Code Scroll

Oh, just another code minimap for JetBrains IDEs.

Installation · Using the Minimap · Settings · Building

Code Scroll adds a minimap to the editors of JetBrains IDEs. It shows the whole file in syntax colors next to the code, marks errors, changes and bookmarks on it, and lets you scroll by dragging the frame that shows where you are. It works in IntelliJ IDEA, WebStorm, Rider, Android Studio and other IDEs from version 2026.2.

Installation

Open Settings | Plugins | Marketplace, search for Code Scroll and click Install. The plugin is also on JetBrains Marketplace, where Install to IDE sends it to a running IDE.

To try a build of your own (see Building), open Settings | Plugins, click the gear icon, choose Install Plugin from Disk and pick build/distributions/code-scroll-<version>.zip.

Using the Minimap

Drag the frame to scroll the editor. When you press anywhere else on the map, the frame jumps there and keeps following the mouse while you hold the button. Hold Shift while clicking to extend the selection to that line, and use the mouse wheel over the map to scroll as in the editor.

Rest the pointer on the map to see the code under it in a popup. To change the map's width, drag its inner edge.

Right-click the map for the options you change most often: fit the whole file, show errors and warnings, keep the caret in place, hide the map in this editor or in all editors. The View menu has three switches: Toggle Code Scroll Minimap for all editors, Code Scroll in This Editor for the current one, and Toggle Code Scroll Diagnostics for error and warning marks. None of them has a default shortcut, so assign one in Settings | Keymap if you use them often.

In Markdown files the map labels headings, and the rendered preview gets its own map. Scrolling with that map also scrolls the source, unless you turn it off. The preview's context menu has a Code Scroll submenu for its map.

Settings

All settings are in Settings | Editor | Code Scroll. Every option has a short explanation under it, and the settings search finds them by name.

Setting	Default	What it does
Appearance
Enable minimap	on	Shows the minimap in editors.
Align left	off	Puts the map on the left side of the editor instead of the right.
Fit to editor height	off	Squeezes the whole file into the map's height. When off, each line keeps a fixed height and the map scrolls with the editor.
Fill editor height	off	With Fit, stretches a short file to the full height.
Syntax colors	on	Draws the code in the colors of the editor's color scheme. When off, the map is one color.
Dim comments	off	Draws comments fainter, so the code stands out.
Render style	CLEAN	CLEAN draws each word as a solid stroke. ACCURATE shapes letters, so capitals and descenders are visible.
Text intensity	70 %	How strongly the text stands out from the background, from 20 to 100 %.
Pixels per line	3	Height of one line on the map when Fit is off, from 1 to 8.
Hide editor scrollbar	off	Hides the editor's own scrollbar while the map is shown.
Width
Automatic width	on	Narrows the map in narrow and split editors.
Lock width	off	Stops the map from being resized by dragging.
Main editors	110 px	Map width in file editors, from 40 to 300 px.
Diff editors	60 px	Map width in diff and merge views.
Preview editors	70 px	Map width in preview editors.
Consoles	60 px	Map width in console output.
Untyped editors	60 px	Map width in editors without a file type.
Rendered Markdown	96 px	Map width in the rendered Markdown preview. You can also drag the map's left edge.
Colors
Viewport	scheme	Fill of the frame that shows the visible part of the file.
Viewport opacity	38	Transparency of the frame fill, from 0 to 255. The frame gets brighter while you hover or drag it.
Viewport border	scheme	Color of the frame's border.
Border opacity	110	Transparency of the border, from 0 to 255.
Border width	0 px	Thickness of the border. At 0 the frame has no border.
Caret line	scheme	Line that marks the caret.
Selection	scheme	Band that marks selected lines.
Marker labels	scheme	Color of TODO, region and other marker labels.
Declaration labels	scheme	Color of class and method labels.
Navigation and Preview
Click timing	DOWN	DOWN moves the frame when you press, UP when you release, NONE only lets you drag the frame.
Click by mouse position	off	Puts the caret at the clicked column, not only on the clicked line.
Scroll only	off	Scrolls the editor without moving the caret or the selection.
Show hover preview	on	Shows the code under the pointer in a popup.
Line numbers in preview	on	Shows line numbers in the popup.
Scroll preview with mouse wheel	off	While the popup is open, the wheel scrolls the popup instead of the editor.
Hover delay	250 ms	How long the pointer rests before the popup appears, from 0 to 2000 ms.
Show only on hover	off	Keeps the map collapsed to a narrow strip until you point at it.
Show quick hide button	on	Adds a × button that hides the map in the current editor.
Rendered Markdown minimap	on	Adds a map to the rendered Markdown preview.
Sync source with Markdown minimap	on	Scrolls the Markdown source when you scroll with the preview's map.
Editors
Main editors	on	Shows the map in file editors.
Diff editors	on	Shows the map in diff and merge views.
Preview editors	on	Shows the map in preview editors.
Consoles	off	Shows the map in console output.
Keep console minimap empty	on	In consoles, draws only the frame, without text.
Untyped editors	off	Shows the map in editors without a file type.
Keep untyped minimap empty	on	In untyped editors, draws only the frame, without text.
Minimum lines	0	Hides the map in files shorter than this. At 0 there is no limit.
Maximum lines	1,000,000	Hides the map in files longer than this.
Keep an empty minimap outside the line limits	off	Instead of hiding the map, shows an empty one you can still drag.
Excluded extensions	ipynb	File extensions without a map, separated by commas.
Update delay	120 ms	How long the map waits after you type before redrawing, from 50 to 2000 ms.
Markers and Highlights
Errors and warnings	on	Marks problems on the outer edge of the map. The two options below choose which ones.
Errors	on	Shows error marks.
Warnings	on	Shows warnings and other inspection results.
Full-line diagnostics	off	Draws error and warning marks across the whole width of the map.
VCS changes	on	Marks added, changed and deleted lines on the edge next to the code.
Bookmarks	on	Marks bookmarked lines.
Breakpoints	on	Marks lines with breakpoints on the edge next to the code.
Occurrences of the selection	on	Highlights every place in the file where the selected text appears.
Search results and usages	on	Highlights find results and highlighted usages.
Full-line other markup	off	Draws the remaining editor highlights across the whole width of the map.
Comment markers	on	Labels comments that contain a marker word or match the marker regex.
Marker words	TODO,FIXME,MARK,region	Words that turn a comment into a label. A word in capitals matches only in capitals. region and MARK count only at the start of a comment.
Marker regex	empty	Your own pattern for marker comments, up to 256 characters, without groups or alternation.
Declarations	on	Labels classes and types, and the methods chosen by the two filters below.
Method names	empty	Methods to label, separated by commas or new lines. * matches any text, ? one character. When empty, no methods are labeled.
Method annotations	empty	Label only methods with these annotations. When empty, the annotation doesn't matter.
Label font size	10	Size of marker and declaration labels, from 6 to 36.

Colors in Light and Dark Themes

A color marked "scheme" in the table comes from the editor's color scheme, so it changes when you switch between a light and a dark theme. You can give each scheme its own minimap colors in Settings | Editor | Color Scheme | Code Scroll. If you tick Custom next to a color in the Code Scroll settings, that color is used in every scheme.

Known Limits

• The map shows document lines, so folded code and soft-wrapped lines take as much room as unfolded ones.
• Class and method labels come from the text of the file, not from the language's code model, so an unusual layout can hide a label or add a wrong one.
• Labels are looked for only in the first megabyte of a file, and lines are drawn up to 512 characters.
• When another plugin already occupies the side of the editor where the map goes, Code Scroll leaves that editor alone.
• The map in the rendered Markdown preview uses an API that JetBrains marks as experimental, so a future IDE version may change it.

Building

You need JDK 25. Build the plugin with:

./gradlew buildPlugin

The zip appears in build/distributions/. To build against an IDE you already have instead of downloading one, add -PlocalIdePath=<path to the IDE>/Contents. To try the plugin in a separate copy of the IDE, run ./gradlew runIde.

License

Code Scroll is released under the MIT License.