Guides & RankingsBest AI Overlay Tools for Windows in 2026
If you've searched for "invisible AI" on Windows, you've found a category that ranges from genuinely engineered solutions to browser extension hacks that screen recorders see right through.
This ranking focuses on one thing: does the tool actually stay invisible during screen sharing, and does it add real value to a development workflow?
What Makes an AI Overlay Actually Work on Windows
Before the rankings, the technical baseline:
The capture exclusion test is the only thing that matters. An AI overlay that appears on your colleagues' screen isn't an overlay — it's a liability.
Windows offers two mechanisms for capture exclusion:
- SetWindowDisplayAffinity (WDA_EXCLUDEFROMCAPTURE) — OS-level. The window is removed from the Desktop Window Manager capture buffer. Works for all screen capture: Zoom, Teams, OBS, Game Bar, everything. Requires a native app. Requires Windows 10 build 19041+.
- Browser sandbox hiding — Application-level. CSS/DOM manipulation that hides elements from the visible page. Does NOT touch the capture pipeline. Screen recording software captures the DOM before browser rendering in many cases. Unreliable.
Any tool that doesn't specify which mechanism it uses should be tested before you trust it in a high-stakes situation.
1. GhostDesk — Best for Windows Developers
ghost-desk.app
- Capture method: SetWindowDisplayAffinity (OS-level DWM)
- Platform: Windows 10/11 (native Electron app)
- Works outside browser: Yes
- AI models: DeepSeek V3 (chat), DeepSeek R1 (reasoning), Deepgram Nova-3 (voice), Llama Scout (OCR)
- Pricing: $5/24hr · $9.99/month · $21.99/3mo · $34.99/6mo
- Free trial: 3 days, no card
GhostDesk is the only tool in this category that uses true OS-level capture exclusion on Windows. The overlay floats above any Windows application — not just the browser — and is verified daily across 14+ platforms including Zoom, Teams, Meet, Discord, Slack, and OBS.
The DeepSeek R1 integration for coding and reasoning is the standout feature for developers — the model's reasoning chain is visible, which helps when working through complex problems. Voice input via Deepgram Nova-3 and screen OCR round out a feature set that covers every input modality a developer needs.
Best for: Windows developers, technical work outside the browser, anyone who needs verified cross-platform invisibility.
2. Cluely — Best for Mac / Browser-First Users
- Capture method: Browser-based
- Platform: Multi-platform (browser)
- Works outside browser: No
- Pricing: Subscription
- Free trial: Varies
Cluely targets a similar audience but uses a different technical approach. It works within the browser environment, which makes it accessible on Mac and for users who work primarily in-browser. On Windows, GhostDesk's OS-level approach is technically more reliable.
Best for: Mac users, browser-heavy workflows.
3. DIY Electron + SetWindowDisplayAffinity
For developers who want to build their own: the mechanism is `mainWindow.setContentProtection(true)` in Electron, which calls WDA_EXCLUDEFROMCAPTURE on Windows. Requires runtime version detection for Windows 10 builds older than 19041.
- Build time: several weeks to reach production reliability.
- Maintenance: daily platform verification across video call providers is non-trivial — each provider implements screen capture slightly differently.
Best for: Developers who want full control and have time to build and maintain.