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Top 23 Python Java Projects
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Ray
Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.
Project mention: My personal favorite MCP server which has became part of my life | dev.to | 2025-05-27GitHub: github.com/ray-project/ray (Ray Serve is part of Ray)
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airbyte
The leading data integration platform for ETL / ELT data pipelines from APIs, databases & files to data warehouses, data lakes & data lakehouses. Both self-hosted and Cloud-hosted.
Project mention: Migrate connectors from MIT to ELv2 – Pull Request #63723 – airbytehq/airbyte | news.ycombinator.com | 2025-08-15 -
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m2cgen
Transform ML models into a native code (Java, C, Python, Go, JavaScript, Visual Basic, C#, R, PowerShell, PHP, Dart, Haskell, Ruby, F#, Rust) with zero dependencies
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blade-build
Blade is a powerful build system from Tencent, supports many mainstream programming languages, such as C/C++, java, scala, python, protobuf...
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arl
lists of most popular repositories for most favoured programming languages (according to StackOverflow)
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: A high-performance, zero-overhead, extensible Python compiler using LLVM | news.ycombinator.com | 2024-09-18
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ClipCascade
ClipCascade is a lightweight utility that automatically syncs the clipboard across devices, no key press required.
Project mention: ClipCascade: Seamless Clipboard Sync Across Devices | news.ycombinator.com | 2024-10-05 -
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emerge
Emerge is a browser-based interactive codebase and dependency visualization tool for many different programming languages. It supports some basic code quality and graph metrics and provides a simple and intuitive way to explore and analyze a codebase by using graph structures.
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jaydebeapi
JayDeBeApi module allows you to connect from Python code to databases using Java JDBC. It provides a Python DB-API v2.0 to that database.
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cwhy
"See why!" Explains and suggests fixes for compile-time errors for C, C++, C#, Go, Java, LaTeX, PHP, Python, Ruby, Rust, and TypeScript
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tabnine-sublime
Tabnine Autocomplete AI: JavaScript, Python, TypeScript, PHP, C/C++, HTML/CSS, Go, Java, Ruby, C#, Rust, SQL, Bash, Kotlin, Julia, Lua, OCaml, Perl, Haskell, React
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cookietemple
A collection of best practice cookiecutter templates for all domains and languages with extensive Github support ⛺
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compiler-benchmark
Benchmarks compilation speeds of different combinations of languages and compilers.
Yea, sounds painful. That’s only 50 lines of code per second.
Swift is the slowest on the compilation benchmarks at https://github.com/nordlow/compiler-benchmark.
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tree-hugger
A light-weight, extendable, high level, universal code parser built on top of tree-sitter
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Python Java discussion
Python Java related posts
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Migrate connectors from MIT to ELv2 – Pull Request #63723 – airbytehq/airbyte
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Top 5 Essential Build Tools for Modern Development
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Mapping latitude and longitude to country, state, or city
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All Data and AI Weekly #187 - April 28, 2025
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Personal Picks: Data Product News (April 16, 2025)
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Java Minecraft in the Browser
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Rust, C++, and Python trends in jobs on Hacker News (February 2025)
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A note from our sponsor - Sevalla
sevalla.com | 2 Sep 2025
Index
What are some of the best open-source Java projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Ray | 38,705 |
| 2 | airbyte | 19,349 |
| 3 | drozer | 4,290 |
| 4 | pants | 3,603 |
| 5 | m2cgen | 2,898 |
| 6 | blade-build | 2,085 |
| 7 | arl | 2,032 |
| 8 | Minecraft-Performance-Flags-Benchmarks | 1,523 |
| 9 | graalpython | 1,451 |
| 10 | PyJNIus | 1,450 |
| 11 | jpype | 1,228 |
| 12 | ClipCascade | 1,052 |
| 13 | fabulously-optimized | 1,051 |
| 14 | emerge | 936 |
| 15 | jaydebeapi | 375 |
| 16 | Spring4Shell-POC | 368 |
| 17 | cwhy | 297 |
| 18 | tabnine-sublime | 202 |
| 19 | Log4Shell-IOCs | 183 |
| 20 | roadmap | 161 |
| 21 | cookietemple | 160 |
| 22 | compiler-benchmark | 147 |
| 23 | tree-hugger | 129 |
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