Repository Index

PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.

• json
• markdown
• pdf
• ai

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Extends Valkey and Redis with over 60 objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..

• java
• redis
• lock
• map

Video players (IJKplayer, ExoPlayer, MediaPlayer), HTTPS, 16k page size, danmaku (bullet chat) support, external subtitles, support for filters, watermarks, and GIF screenshots, pre-roll and mid-roll ads, multiple simultaneous playback, basic seeking/dragging, volume and brightness adjustment, play-while-cache support

• android
• video
• player
• ijkplayer

QuestDB is a high performance, open-source, time-series database

• time-series
• low-latency
• database
• sql

TranslatedBig Data Beginner's Guide :star:

• hadoop
• hdfs
• yarn
• mapreduce

Quarkus: Supersonic Subatomic Java.

• kubernetes
• java
• cloud-native
• reactive

Translatedflink learning blog. http://www.54tianzhisheng.cn/ Covers Flink introduction, concepts, principles, hands-on practice, performance tuning, source code analysis, and more. Includes learning examples involving Flink Connector, Metrics, Library, DataStream API, Table API & SQL, and also shares large-scale project cases of Flink in production (PV/UV, log storage, real-time deduplication of 10 billion records, monitoring and alerting). You are welcome to support my column 《大数据实时计算引擎 Flink 实战与性能优化》 ("Big Data Real-Time Computing Engine Flink: Hands-On Practice and Performance Optimization")

• flink
• kafka
• elasticsearch
• spark

Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running math code and a java based math library on top of the core c++ library. Also includes samediff: a pytorch/tensorflow like library for running deep learn...

• java
• gpu
• deeplearning
• neural-nets

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.

• huggingface
• java
• langchain
• openai

Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.

• camel
• integration
• java
• microservices

Text editor - Notes, ToDo & Filemanager (for Android) - Markdown, todo.txt, plaintext, math, ..

• markdown
• markdown-editor
• android-app
• editor

Upserts, Deletes And Incremental Processing on Big Data.

• hudi
• apachehudi
• datalake
• bigdata

Yahoo! Cloud Serving Benchmark

No-root network monitor, firewall and PCAP dumper for Android

• pcap
• capture-traffic
• android
• no-root

XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

• bitcoin

A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

• java
• bitset
• roaring-bitmaps
• roaringbitmap

The repository host gives no description.

• concurrency
• data-structures
• queues
• lock-free

Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.

• sql
• spark
• hive
• pyspark

DataSphereStudio is a one stop data application development& management portal, covering scenarios including data exchange, desensitization/cleansing, analysis/mining, quality measurement, visualization, and task scheduling.

• workflow
• governance
• azkaban
• davinci

Java library for parsing and rendering CommonMark (Markdown)

• commonmark
• java
• markdown
• parser

CommonMark/Markdown Java parser with source level AST. CommonMark 0.28, emulation of: pegdown, kramdown, markdown.pl, MultiMarkdown. With HTML to MD, MD to PDF, MD to DOCX conversion modules.

• commonmark
• pegdown
• java
• markdown-parser

Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.

• code-analysis
• code-transformation
• metaprogramming
• code-generation

Elassandra = Elasticsearch + Apache Cassandra

• cassandra
• elasticsearch
• search
• completion

Nessie: Transactional Catalog for Data Lakes with Git-like semantics

• data
• spark
• java
• iceberg