The IntelliJ IDEA plugins worth a look are third-party add-ons that fix everyday irritations: colour-coded brackets, a code minimap, more Git detail, shortcut reminders and code checks in the editor. The eleven below are listed in no particular order, with downloads, ratings and update dates from the JetBrains plugin repository as of Oct 2026.
IntelliJ IDEA's got a lot built in, but plugins are where you shape it to how you work. A good plugin saves you small moments over and over, and they're the moments that add up.
These are eleven third-party plugins, chosen by their all-time downloads in the JetBrains plugin repository, each doing a different job. If you want another way to speed up your work, my AI prompts for code review go beyond the IDE.
How I chose these plugins
I sorted third-party plugins by all-time downloads in the JetBrains plugin repository and kept eleven that each do a different job. For each one I noted the downloads, the rating out of 5, the number of rating votes and the last update date, all as of Oct 2026. The last column says Yes where the repository labels a plugin free, and Not stated where it doesn't.
| Tool | Type | Good for | Free plan |
|---|---|---|---|
| CheckStyle-IDEA | Code style checker | Checkstyle scans of Java files inside the IDE | Yes |
| CodeGlance Pro | Code minimap | A zoomed-out minimap of the file beside the editor | Yes |
| CSV Editor | File editor | Editing CSV files as a colour-coded table or text | Yes |
| GitToolBox | Git add-on | Ahead and behind counts and uncommitted changes in view | Not stated |
| Key Promoter X | Shortcut trainer | Learning keyboard shortcuts while you work | Yes |
| MavenHelper | Maven tool | Finding and excluding conflicting Maven dependencies | Yes |
| MyBatisX | MyBatis helper | Jumping between mapper interfaces and XML files | Yes |
| plantuml4idea | Diagram tool | PlantUML diagrams with code navigation and highlighting | Yes |
| Rainbow Brackets | Editor colouring | Colour-coding nested brackets so pairs are easy to match | Not stated |
| SonarQube for IDE | Code analysis | Static analysis for code quality and security issues | Yes |
| Translation | Language tool | Translating text with several engines inside the IDE | Yes |
Eleven IntelliJ plugins for everyday coding
CheckStyle-IDEA
Best for: Java teams enforcing a Checkstyle setup, with real-time and on-demand scans of Java files; 7,169,495 downloads and 4.2, as of Oct 2026.
CodeGlance Pro
Best for: Long files, where a minimap like the one in Sublime lets you scroll quickly to the part you need; 4,686,404 downloads and 4.9 from 110 votes, as of Oct 2026.
CSV Editor
Best for: Anyone who opens CSV files in the IDE and wants a table view with validation and highlighting; 13,686,534 downloads and 4.5 from 87 votes, as of Oct 2026.
GitToolBox
Best for: Developers who want more Git detail in view, such as commits ahead or behind and uncommitted changes; 10,691,671 downloads and 4.6 from 146 votes, as of Oct 2026.
Key Promoter X
Best for: Mouse users who want to learn shortcuts, since it shows the key combination when you click a button instead; 8,258,799 downloads and 4.9, as of Oct 2026.
MavenHelper
Best for: Maven projects with dependency clashes, plus quick ways to run or debug goals for a module; 6,291,188 downloads and 4.9 from 73 votes, as of Oct 2026.
MyBatisX
Best for: Java developers on MyBatis who jump between mapper and XML files and want auto prompts; 5,542,387 downloads and 4.7 from 124 votes, as of Oct 2026.
plantuml4idea
Best for: Writing UML diagrams as text, with code navigation and highlighting for PlantUML files; 5,074,650 downloads and 4.6 from 103 votes, as of Oct 2026.
Rainbow Brackets
Best for: Deeply nested code, where colour-coded round, square, curly and angle brackets show which pair is which; 25,142,102 downloads and 4.6 from 604 votes, as of Oct 2026.
SonarQube for IDE
Best for: Spotting code quality and security issues in the editor, from the plugin formerly called SonarLint; 16,102,562 downloads and 4.1 from 159 votes, as of Oct 2026.
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Translation
Best for: Working with comments or text in another language, using engines such as Microsoft Translator and Google Translate; 10,898,108 downloads and 4.9 from 286 votes, as of Oct 2026.
Downloads and rating votes tell different stories
Here's the catch. Key Promoter X has 704 rating votes on 8,258,799 downloads, while CheckStyle-IDEA has just 33 votes on 7,169,495 downloads, as of Oct 2026. That's similar reach, yet far more people have bothered to rate one than the other.
So a high rating on a handful of votes tells you less than you'd think. Downloads show how many people have tried a plugin over the years, and the update date shows whether someone's still looking after it. Every plugin here had an update during 2026, the oldest on May 15, 2026.
Which plugin for which problem
- You lose track of nested brackets: pick a bracket colouring plugin.
- You still reach for the mouse: pick a shortcut trainer and let it nag you for a fortnight.
- You want cleaner code before review: pick a static analysis or style checking plugin, and agree the rules with your team first.
- You live in Git: pick a Git add-on that shows more of your branch status in view.
- You work with data files or diagrams: pick a CSV editor or a PlantUML plugin rather than switching apps.
- Your Java project uses Maven or MyBatis: pick the helper built for that framework.
Keep the IDE quick while you add plugins
- Add one plugin at a time, so you know which one changed things if the IDE slows down.
- Check the last update date before installing, and skip anything that hasn't kept up with your IDE version.
- Switch off plugins you haven't used in a month from the Plugins settings.
- Share a short list with your team, so everyone's editor behaves the same way during code review.
Do you make an IntelliJ plugin? Tool makers can ask to be considered for a featured place on this list.
My plain advice on IntelliJ IDEA plugins
Install the two or three plugins that fix something you notice every day, and leave the rest. Bracket colouring, shortcut and Git plugins tend to pay off quickest because you see them all the time. Then glance at the update dates now and then, because a plugin nobody's maintaining is the one that'll break after an IDE update.
If you're also weighing up AI help in the editor, my guide on how to use OpenAI Codex picks up where this list stops.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
What are the most downloaded IntelliJ IDEA plugins?
Among the third-party plugins here, the bracket colouring plugin leads with over 25 million downloads in the JetBrains plugin repository as of Oct 2026, followed by the SonarQube plugin with over 16 million.
Are IntelliJ plugins free?
Many are. Nine of the eleven here carry a free label in the JetBrains plugin repository as of Oct 2026. For the other two, the free plan column says Not stated.
How do I install a plugin in IntelliJ IDEA?
Open Settings, choose Plugins, search for the plugin by name and click Install. Some plugins ask you to restart the IDE afterwards.
Do too many plugins slow IntelliJ down?
They can. Every plugin adds work for the IDE, so keep the ones you'll use and switch the rest off.
Does a high rating mean a plugin is better?
Not on its own. Some plugins have a 4.9 from a few dozen votes, so it's worth looking at the vote count and the last update date as well as the score.
