Welcome to the world of PlantUml – the ultimate tool to simplify your UML diagramming experience. Created by Arnaud Roques, PlantUml boasts an extensive range of features including intuitive syntax, real-time preview, customizable output and much more. This software stands out as an exceptional choice for anyone looking to create high-quality UML diagrams with ease. Whether you are a developer, architect or simply someone who enjoys diagramming, PlantUml simplifies the process and elevates your experience. So why wait? Download PlantUml today and step up your diagramming game!

PlantUml is a simple, handy component designed to enable developers to quickly create some UML diagram using a simple textual description language. PlantUml sports a clean and intuitive layout that offers only a few configuration settings to tinker with. The tool gives you the possibility to insert the description language in a dedicated pane, or import data from the following file formats: JAVA, HTML, C, CPP, Y, plain text, and others. PlantUml offers an intuitive layout for helping users design UML diagrams via a description language. Of course, if you are not accustomed with writing description language statements, then it may prove to be pretty difficult to carry out the process.

Basically you can use this tool to write: sequence diagram, use case diagram, class diagram, activity diagram, component diagram.

PlantUML is a component that allows to quickly write :

sequence diagram,
use case diagram,
class diagram,
activity diagram,
component diagram,
state diagram
object diagram

Diagrams are defined using a simple and intuitive language.

New Release
Bump org.graalvm.buildtools.native from 0.11.3 to 0.11.4 by @dependabot[bot] in #2487
Bump lodash from 4.17.21 to 4.17.23 in /.github/actions/configure-workflow by @dependabot[bot] in #2488
revert "url" magic string (only for input syntax) by @The-Lum in #2492
Bump org.assertj:assertj-core from 3.27.6 to 3.27.7 by @dependabot[bot] in #2491
Bump gradle/actions from 5.0.0 to 5.0.1 by @dependabot[bot] in #2498
add groups for start and ending state by @fcnjd in #2500
upd CI to publish site on gh-page (and add Jdepend on the libs file by @The-Lum in #2509
allow Timing signals without full-label (similar to clock) by @The-Lum in #2499
group individual states in SVG by @fcnjd in #2511
externalize site/index.html by @The-Lum in #2515
fix font, add plantuml links, add Deepwiki card by @The-Lum in #2516
allow visibility on one-line class by @The-Lum in #2519
add js demo on gh-site by @The-Lum in #2521
put teavm on libs by @The-Lum in #2526
add setup-gradle on CI by @The-Lum in #2528
Packetdiag by @arnaudroques in #2529
allow chart and packetdiag diagrams to be embedded by @The-Lum in #2531
put gorylenko.gradle.git.properties and closure-compiler on libs by @The-Lum in #2540
Bump gradle-wrapper from 9.3.0 to 9.3.1 by @dependabot[bot] in #2504
Bump org.junit.platform:junit-platform-launcher from 6.0.2 to 6.0.3 by @dependabot[bot] in #2533
Bump junit-jupiter from 6.0.2 to 6.0.3 by @dependabot[bot] in #2534
Bump com.google.javascript:closure-compiler from v20260216 to v20260217 by @dependabot[bot] in #2545
move copilot-instructions on the right place by @The-Lum in #2555
Bump teavm from 0.13.0 to 0.13.1 by @dependabot[bot] in #2552
[ PlantUml release history ]

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