Assembla acquires Cornerstone - The #1 MacOS client for Subversion. Learn more.

Cornerstone 3

Subversion client for macOS.

The ultimate Subversion client for Mac. Cornerstone delivers modern diff, merge, branch, blame and audit tools to your SVN projects.


14 day free trial. macOS 10.11+


Version 3.1 Release Notes

SVN Built for Teams

Modern Subversion workflows.


Examine your work and merge others' changes using Cornerstone's dedicated merging strategies.


Sync your data and use Cornerstone's suite of tools to examine every change made by other team members.


Use Cornerstone's sophisticated compare tools to review and log each and every change.

Cornerstone SVN client compare tools are right where you need them. Whether you're reviewing a Subversion commit or inspecting other people's changes, Cornerstone has you covered. With rich syntax highlighting for your favorite languages, comparing SVN files has never been easier.

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Incomparable Comparison

Never miss a change.

Cornerstone's super-powerful compare tools are right where you need them. Whether you're reviewing for a commit or inspecting other people's changes, Cornerstone has you covered. With rich syntax highlighting for your favorite languages, comparing files has never been easier.

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SVN Branching and Merging

Subversion merging for mortals.

Branch-based SVN development doesn't have to be complex and confusing. Cornerstone's dedicated strategies for synchronization, reintegration and cherry picking take the guesswork out of Subversion merging. And the checklist and preview features help prevent unnecessary conflicts before they even happen.

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Past Master

Powerful tools for navigating your project's history.


Perfect for browsing and comparing past versions of individual files, the Timeline View presents revisions on an intuitive timeline. Browse revisions, find branch points and compare versions. And built-in filters help you get there fast.



Your one-stop shop for browsing a project's recent changes, the log view helps you determine your team's progress with all revisions grouped by date in one simple list. Need more details? Expand the list of changes and double-click a file to inspect any modifications.



The who, why, what and when.

Cornerstone's annotations work like magic. Click a block of text to get not just the who, but also the when and the why of the revision that contributed those lines. And blocks are color-coded by author so you'll know who's responsible for what. Annotations also comes with an interactive legend that lets you see not only who has been working on a file, but also unlocks its vital statistics.


All the Gain. None of the Pain.

Take control of version control with
Cornerstone, the gold standard for Subversion on Mac.

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There's More

Everything else. And then some.


The transcript reveals the progress and outcome of operations such as imports, check outs, updates and commits.


Pulling in code, documents or graphics from other sources? Cornerstone's dedicated externals editor makes setting them up a breeze.

Pending Updates

You'll always know how many updates are waiting for you in the repository because Cornerstone shows them right next to your working copy.


Get the most out of Subversion by using Cornerstone's intuitive interface to customize your Subversion configuration.

User Properties

User properties are great for attaching your own stuff to items under version control. With Cornerstone you can add just about anything, including text and files.


Cornerstone's repository browser gives you instant access to the contents of your repository, past and present.

Designed for Mac

Built exclusively for macOS.

App Sandbox

Cornerstone adopts macOS's App Sandbox to keep your stuff safe from malicious software. The result? All the features, none of the risk.

Optimized for Retina

Across the board, Cornerstone looks stunning on both standard- and high-resolution displays.

3rd Party Apps

Cornerstone integrates with your favorite compare and merge tools, including BBEdit, Kaleidoscope and Araxis Merge.

Assembla is the leading cloud provider for Subversion.

No other company hosts more SVN repositories or has more on-staff expertise.
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Thousands and counting.

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And here's what some of them have to say:

Cornerstone has dramatically improved my productivity.

Joel R. Kallman, Oracle America

Director, Software Development

Cornerstone truly is the ultimate Subversion app.
I'd never use anything else.

Dan Counsell, Realmac Software

Makers of RapidWeaver and Typed

I just wanted to say you have an amazing product.

Jeremy Jack, (mt) Media Temple, Inc.

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