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

Projects using FlatLaf

• NetBeans 11.3
• jclasslib bytecode viewer 5.5
• KeyStore Explorer 5.4.3
• OWASP Zed Attack Proxy (ZAP) (in weekly releases)
• XMLmind XML Editor 9.3 (commercial)
• Total Validator 15 (commercial)
• j-lawyer
• MegaMek v0.47.4 and MekHQ v0.47.5
• GUIslice Builder 0.13.b024
• Rest Suite
• ControllerBuddy
• SpringRemote
• mendelson AS2, AS4 and OFTP2 (open-source) and mendelson AS2, AS4 and OFTP2 (commercial)
• MeteoInfo 2.1.6
• lsfusion platform
• and more...

Buzz

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

Documentation

For more information and documentation visit FlatLaf Home