Backgrind

What it does

Backgrind is a desktop overlay that lets you run AI coding agents in an always-on-top window that floats over any application — including fullscreen games. It supports bringing your own CLI agents (Claude Code, Cursor) or using the built-in hosted agent called Grindy. The overlay provides a mini-IDE with file tree, syntax-highlighted previews, and rendered Markdown. Key features include click-through glance mode, multi-agent tabs, voice input via on-device Whisper, and a "vibe code" mode that hides source code for a more hands-off experience. Live mode mirrors the desktop session to a phone or iPad with end-to-end encryption.

Who it is for

Backgrind targets "vibe coders" and professional developers who want to delegate coding tasks to AI agents while continuing to work on other things — or even play games. The product is designed for developers who use AI coding tools like Claude Code or Cursor and want to maintain flow without being tied to a terminal. It also appeals to beginners through its "vibe code" mode, which adjusts the level of explanation based on the user's coding level (Basic, Medium, Pro). The overlay works on macOS and Windows.

Why it matters

Traditional AI coding agents require the user to stay in a terminal or editor, breaking flow when switching tasks. Backgrind solves this by keeping the agent accessible in a floating window that can be summoned or hidden with hotkeys. It only interrupts the user when the agent needs a decision, reducing context switching. The ability to run agents over fullscreen games is a unique differentiator, appealing to developers who game while waiting for long-running tasks. The product also emphasizes privacy: in bring-your-own-CLI mode, agent content never touches Backgrind's servers, and a .grindignore file keeps secrets off the wire.

Launch signal

Backgrind launched on Product Hunt on the day of this profile's creation, with 99 followers at launch. The website offers a free tier with a 24-hour trial of Live mode, and paid Plus ($9/month) and Pro ($59/month) plans. The product is available for download on macOS and Windows via GitHub Releases, with signed builds for verification. Linux support is listed as "coming soon."

Brand and naming

The name 'Backgrind' is a clever portmanteau of 'background' and 'grind,' evoking the product's core value: running AI agents in the background while users grind on other tasks. It's short, distinctive, and memorable, though the 'grind' connotation may feel slightly niche to gamers or coders. The domain backgrind.com is exact-match and highly brandable. Positioning is clear: an always-on-top overlay for AI coding agents that works across any app, including games, targeting 'vibe coders' and pro devs who value multitasking.