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OtterMind / Chat2DB

Chat2DB is a free, cross-platform, local-first database client and SQL workspace for developers, DBAs, analysts, and data teams. Connect to 40+ databases, manage data, edit and run SQL, and use your own AI model to generate, explain, and optimize queries. Available on desktop, web, Docker, and CLI, with MCP support.

▲ ~35/7d ★ 28k Java 1d ago
dromara / MaxKey

Dromara MaxKey 🗝️ SSO ,Leading-Edge IAM-IDaas(Identity and Access Management) Product , Under Apache-2.0 is free ,业界领先的IAM-IDaas身份管理和认证产品,遵循Apache-2.0开源免费,支持OAuth2.x、OpenID Connect、SAML2.0、CAS、JWT、SCIM等SSO标准协议,基于RBAC统一权限控制,实现用户生命周期管理,开源、安全、合规、自主可控。

▲ ~14/7d ★ 2.0k Java today
apache / ozone

Scalable, reliable, distributed storage system optimized for data analytics and object store workloads.

▲ ~14/7d ★ 1.3k Java today
GrapheneOS / Auditor

Hardware-based attestation and intrusion detection app for Android. It provides both local verification with another Android device via QR codes and optional scheduled server-based verification with support for alert emails. It uses hardware-backed keys and attestation support as the foundation and chains trust to the app for software checks.

▲ ~14/7d ★ 725 Java 1d ago
noahdunnagan / mcopt

mcopt, a Minecraft mod: a native Metal renderer for Minecraft: Java Edition on Apple Silicon Macs (alpha)

▲ ~14/7d ★ 491 Java 12d ago
xD3I / PZ_Optimization

Project Zomboid Build 42 performance work: class overrides, harness, findings

▲ ~14/7d ★ 133 Java 2d ago
GaelQuinta / minecraft-metal-shaders

Native Metal shaders for Minecraft Java on Apple Silicon Macs: shadows, volumetric clouds, god rays, reflective water, HDR. A fork of mcopt.

▲ ~14/7d ★ 87 Java 2d ago
apache / incubator-kie

Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.

▲ ~7/7d ★ 6.3k Java today
valkey-io / valkey-glide

An open source Valkey client library that supports Valkey, and Redis open source 6.2, 7.0 and 7.2. Valkey GLIDE is designed for reliability, optimized performance, and high-availability, for Valkey and Redis OSS based applications. GLIDE is a multi language client library, written in Rust with programming language bindings, such as Java and Python

▲ ~7/7d ★ 801 Java today
TimefoldAI / timefold-quickstarts

Get started with Timefold quickstarts here. Optimize the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.

▲ ~7/7d ★ 597 Java today
tencentmusic / jugg

Instant hot reload & fast incremental compilation plugin for Android Studio. See changes in 3 seconds without Gradle overhead.

▲ ~7/7d ★ 550 Java today
IrisShaders / Iris

A modern shaders mod for Minecraft compatible with existing OptiFine shader packs

▲ ~0/7d ★ 3.9k Java 6d ago
eclipse-openj9 / openj9

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.

▲ ~0/7d ★ 3.5k Java today
soot-oss / soot

Soot - A Java optimization framework

▲ ~0/7d ★ 3.1k Java 8d ago
apache / bookkeeper

Apache BookKeeper - a scalable, fault tolerant and low latency storage service optimized for append-only workloads

▲ ~0/7d ★ 2.0k Java today
TimefoldAI / timefold-solver

The open source Solver AI for Java and Kotlin to optimize scheduling and routing. Solve the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.

▲ ~0/7d ★ 1.8k Java today
Mojang / DataFixerUpper

A set of utilities designed for incremental building, merging and optimization of data transformations.

▲ ~0/7d ★ 1.3k Java 12d ago
sakaiproject / sakai

Sakai is a freely available, feature-rich technology solution for learning, teaching, research and collaboration. Sakai is an open source software suite developed by a diverse and global adopter community.

▲ ~0/7d ★ 1.2k Java today
lessthanoptimal / BoofCV

Fast computer vision library for SFM, calibration, fiducials, tracking, image processing, and more.

▲ ~0/7d ★ 1.2k Java today
apache / amoro

Apache Amoro(incubating) is a Lakehouse management system built on open data lake formats.

▲ ~0/7d ★ 1.2k Java today
sagframe / sagacity-sqltoy

Java ORM alternative to MyBatis & Hibernate: JPA-style CRUD + SQL-first queries. Dynamic conditions without <if> blocks; one SQL across 25 databases (auto dialect & function adaptation); self-optimizing pagination; cache translate (no dictionary JOINs); race-proof updateFetch ledgers; sharding, multi-tenancy, data masking. In production since 2008.

▲ ~0/7d ★ 1.1k Java today
jenetics / jenetics

Jenetics - Genetic Algorithm, Genetic Programming, Grammatical Evolution, Evolutionary Algorithm, and Multi-objective Optimization

▲ ~0/7d ★ 910 Java today
anthonyraymond / joal

An open source command line RatioMaster with an optional WebUI.

▲ ~0/7d ★ 828 Java 19d ago
lakernote / easy-postman

An open-source API debugging and stress testing tool inspired by Postman and a simplified JMeter, optimized for developers with a clean UI and powerful features.

▲ ~0/7d ★ 725 Java today
etianl / Trouser-Streak

A compilation of modules optimized for maximum grief. Featuring powerful mods for Chunk Tracing, Base Hunting, and Griefing servers! A few modules were not originally written by me, but have been modified. Customer Service: https://www.breakblocks.com/discord

▲ ~0/7d ★ 704 Java 2d ago
entropy-cloud / nop-entropy

Nop Platform 2.0 is a next-generation low-code development platform built from scratch based on the principles of reversible computation, adopting a language-oriented programming paradigm. It includes a suite of fully designed engines such as a GraphQL engine, ORM engine, workflow engine, reporting engine, rule engine, and batch processing engine,

▲ ~0/7d ★ 700 Java 9d ago
igniterealtime / Spark

Cross-platform real-time collaboration client optimized for business and organizations.

▲ ~0/7d ★ 607 Java 16d ago
jMetal / jMetal

jMetal: a framework for multi-objective optimization with metaheuristics

▲ ~0/7d ★ 561 Java today
OWASP / owasp-java-encoder

Contextual output encoding for Java 8+: HTML, JavaScript, CSS, XML and URI components. Zero-dependency core with optional JSP and Jakarta adapters.

▲ ~0/7d ★ 547 Java 1d ago
optimatika / ojAlgo

Pure Java LP, QP and MIP solvers plus fast linear algebra. Zero dependencies, MIT licensed. Mathematical optimization and linear algebra for the JVM.

▲ ~0/7d ★ 513 Java today
Wizardtastic / Ecstatic

A hilariously optimized level of detail mod for low end (and high end) machines that retains vanilla performance

▲ ~0/7d ★ 59 Java 7d ago
unleg1t / Yuri

Yuri is a clean, Optifine 1.8.9-based Minecraft hacked client that can bypass any anti-cheat and has smooth, polished visuals inspired by Nursultan, Opal, and Pulsive.

▲ ~0/7d ★ 56 Java 6d ago
DeepSQLAI / deepsql

The database agent for Postgres and MySQL - Point it at PostgreSQL or MySQL and ask questions in plain English — schema exploration, query generation, slow query analysis, index recommendations, generated dashboards. Self-hosted and air-gapped.

▲ ~0/7d ★ 39 Java 10d ago
mpenet / enso

Fast, low-allocation, HTTP/1.1 + HTTP/2 + HTTP/3 Ring server adapter for Clojure. Java core optimized for Ring. Built on virtual threads

▲ ~0/7d ★ 35 Java 4d ago
AshJha0 / electronic-trading

Optimal execution and market making, implemented four times over from the same pinned contract: **Almgren-Chriss (2000)** discrete optimal execution, **Avellaneda-Stoikov (2008)** finite-horizon market making, and execution analytics (Perold implementation-shortfall decomposition, participation rate, a tiny native OLS for market-impact estimation).

▲ ~0/7d ★ 29 Java 1mo ago
HEYD66 / termux-silly

Android Termux client with SillyTavern installer, native terminal progress and optimized WebView integration.

▲ ~0/7d ★ 26 Java 1mo ago
ironwood-lang / ironwood

Ironwood is an ahead-of-time compiled, object-oriented language for high-performance native applications. It preserves the familiar Java syntax, object model, and everyday APIs that Java developers already know, while producing optimized native executables with no JVM, JIT, or garbage collector.

▲ ~0/7d ★ 25 Java 10d ago