Developer Tools
CodeSandbox
Last updated 2026-08-03 · benchmark measured 2026-08-03 — deterministic & reproducible
Cloud development environments for AI agents, coding playgrounds, and teams.
60/100
Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.
Is CodeSandbox production-ready?
Legit.Show scores CodeSandbox 60 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on CodeSandbox (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Accessibility; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 55/100
- Accessibility — 95/100
- Security — 25/100
- Privacy — 25/100
- Reliability — 70/100
- Standards — 89/100
- Discoverability — 60/100
What we measured
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 318 ms to first byte.
- Returns a proper 404 for unknown routes.
- 0 of 3 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: OpenGraph image.
Who built it
product account @codesandbox
Who it's for
AI agents · Developers · Students · Teams · Educators