Best ANTLR Alternatives & Competitors in 2025

Elegant PEG parsing in Java - lightweight, easy-to-use, powerful.

Open Source

The website of Eclipse Xtext, an open-source framework for development of programming languages and domain-specific languages

Powerful SaaS integration toolkit for SaaS developers - create, amplify, manage and publish native integrations from within your app with Cyclr's flexible Embedded iPaaS.

Try for free paid Free Trial

Ragel compiles executable finite state machines from regular languages.

textX is a meta-language for building Domain-Specific Languages (DSLs) in Python. It is inspired by Xtext. It will help you build your textual language easily. You can invent your own language or build a support for an existing textual language.

GNU Bison, commonly known as Bison, is a parser generator that is part of the GNU Project.

Tunnel Grammar Studio is an Integrated Development Environment for generating parsers (also known as parser generator or a compiler compiler).

dropincc.java - A small and easy to use parser generator.

Efficient and understandable parser generator.

LaunchDarkly is a powerful development tool which allows software developers to roll out updates and new features.

Unleash is an open-source feature management platform. We are private, secure, and ready for the most complex setups out of the box.

Open Source freemium $75.0 / Monthly ("Enterprise Pay-as-you-go", "5 users")

Use the MPS platform to create your own domain-specific language that speaks to your business needs.

All-in-one rental software for small and medium-sized businesses.

paid Free Trial $29.0 / Monthly

We call you when your website goes down

freemium