☕ Awesome Java

Projects 481–540 of 758, most starred first

• eclipse-birt/birt on GitHub, opens in a new tab

  542stars

  ★ 542 EPL-2.0 🟢Report engine for creating PDF and other formats (DOCX, XLSX, HTML, etc) using Eclipse-based visual editor.

  Java·Eclipse Public License 2.0·active·2 days ago

• gunnarmorling/awesome-annotation-processing on GitHub, opens in a new tab

  540stars

  Other·slowing·2 years ago

• abstracta/jmeter-java-dsl on GitHub, opens in a new tab

  537stars

  ★ 537 Apache-2.0 🟢Load tests with JMeter as simple as a JUnit test.

  Java·Apache License 2.0·active·last week

• threerings/getdown on GitHub, opens in a new tab

  529stars

  ★ 529 🟠System for deploying Java applications to end-user computers and keeping them up to date. Developed as an alternative to Java Web Start.

  Java·Other·steady·3 months ago

• jxlsteam/jxls on GitHub, opens in a new tab

  526stars

  ★ 526 Apache-2.0 🟢Generates Excel reports from spreadsheet templates.

  Java·Apache License 2.0·active·8 hours ago

• elastic/elasticsearch-java on GitHub, opens in a new tab

  522stars

  ★ 522 Apache-2.0 🟢Official typed Java client for Elasticsearch.

  Java·Apache License 2.0·active·4 days ago

• bytemanproject/byteman on GitHub, opens in a new tab

  514stars

  ★ 514 🟢Manipulate bytecode at runtime via DSL (rules); mainly for testing/troubleshooting. (LGPL-2.1-or-later)

  Java·active·2 months ago

• domaframework/doma on GitHub, opens in a new tab

  505stars

  ★ 505 Apache-2.0 🟢Database access framework that verifies and generates source code at compile time using annotation processing as well as native SQL templates called two-way SQL.

  Java·Apache License 2.0·active·15 hours ago

• optimatika/ojAlgo on GitHub, opens in a new tab

  502stars

  ★ 501 MIT 🟢High-performance mathematics, linear algebra and optimisation needed for data science, machine learning and scientific computing.

  Java·MIT License·active·yesterday

• apache/commons-codec on GitHub, opens in a new tab

  489stars

  ★ 489 Apache-2.0 🟢General encoding/decoding algorithms, e.g. phonetic, base64 or URL.

  Java·Apache License 2.0·active·21 hours ago

• poetix/protonpack on GitHub, opens in a new tab

  487stars

  ★ 487 MIT 🟠Collection of stream utilities.

  Java·MIT License·steady·3 months ago

• apache/commons-imaging on GitHub, opens in a new tab

  486stars

  ★ 486 Apache-2.0 🟢Image library.

  Java·Apache License 2.0·active·2 weeks ago

• ksoichiro/awesome-gradle on GitHub, opens in a new tab

  486stars

  slowing·3 years ago

• citrusframework/citrus on GitHub, opens in a new tab

  485stars

  ★ 485 Apache-2.0 🟢Integration testing framework that focuses on both client- and server-side messaging.

  Java·Apache License 2.0·active·4 days ago

• atomikos/transactions-essentials on GitHub, opens in a new tab

  484stars

  ★ 484 🟢Provides transactions for REST, SOA and microservices with support for JTA and XA.

  Java·Other·active·last month

• yWorks/yGuard on GitHub, opens in a new tab

  479stars

  ★ 479 MIT 🟠Obfuscation via renaming and shrinking.

  Java·MIT License·steady·5 months ago

• apache/tomee on GitHub, opens in a new tab

  477stars

  ★ 477 Apache-2.0 🟢Tomcat plus Java EE.

  Java·Apache License 2.0·active·2 days ago

• jmockit/jmockit1 on GitHub, opens in a new tab

  473stars

  ★ 473 🔴Integration testing, API mocking and faking, and code coverage.

  Java·Other·slowing·last year

• a2aproject/a2a-java on GitHub, opens in a new tab

  472stars

  ★ 472 Apache-2.0 🟢Official Java SDK for the Agent2Agent protocol.

  Java·Apache License 2.0·active·13 hours ago

• MenoData/Time4J on GitHub, opens in a new tab

  471stars

  ★ 471 LGPL-2.1 🔴Advanced date and time library.

  Java·GNU Lesser General Public License v2.1·slowing·3 years ago

• eXist-db/exist on GitHub, opens in a new tab

  467stars

  ★ 467 LGPL-2.1 🟢NoSQL document database and application platform.

  Java·GNU Lesser General Public License v2.1·active·10 hours ago

• LatencyUtils/LatencyUtils on GitHub, opens in a new tab

  466stars

  ★ 466 🔴Utilities for latency measurement and reporting.

  Java·Other·slowing·2 years ago

• SpongePowered/Configurate on GitHub, opens in a new tab

  465stars

  ★ 465 Apache-2.0 🟢Configuration library with support for various configuration formats and transformations.

  Java·Apache License 2.0·active·11 hours ago

• TNG/JGiven on GitHub, opens in a new tab

  464stars

  ★ 464 Apache-2.0 🟢Provides a fluent API which allows for simpler composition.

  Java·Apache License 2.0·active·19 hours ago

• arnaudroger/SimpleFlatMapper on GitHub, opens in a new tab

  459stars

  ★ 459 MIT 🟠Simple database and CSV mapper.

  Java·MIT License·steady·11 months ago

• FasterXML/jackson-dataformats-text on GitHub, opens in a new tab

  454stars

  ★ 454 Apache-2.0 🟢Jackson extension for reading and writing CSV.

  Java·Apache License 2.0·active·yesterday

• cloudevents/sdk-java on GitHub, opens in a new tab

  444stars

  ★ 444 Apache-2.0 🟢Java SDK for creating, serializing and transporting CloudEvents.

  Java·Apache License 2.0·active·last month

• gluonhq/substrate on GitHub, opens in a new tab

  444stars

  ★ 444 GPL-2.0 🟢Builds native JavaFX applications for desktop, mobile and embedded targets.

  Java·GNU General Public License v2.0·active·2 months ago

• jdereg/java-util on GitHub, opens in a new tab

  441stars

  ★ 441 Apache-2.0 🟢Zero-dependency, high-performance utilities featuring Converter (universal type conversion), DeepEquals, CaseInsensitiveMap, TTLCache, CompactMap, MultiKeyMap, and object graph traversal.

  Java·Apache License 2.0·active·2 weeks ago

• OpenIdentityPlatform/OpenDJ on GitHub, opens in a new tab

  436stars

  ★ 436 🟢LDAPv3 compliant directory service, developed for the Java platform, providing a high performance, highly available, and secure store for the identities.

  Java·Other·active·5 days ago

• davidmoten/geo on GitHub, opens in a new tab

  434stars

  ★ 434 Apache-2.0 🟢GeoHash utilities in Java.

  Java·Apache License 2.0·active·last week

• Hakky54/log-captor on GitHub, opens in a new tab

  432stars

  ★ 432 Apache-2.0 🟢Captures log entries for unit testing purposes.

  Java·Apache License 2.0·active·2 weeks ago

• Password4j/password4j on GitHub, opens in a new tab

  430stars

  ★ 430 Apache-2.0 🟠User-friendly cryptographic library that supports Argon2, Bcrypt, Scrypt, PBKDF2 and various other cryptographic hash functions.

  Java·Apache License 2.0·steady·4 months ago

• temporalio/sdk-java on GitHub, opens in a new tab

  428stars

  ★ 428 Apache-2.0 🟢Java SDK for writing durable workflows and activities on Temporal.

  Java·Apache License 2.0·active·4 days ago

• permazen/permazen on GitHub, opens in a new tab

  424stars

  ★ 424 Apache-2.0 🟠Language-natural persistence layer.

  HTML·Apache License 2.0·steady·11 months ago

• ThreeTen/threeten-extra on GitHub, opens in a new tab

  423stars

  ★ 423 BSD-3-Clause 🟢Additional date-time classes that complement those in JDK 8.

  Java·BSD 3-Clause "New" or "Revised" License·active·last week

• FasterXML/jackson-modules-java8 on GitHub, opens in a new tab

  423stars

  ★ 423 Apache-2.0 🟢Set of Jackson modules for Java 8 datatypes and features.

  Java·Apache License 2.0·active·yesterday

• jhalterman/concurrentunit on GitHub, opens in a new tab

  419stars

  ★ 419 Apache-2.0 🔴Toolkit for testing multi-threaded and asynchronous applications.

  Java·Apache License 2.0·slowing·2 years ago

• eclipse-jgit/jgit on GitHub, opens in a new tab

  419stars

  ★ 419 🟢Lightweight, pure Java library implementing the Git version control system.

  Java·Other·active·8 hours ago

• smooks/smooks on GitHub, opens in a new tab

  417stars

  ★ 417 🟠Framework for fragment-based message processing. (Apache-2.0 OR LGPL-3.0-or-later)

  Java·Other·steady·9 months ago

• apache/commons-csv on GitHub, opens in a new tab

  415stars

  ★ 415 Apache-2.0 🟢Component for reading and writing comma separated value files.

  Java·Apache License 2.0·active·4 days ago

• shannah/jdeploy on GitHub, opens in a new tab

  415stars

  ★ 415 Apache-2.0 🟢Deploy desktop apps as native Mac, Windows or Linux bundles.

  Java·Apache License 2.0·active·4 days ago

• paohaijiao/jquick-java on GitHub, opens in a new tab

  412stars

  ★ 412 🟢Java-like scripting language for dynamic rule engines with XML orchestration and Java interoperability.

  Java·active·2 weeks ago

• hstsethi/awesome-j2me on GitHub, opens in a new tab

  407stars

  Java·Creative Commons Zero v1.0 Universal·active·3 weeks ago

• apache/commons-compress on GitHub, opens in a new tab

  403stars

  ★ 403 Apache-2.0 🟢Defines an API for working with tar, zip and bzip2 files.

  Java·Apache License 2.0·active·10 hours ago

• romankh3/image-comparison on GitHub, opens in a new tab

  396stars

  ★ 396 Apache-2.0 🟢Library that compares 2 images with the same sizes and shows the differences visually by drawing rectangles. Some parts of the image can be excluded from the comparison.

  Java·Apache License 2.0·active·3 weeks ago

• apache/commons-cli on GitHub, opens in a new tab

  393stars

  ★ 393 Apache-2.0 🟢Command-line arguments parser.

  Java·Apache License 2.0·active·5 days ago

• apache/commons-dbutils on GitHub, opens in a new tab

  392stars

  ★ 392 Apache-2.0 🟢JDBC helper library.

  Java·Apache License 2.0·active·2 weeks ago

• eclipse-aspectj/aspectj on GitHub, opens in a new tab

  392stars

  ★ 392 🟠Seamless aspect-oriented programming extension.

  Java·Other·steady·6 months ago

• googleapis/java-genai on GitHub, opens in a new tab

  391stars

  ★ 391 Apache-2.0 🟢Official Java SDK for integrating Google generative AI models.

  Java·Apache License 2.0·active·3 days ago

• gaul/modernizer-maven-plugin on GitHub, opens in a new tab

  390stars

  ★ 390 Apache-2.0 🟢Detect uses of legacy Java APIs.

  Java·Apache License 2.0·active·2 weeks ago

• arquillian/arquillian-core on GitHub, opens in a new tab

  388stars

  ★ 388 Apache-2.0 🟢Integration and functional testing platform for Java EE containers.

  Java·Apache License 2.0·active·3 days ago

• jdereg/json-io on GitHub, opens in a new tab

  388stars

  ★ 388 Apache-2.0 🟢Convert Java to JSON/TOON and back. Supports complex object graphs, cyclic references, and TOON format for 40-50% LLM token savings.

  Java·Apache License 2.0·active·2 weeks ago

• bsommerfeld/pathetic on GitHub, opens in a new tab

  384stars

  ★ 383 MIT 🟢A highly configurable 3D A* pathfinding library that uses specific optimizations for high performance.

  Java·MIT License·active·4 days ago

• testingisdocumenting/webtau on GitHub, opens in a new tab

  383stars

  ★ 383 Apache-2.0 🟠Test across REST-API, Graph QL, Browser, Database, CLI and Business Logic with consistent set of matchers and concepts.

  Java·Apache License 2.0·steady·4 months ago

• sashirestela/simple-openai on GitHub, opens in a new tab

  381stars

  ★ 381 MIT 🟠Library to use the OpenAI API (and compatible ones) in the simplest possible way.

  Java·MIT License·steady·11 months ago

• javaevolved/javaevolved.github.io on GitHub, opens in a new tab

  381stars

  Side-by-side comparisons of legacy and modern Java patterns.

  Java·MIT License·active·4 days ago

• neomatrix369/awesome-graal on GitHub, opens in a new tab

  369stars

  Shell·Other·dormant·4 years ago

• apache/commons-dbcp on GitHub, opens in a new tab

  368stars

  ★ 368 Apache-2.0 🟢Database connection pooling services.

  Java·Apache License 2.0·active·2 weeks ago

• AutoParams/AutoParams on GitHub, opens in a new tab

  367stars

  ★ 367 MIT 🟠Supports generating test data or combining scenarios for parameterized tests.

  Java·MIT License·steady·4 months ago