Discuss code with codemarks

Just like Twitter has Tweets, CodeStream uses Codemarks as a unit of conversation.

What is a codemark?

Quite simply, a codemark is a discussion connected to the code. It could be a question, a suggestion, a bug report, or documentation. All of these discussions are saved, anchored to the blocks of code they refer to, so that they can be leveraged in the future. It could be a new developer joining the team, a developer trying to fix a bug in someone else’s code, or even just you trying to remember why you made that change six months ago… whatever the case, CodeStream helps you understand the code by surfacing the discussions in a contextual way.

Codemark Hover

Even as a file changes over time, the codemarks will remain connected to the code. Add some new lines of code above the code block, make edits to the code, or even cut-and-paste the entire block to a different section of the file, and you’ll see the codemark move right along with the changes.

Creating a codemark

Create a codemark by selecting a block of code in your editor and then clicking on one of the icons that appears to the right of your selection in the "Current File" tab in CodeStream. CodeStream will even automatically mention the teammate that most recently touched that code (although you can, of course, mention any teammate).

New Codemark

Even when the CodeStream pane is closed or not in view, you can create a codemark via the CodeStream options in either the lightbulb or context menus.

Context Menu

Lastly, you can also look for the blue "+" button that persists at the bottom-right of the CodeStream pane.

Need to reach teammates that don’t spend a lot of time in the IDE? Or maybe some teammates that aren’t yet on CodeStream? You can optionally share a codemark out to Slack or Microsoft Teams. The Slack integration even allows your teammates to reply directly from Slack.

Share on Slack or Teams

Comment Codemarks

The all-purpose codemark for linking any type of discussion to a block of code. Ask a question. Make a suggestion. Document some code. Make note of key sections of the codebase. The possibilities are endless!

Comment Codemark

Issue Codemarks

When something needs to get done there’s always a better chance of it happening if it’s captured as an issue, with someone’s name attached. Assign issues as a way of providing informal code review. Or manage your tech debt by capturing items as tracked issues instead of inline FIXMEs.

Issue Codemark

CodeStream integrates with issue-tracking services such as Jira, Trello, GitHub, and others so you can create an issue on one of those services directly from CodeStream. Learn more about CodeStream's issue-tracking integrations.

Bringing the right people into the discussion

When you create a codemark, CodeStream automatically mentions the people that most recently touched of the code you are commenting on. They may be the best people to answer your question, but you can, of course, remove those mentions and manually mention someone else if appropriate.

Auto Mention

It may be the case that the people that have touched the code aren't yet on CodeStream, in which case CodeStream will provide checkboxes to have them notified via email. They can simply reply to the email to have their comment posted to CodeStream, and of course they can install CodeStream to participate from their IDE.

Invitee Mention

Different versions of the code?

Maybe you’re on a feature branch, have local changes, or simply haven’t pulled in a while. There are countless reasons why the code you’re looking at might be different than what a teammate is looking at, and as a result, there will be plenty of times when the code referenced in a codemark doesn’t match what you have locally.

CodeStream recognizes these situations and gives you the ability to view the code block as a diff against your version of the code (see “Compare” button), or you can use the “Apply” button to apply the code block in your editor.

Compare and Apply

Keep in mind that with CodeStream you can discuss any line of code, in any source file, at any time, even if it’s code that you just typed into your editor and haven’t yet saved or committed. Discussing code early and often, even code fresh off of your fingertips, can take a lot of the pain out of your code reviews/pull requests. CodeStream makes this possible by allowing you to get feedback from your teammates without having to go through a formal process.

How are codemarks discovered?

Your teammates will get notified about new codemarks via the activity feed, and potentially via email and desktop notifications, or sharing on Slack or Microsoft Teams. CodeStream also makes sure the right developer sees past discussions at the right time by displaying them right alongside the blocks of code they refer to.


Seeing codemarks related to the files you’re working on is how you’ll leverage your team’s knowledge base on an ongoing basis. Note the icons in the special gutter at the left side of the editor. These allow you to know where discussions about code took place, even when the CodeStream pane is closed. Just click to view the discussion.