New Mac App Offrun Lets Developers Run Claude Code, Codex and Other AI Agents Side by Side

A new macOS app called Offrun aims to solve a problem increasingly familiar to developers juggling multiple AI coding assistants: keeping track of several agents working at once without them colliding or losing context.

Offrun, highlighted in a "Show HN" post on Hacker News, runs command-line AI coding tools including Claude Code, Codex, AGY and Grok Build side by side on a developer's own Mac, signed in under the user's existing accounts. The company says it requires no new account, no API key, and never has access to a user's password.

The app's central feature is isolation. Each agent assigned to a project runs in its own git worktree, meaning two agents can work on the same repository simultaneously without touching the same files. A developer could, for instance, run a refactor and a bug fix at the same time and merge the results on their own schedule.

Offrun also supports peer review between agents. A user can designate one agent to read another's diff before it is committed, with findings appearing in the chat while the work remains uncommitted. Nothing merges automatically; the developer decides whether to accept fixes.

For developers who run into rate limits, Offrun can redirect a conversation to a different logged-in account that still has capacity, picking up the full conversation thread rather than starting over. If all connected accounts are tapped out, the app offers to switch to another agent entirely.

Another feature, described as "project memory," stores repo-wide conventions and each agent's goals, plans and past dead ends as plain text files inside the project folder. Agents read this context at the start of a session and update it as they work, intended to prevent later sessions from repeating earlier mistakes. Because the files are stored locally, users can open, edit or version them as they would any other project file.

Offrun also monitors coding agents running elsewhere on the Mac, including those launched outside the app itself, and notifies users when an agent finishes a task or needs input. A built-in preview pane shows diffs, rendered markdown, images, PDFs and a small browser alongside the relevant conversation.

Users can toggle agents between a "Build" mode, which makes and tests changes, and a "Planner" mode, which outlines an approach without altering any files. A dictation feature transcribes spoken prompts entirely on-device, according to the company, with no audio recorded or uploaded.

Offrun states that dictation audio and project files never leave the user's Mac, while agent prompts and code are sent directly to whichever AI provider the user is signed into — such as Anthropic, OpenAI, Google or xAI — without passing through Offrun's own servers, which the company says do not exist in that path.

The app is free, with the company saying all features, including unlimited agents, projects, peer reviews and connected accounts, are available without a paid tier. Users must bring their own subscriptions to the underlying AI coding agents. Offrun requires an Apple Silicon Mac and at least one existing agent CLI to run.

The claims above, including those about data handling and security, come from the company's own description of the product as posted to Hacker News. They have not been independently verified, and readers evaluating the tool for sensitive codebases should review Offrun's own documentation and privacy claims directly before adoption.