full file-by-file diff. Every changed file is listed with its status. Click any file to open the before-and-after in the Monaco diff editor.
GIT HISTORY
Browse the complete commit log across all branches. A colour-coded branch graph tracks merges and forks visually. Commits show ref chips (HEAD, branches, remotes, tags) and badges for PR merge commits. Click any commit to see its changed files — click any file for the full diff.
All git output runs locally. No tokens, no accounts, no network requests.
The developer, Ihor Kuzyk, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ihor Kuzyk
- Size
- 8.4 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 10.13.0 or later.
- Mac
Requires macOS 10.13.0 or later.
- Mac
- Age Rating
4+
- 4+
- Copyright
- © Webeard

