Jango

Jango is an AI testing application that runs multi-user app scenarios using autonomous participants in isolated browsers.

Jango is a desktop application for developers to test multi-user apps by assigning goals and accounts to AI participants. Each participant operates the web app through its own isolated browser, filling forms, clicking controls, and navigating pages to exercise social feeds, marketplaces, and collaborative workflows. Developers can watch live screens, join sessions to interact alongside the AI, pause runs, and save test casts for future changes. It supports integrations with OpenAI, Anthropic, and Vercel AI Gateway, as well as terminal launch and coding assistants via MCP. The software runs locally on macOS, bundling Node.js and Chromium for browser automation.

Jango at a glance

Best for: Software engineer
Runs on: macOS, CLI, API
Pricing: Free plan with your own AI key; Pro $9/month; Custom plans available with negotiated rates.
Released: September 2026
Category: AI coding tool
Website: usejango.com

Key features

Assign roles and goals to AI cast members
Run isolated browser sessions for multiple participants
Inspect participant screens and join live sessions
Save casts, checkpoints, and execution history
Connect OpenAI, Anthropic, or Vercel AI Gateway
Launch from terminal or coding assistant via MCP

Use it for

Testing social feeds and user interactions
Simulating buyer and seller order book transactions
Checking collaborative workflows and shared tasks
Validating multi-user app scenarios locally

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