FlatLaf - Flat Look and Feel

FlatLaf is a modern open-source cross-platform Look and Feel for Java Swing desktop applications.

It looks almost flat (no shadows or gradients), clean, simple and elegant. FlatLaf comes with Light, Dark, IntelliJ and Darcula themes, scales on HiDPI displays and runs on Java 8 or newer.

The look is heavily inspired by Darcula and IntelliJ themes from IntelliJ IDEA 2019.2+ and uses almost the same colors and icons.

IntelliJ Platform Themes

FlatLaf can use 3rd party themes created for IntelliJ Platform (see IntelliJ Themes Pack):

Demo

Run demo with java -jar flatlaf-demo-<version>.jar (or double-click it). Requires Java 8 or newer.

Download

FlatLaf binaries are available on JCenter and Maven Central.

If you use Maven or Gradle, add a dependency with following coordinates to your build script:

groupId:     com.formdev
artifactId:  flatlaf
version:     (see button below)

Otherwise download flatlaf-<version>.jar here:

Snapshots

FlatLaf snapshot binaries are available in JFrog Artifactory. To access the latest snapshot, change the FlatLaf version(s) in the dependencies to <version>-SNAPSHOT (e.g. 0.27-SNAPSHOT) and add the repository https://oss.jfrog.org/artifactory/oss-snapshot-local to your build (see Maven and Gradle docs).

Addons

• IntelliJ Themes Pack
• Extras
• SwingX
• JIDE Common Layer

Documentation

For more information and documentation visit FlatLaf Home

Buzz

• What others say about FlatLaf on Twitter
• FlatLaf announcement on Reddit

Projects using FlatLaf

• Apache NetBeans 11.3 - IDE for Java, PHP, HTML and much more
• jclasslib bytecode viewer 5.5
• KeyStore Explorer 5.4.3
• OWASP ZAP 2.10 - the worlds most widely used web app scanner
• JOSM - an extensible editor for OpenStreetMap (requires FlatLaf JOSM plugin)
• jAlbum 21 (commercial) - creates photo album websites
• XMLmind XML Editor 9.3 (commercial)
• Total Validator 15 (commercial) - checks your website
• j-lawyer - Kanzleisoftware
• MegaMek v0.47.4 and MekHQ v0.47.5 - a turn-based sci-fi board game
• GUIslice Builder 0.13.b024 - GUI builder for GUIslice, a lightweight GUI framework for embedded displays
• Rest Suite - Rest API testing
• ControllerBuddy - advanced gamepad mapping software
• SpringRemote - remote Linux SSH connections manager
• jEnTunnel - manage SSH Tunnels made easy
• mendelson AS2, AS4 and OFTP2 (open-source) and mendelson AS2, AS4 and OFTP2 (commercial)
• MeteoInfo 2.2 - GIS and scientific computation environment for meteorological community
• lsfusion platform 4 - information systems development platform
• JPass - password manager with strong encryption
• Jes - Die Java-EÜR
• Mapton 2.0 (source code) - some kind of map application (based on NetBeans platform)
• Pseudo Assembler IDE - IDE for Pseudo-Assembler
• Linotte 3.1 - French programming language created to learn programming
• MEKA 1.9.3 - multi-label classifiers and evaluation procedures using the Weka machine learning framework
• Shutter Encoder 14.2 (source code) - professional video converter and compression tool (screenshots show old look)
• Sound Analysis - analyze sound files in time or frequency domain
• RemoteLight - multifunctional LED control software
• ThunderFocus - Arduino-based telescope focuser
• Novel-Grabber - download novels from any webnovel and lightnovel site
• lectureStudio 4.3.1060 - digitize your lectures with ease
• Android Tool - makes popular adb and fastboot commands easier to use
• and more...