GitHub Copilot App Adds Integrated Diff, Terminal, Browser Tools

GitHub has introduced new features to its Copilot app, giving developers an integrated environment to review, test, and iterate on AI-generated code without leaving the app. The update includes a diff panel for code changes, a terminal panel for running commands, and a browser panel for live testing—all aimed at streamlining the coding process.

The diff panel highlights changes made to code, showing additions in green and deletions in red. This allows developers to review AI-generated edits, accept or reject them, and even request further adjustments from Copilot. The terminal panel enables developers to run and debug their code directly within the app, eliminating the need to switch to external command-line tools. For projects with user interfaces, the browser panel lets users test and refine features in real-time, using a tool called “Pick & Polish” to adjust elements on the fly.

This update reflects GitHub’s broader strategy of positioning Copilot as a comprehensive AI coding platform rather than a simple autocomplete tool. Since its launch, Copilot has evolved to include advanced agentic workflows, such as creating pull requests and working across repositories. In April 2026, GitHub shifted all Copilot plans to usage-based billing, emphasizing its growing role in developer productivity. As of July 2026, Microsoft reported that GitHub Copilot had reached 50 million users globally.

These new features are likely to appeal to developers who rely on AI tools to speed up workflows while maintaining control over code quality. The ability to complete the coding loop—review, run, and test—in a single interface reduces friction and ensures that AI-generated contributions meet project requirements. This could be particularly valuable for teams adopting Copilot in business and enterprise environments, where efficiency and traceability are critical.

GitHub’s investment in product enhancements comes as competition in the AI developer tools space intensifies. By integrating more functionality into the Copilot app, the company aims to solidify its position as the go-to platform for AI-assisted coding, potentially driving further adoption among its massive user base.

For developers already using Copilot, these updates are available now in the app. For businesses, GitHub recently reopened Copilot Business and Enterprise signups, with billing adjustments for existing customers set to take effect on October 1, 2026. With AI tools becoming increasingly central to software development, these updates underscore GitHub’s commitment to making AI-generated code easier and safer to use at scale.

Image source: Shutterstock