Top 7 Open-Source Alternatives to Apache POI

The top open-source alternatives to Apache POI are Guava, RxJava, and Apache FreeMarker. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Guava Landing Page
1

Guava

Google core libraries for Java 6+.
Pricing:
- Open Source
#Application And Data #Web Frameworks #Languages & Frameworks 19 social mentions
RxJava Landing Page
2

RxJava

RxJava – Reactive Extensions for the JVM is a library for composing asynchronous and event-based programs using observable sequences.
Pricing:
- Open Source
#Application And Data #Web Frameworks #Languages & Frameworks
Apache FreeMarker Landing Page
3

Apache FreeMarker

Java template engine; generates HTML web pages, e-mails, configuration files, source code, etc. from template files and the data your application provides.
Pricing:
- Open Source
#Application And Data #Web Frameworks #Languages & Frameworks 8 social mentions
Thymeleaf Landing Page
4

Thymeleaf

Thymeleaf is a modern server-side Java template engine for both web and standalone environments.
Pricing:
- Open Source
#Javascript UI Libraries #JS Library #Front-End Frameworks
Lombok Landing Page
5

Lombok

Application and Data, Languages & Frameworks, and Java Tools
Pricing:
- Open Source
#Web Frameworks #Application And Data #Languages & Frameworks 49 social mentions
React Native Landing Page
6

React Native

A framework for building native apps with React
Pricing:
- Open Source
#Development Tools #JavaScript Framework #Javascript UI Libraries 213 social mentions
Flutter.dev Landing Page
7

Flutter.dev

Build beautiful native apps in record time 🚀
Pricing:
- Open Source
#Development Tools #Application Builder #Mobile App Development 341 social mentions