head to head · open source
taipy vs langchain4j
taipy has 19,436 GitHub stars, 1,993 forks, 225 open issues and last shipped 1 months ago. langchain4j has 13,116 stars, 2,555 forks, 878 open issues and last shipped 2 days ago. taipy leads on adoption by 48% (19,436 vs 13,116 stars). taipy is written in Python under Apache-2.0; langchain4j is written in Java under Apache-2.0. taipy has attracted 10% as many forks as stars, langchain4j 19%. langchain4j was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 8884 open source comparisons
Side by side
| taipy | langchain4j | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 13K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-08-10 | 2026-09-16 |
| Forks | ⑂ 2.0K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick taipy if
- You weight community size — 19K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick langchain4j if
- You want the langchain4j feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and langchain4j fits your workflow better
About taipy
Taipy is an open source Python library and ecosystem for building data and AI driven web applications. It is designed for data scientists and machine learning engineers who want to turn data and AI algorithms into production ready web applications, and it lives in the Python ecosystem under the Apache 2.0 license. The project is maintained by Avaiga Private Limited and has been developed over roughly five years, with the repository showing 19,435 stars, 1,993 forks, and 225 open issues at the time of writing.
read the full taipy overview →
About langchain4j
LangChain4j is an Apache 2.0, open source, idiomatic Java library for building LLM powered applications on the JVM, aimed at Java developers and enterprise teams who want one unified API over many LLM providers and embedding stores without leaving the Java ecosystem.
read the full langchain4j overview →
More in AI & Machine Learning
Related comparisons
More Machine Learning Infrastructure projects
Compare either of these against the rest of the Machine Learning Infrastructure field.
Frequently asked questions
Is taipy or langchain4j more popular?
taipy has 19,436 GitHub stars and langchain4j has 13,116. taipy has the larger community by that measure.
Are taipy and langchain4j free?
Both are open source. taipy is licensed under Apache-2.0 and langchain4j under Apache-2.0. Neither carries a licence fee.
What is the difference between taipy and langchain4j?
taipy is written in Python and langchain4j in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, taipy or langchain4j?
Choose taipy if you want the larger community (19,436 stars) or its Apache-2.0 licence terms. Choose langchain4j if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.