Pilo – open-source agentic web automation engine by Mozilla
Hello HN, We are the team behind Tabstack (https://tabstack.ai) - part of Mozilla. We just open sourced Pilo (pronounce PIE-low), the core engine that powers our automation platform. You can check it out on Github at https://github.com/mozilla/pilo. Pilo is an agentic web automation library. Instead of writing rigid scripts with CSS selectors, you give it a natural language goal (e.g., "Find the best pizza in Seattle and extract the ratings") and it autonomously navigates the browser to achieve it. We built this because we were struggling to make reliable agents…
Pilo – open-source agentic web automation engine by Mozilla launched on February 24, 2026 with 18 votes, #784 of 16,627 launches that month and more than 90% of that year's launches.
In plain words
Pilo is an open-source web automation library by Mozilla that uses natural language goals instead of traditional scripts to navigate browsers autonomously. Users describe what they want accomplished—like finding restaurant ratings or extracting specific data—and Pilo handles the browser interaction without requiring CSS selectors or HTML parsing. It prioritizes reliability by using accessibility trees rather than raw HTML, addressing common brittleness issues in automation tools while avoiding the context window bloat of feeding entire pages to language models.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hello HN, We are the team behind Tabstack (https://tabstack.ai) - part of Mozilla. We just open sourced Pilo (pronounce PIE-low), the core engine that powers our automation platform. You can check it out on Github at https://github.com/mozilla/pilo. Pilo is an agentic web automation…
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