# Microsoft Execution Containers vs Offscreen (slim)

> Microsoft Execution Containers scores 76.3 (BB) to Offscreen's 62.9 (B) for code sandboxes. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-offscreen.md (~2,800 tokens) · this version ~580 tokens · JSON https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-offscreen.json · canonical https://www.anchorterminal.com/compare/microsoft-execution-containers-vs-offscreen
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Microsoft Execution Containers scores 76.3 (BB) on agent readiness against Offscreen's 62.9 (B), and leads in 5 of 7 scored categories. Both do code sandboxes.

- Microsoft Execution Containers: BB 76.3, rank #43 of 1133 · https://www.anchorterminal.com/tools/microsoft-execution-containers.min.md
- Offscreen: B 62.9, rank #456 of 1133 · https://www.anchorterminal.com/tools/offscreen.min.md
- Microsoft Execution Containers, good for A developer building an agent or tool host that must run model-written code on the user's own machine, above all on Windows, where it reaches Microsoft's process and session isolation. Ahead on Reliability, 81 against 55; Schema & documentation, 81 against 67; Security & auth, 69 against 62; Maintenance & community, 92 against 66; Transparency & trust, 83 against 56. Also Agent-ready, a grade of BB or better.
- Offscreen, good for A coding agent working on a macOS or iOS app on the developer's own Apple silicon Mac, which needs to run UI tests, the Simulator or the built app without taking the screen.

| Category | Microsoft Execution Containers | Offscreen |
| --- | --- | --- |
| Reliability (16%) | 81 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 81 | 67 |
| Agent ergonomics (13%) | 74 | 74 |
| Security & auth (14%) | 69 | 62 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 92 | 66 |
| Transparency & trust (7%) | 83 | 56 |

| Fact (where they differ) | Microsoft Execution Containers | Offscreen |
| --- | --- | --- |
| Vendor | Microsoft | Mark Phelps |
| Read-only variant documented | yes | no |
| Last release | 2026-10-17 | 2026-10-16 |
| Privacy policy last updated | couldn't be read | no document linked |
| Popularity | 1.5k stars, 472k npm/wk | none |