JetBrains' issue tracker
YouTrack is JetBrains' issue tracker, popular with teams already using IntelliJ/PyCharm and other JetBrains tools.
YouTrack has smart search and workflow scripting that's arguably more powerful than Jira's for teams willing to learn its query language, and it integrates naturally if your team already lives in JetBrains IDEs.
Outside the JetBrains ecosystem, YouTrack's git integration is comparable to Jira's default — commit message linking works, but there's no CLI automating branch creation or status transitions from your terminal.
This is really the whole reason Jitly exists — it's not trying to replace YouTrack at what YouTrack is good at. Jitly's job is narrower and more specific: jitly start ABC-123 creates your branch and moves the Jira ticket to In Progress in one shot, jitly done commits, pushes, and updates the status to whatever your team's workflow has, fetched live so it never gets out of sync with how your Jira is actually configured.
Mainly teams already standardized on JetBrains IDEs across the board. If that's not you, this comparison probably isn't that relevant to your day — YouTrack and Jitly solve different problems most of the time.