# Deno Sandbox vs Freestyle (slim)

> Freestyle scores 58.5 (C) on agent readiness against Deno Sandbox's 50.3 (D), and leads in 4 of 7 scored categories. Deno Sandbox leads on reliability, security & auth and transparency & trust. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle.md (~2,550 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle.json · canonical https://www.anchorterminal.com/compare/deno-sandbox-vs-freestyle
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Freestyle scores 58.5 (C) on agent readiness against Deno Sandbox's 50.3 (D), and leads in 4 of 7 scored categories. Deno Sandbox leads on reliability, security & auth and transparency & trust. Both do sandbox code.

- Deno Sandbox: D 50.3, rank #689 of 842 · https://www.anchorterminal.com/tools/deno-sandbox.min.md
- Freestyle: C 58.5, rank #520 of 842 · https://www.anchorterminal.com/tools/freestyle.min.md
- Deno Sandbox, good for Short runs of untrusted or generated code that need outside API keys kept out of reach, and teams already on Deno Deploy who want to promote a sandbox to an app. Ahead on Reliability, 48 against 43; Security & auth, 61 against 53; Transparency & trust, 58 against 41.
- Freestyle, good for Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking. Ahead on Schema & documentation, 86 against 66; Agent ergonomics, 69 against 60; Payments & pricing, 45 against 20; Maintenance & community, 71 against 45. Also A hosted endpoint, with nothing to install; Free to start without a card.

| Category | Deno Sandbox | Freestyle |
| --- | --- | --- |
| Reliability (16%) | 48 | 43 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 66 | 86 |
| Agent ergonomics (13%) | 60 | 69 |
| Security & auth (14%) | 61 | 53 |
| Payments & pricing (10%) | 20 | 45 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 45 | 71 |
| Transparency & trust (7%) | 58 | 41 |

| Fact (where they differ) | Deno Sandbox | Freestyle |
| --- | --- | --- |
| Vendor | Deno Land Inc. | Freestyle Cloud Inc. |
| Hosted endpoint | no (local only) | `https://api.freestyle.sh/v5` |
| Pricing | Paid | Freemium |
| Licence | Proprietary service under the Deno Deploy terms and conditions. The `@deno/sandbox` and `deno-sandbox` SDKs are MIT | Proprietary service with no published terms of service found. The `freestyle` SDK and CLI package on npm is MIT |
| Read-only variant documented | yes | no |
| Last release | 2026-07-22 | 2026-09-27 |
| Terms last updated | 2026-09-30 | no document linked |
| Privacy policy last updated | 2026-09-30 | no document linked |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 6 stars, 2k npm/wk, 32k PyPI/wk | 72k npm/wk |