Coworker v0.4.0: Desktop AI Agent App Adds Browser Use

Melvin Vivas · X video post · 2026-08-29 · 0:16 · 772 views · Open on X

Topics: AI Agents, Tool Use & MCP, AI Dev Tools & Productivity · Level: beginner

Summary

Melvin Vivas (donvitocodes) announces version 0.4.0 of Coworker, his desktop app where AI agents do work for you. Coworker runs local or cloud models. The main new feature in this release is browser use, so agents can now control a web browser. The 16-second video has no narration, so the post is mostly a pointer to the download page and the GitHub repo.

Key points

• Coworker is a local-first desktop app where AI agents do tasks for you.
• It works with both local and cloud LLMs.
• Version 0.4.0 adds browser use, so agents can control a web browser to finish tasks.
• The source code is on GitHub at donvito/coworker. You can read it to see how a desktop agent app is built.
• You can download the app from donvitocodes.com/coworker.

Resources mentioned

• Coworker (donvito/coworker) · repo · github.com · free
  The creator's local-first desktop app where you pick an AI coworker and have it produce work such as invoices as finished PDFs.
  Also in: Claude Opus 5.5 for Video Making: Creator's Showcase Thread (Coworker) (Melvin Vivas on X · notes), Coworker: free open-source desktop AI coworker app (Melvin Vivas on X · notes), Coworker: Open-Source Desktop App for AI Agents (Melvin Vivas on X · notes), Using Devin AI to Test the Coworker Desktop App on Windows (Melvin Vivas on X · notes) and 38 more

Try this

• Download Coworker v0.4.0 from donvitocodes.com/coworker and try the new browser-use feature.
• Look through the donvito/coworker GitHub repo to see how it handles desktop agents and browser use.