JungleGym and TreeVoyager – OSS Data and Tool for Autonomous Web Agents

In plain words

JungleGym is an open-source project providing datasets and tools for building autonomous web agents. It includes multiple datasets like Mind2Web and WebArena for benchmarking and testing AI agents against established ground truths through an API. The project features TreeVoyager, an LLM-based DOM parser that helps developers implement task logic for web agents. It is designed for AI builders developing and testing autonomous agents that interact with web interfaces.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

We are very excited to introduce JungleGym, our new open-source launch featuring datasets and tools for developing autonomous web agents, by Marco Mascorro and Matt Bornstein. Addressing the challenge of benchmarking and testing AI agents, JungleGym aims to facilitate builders in this domain. Project overview…

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