krahets / hello-algo
An open-source, animated, illustrated tutorial on data structures and algorithms with runnable code in many languages.
krahets / hello-algo
apache / kafka
Distributed event streaming platform for building high-throughput data pipelines and streaming applications.
dbeaver / dbeaver
Free multi-platform desktop SQL client and database tool supporting any JDBC or ODBC database.
jeecgboot / JeecgBoot
Enterprise low-code platform (Spring Boot and Vue3) that generates frontend, backend, and database code from natural-language prompts or a code generator.
jean-voila / FeurStagram
A patch for the official Instagram Android app that removes the feed, Reels, Explore and ads while keeping DMs, stories and search.
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.
dataease / dataease
🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau.
thingsboard / thingsboard
All-in-one IoT Platform - Device management, data collection, processing and visualization.
zxing / zxing
ZXing ("Zebra Crossing") barcode scanning library for Java, Android
kestra-io / kestra
Open-source event-driven orchestration platform for scheduling and running data, AI, and infrastructure workflows defined in YAML.
langchain4j / langchain4j
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
questdb / questdb
QuestDB is a high performance, open-source, time-series database
cryptomator / cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
apache / doris
Apache Doris is a real-time analytics and hybrid search database for AI agents.
jeecgboot / jimureport
一款真正的 AI 报表诞生了！JimuChatBI —— 首款免费开源对话式智能数据分析产品（Chat2BI）。 一句话生成报表和数据大屏，支持对话式 AI 修改优化；类 Excel 在线报表设计，兼容国产信创数据源。 对着 AI 说句话，报表就出来了——表格、图表、分组汇总自动生成，复杂报表场景轻松应对。想做数据大屏？同样一句话搞定，让数据分析进入 AI 时代。
grimmory-tools / grimmory
A self-hosted library for your ebooks, comics, and audiobooks
TheAlgorithms / Java
All Algorithms implemented in Java
debezium / debezium
Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.
StarRocks / starrocks
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
apache / cassandra
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
1Panel-dev / CordysCRM
🔥 Cordys 是由飞致云匠心打造的新一代的开源 AI CRM 系统，深度融合信息化、数字化与智能化能力，支持私有化部署，全面保障企业数据安全与主权。
apache / ozone
Scalable, reliable, distributed storage system optimized for data analytics and object store workloads.
ArcadeData / arcadedb
ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis. ArcadeDB is a conceptual fork of OrientDB, the first Multi-Model DBMS. ArcadeDB supports Vector Embeddings.
opendataloader-project / opendataloader-pdf
PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.
apache / flink
Apache Flink
apache / shardingsphere
Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.
apache / druid
Apache Druid: a high performance real-time analytics database.
trinodb / trino
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
apache / zookeeper
Apache ZooKeeper
OpenRefine / OpenRefine
OpenRefine is a free, open source power tool for working with messy data and improving it
flyway / flyway
Flyway by Redgate • Database Migrations Made Easy.
pentaho / pentaho-kettle
Pentaho Data Integration ( ETL ) a.k.a Kettle
apache / hertzbeat
An AI-powered next-generation open source real-time observability system.
hazelcast / hazelcast
Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
hibernate / hibernate-orm
Idiomatic persistence for Java and relational databases
apache / pinot
Apache Pinot - A realtime distributed OLAP datastore
apache / hbase
Apache HBase
apache / calcite
Apache Calcite
baomidou / dynamic-datasource
dynamic datasource for springboot 多数据源 动态数据源 主从分离 读写分离 分布式事务
apache / streampark
The Open Control Plane for Real-Time Data
apache / tika
The Apache Tika toolkit detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF).
immutables / immutables
Java annotation processor to create immutable objects and builders, for records too. Sweep boilerplate code under the rug!
apache / gravitino
World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.
Wisser / Jailer
Database Subsetting and Relational Data Browsing Tool.
drewnoakes / metadata-extractor
Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files
OpenLineage / OpenLineage
An Open Standard for lineage metadata collection
eclipse-collections / eclipse-collections
Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
sanluan / PublicCMS
More than 2.7 million lines of code modification continuously iterated for 10 years to modernize java cms, easily supporting tens of millions of data, tens of millions of PV; Support static, server side includes; Currently has 0.0005% of the world's users (w3techs provided data), language support in Chinese, Japanese, English
datageartech / datagear
DataGear数据可视化分析平台，自由制作任何数据看板
JonathanLink / PDFLayoutTextStripper
Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This is a subclass of PDFTextStripper class (from the Apache PDFBox library).
apache / hop
Hop Orchestration Platform
apache / jena
Apache Jena, A free and open source Java framework for building Semantic Web and Linked Data applications.
wgzhao / Addax
Actively maintained successor to Alibaba DataX — a fast, versatile, open-source ETL tool for 30+ RDBMS and NoSQL data sources.
datavane / tis
Support agile Ontology DataOps Based on Flink, DataX and Flink-CDC with Web-UI
booklore-app / booklore
BookLore: A self-hosted, multi-user digital library with smart shelves, auto metadata, Kobo & KOReader sync, BookDrop imports, OPDS support, and a built-in reader for EPUB, PDF, and comics.
devlive-community / metaforge
DataCap is integrated software for data transformation, integration, and visualization. Support a variety of data sources, file types, big data related database, relational database, NoSQL database, etc. Through the software can realize the management of multiple data sources, the data under the source of various operations conversion ...
PolyhedralDev / Terra
Voxel world generation modding platform
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
linkedin / venice
Venice, Derived Data Platform for Planet-Scale Workloads.
yimindev / dati
Turn your database into secure, semantically rich MCP tools for agents.