Side by side
Metalware vs OSS-Fuzz
Both stand on fuzz testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid APILinuxSelf-hosted+1
Metalware pairs emulated firmware execution with fuzzing and defect analysis, then provides debugging integrations and CI workflows. Its documented target scope and on-premise compute demands are key constraints to weigh.
Visit Metalware
Free plan Web
Eligible open-source projects should consider OSS-Fuzz for distributed fuzzing and private bug alerts at no charge. Projects that do not qualify, including closed-source projects, can run their own ClusterFuzz or ClusterFuzzLite instances; accepted projects also need to work within the build and disk limits.
Visit OSS-FuzzThe facts
| Metalware | OSS-Fuzz | |
|---|---|---|
| Free plan | Not published | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Self-hosted, Web | Web |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | product.metalware.com | google.github.io |
| On fuzz testing software | #21 of 26 | #17 of 26 |
Metalware: what it does well
- Analysis does not require physical hardware or source code.
- Symbols are not required for supported binaries.
- Results include root cause analysis and a proof-of-concept input.
- Offers cloud and on-premise deployment.
- Documents GitHub Actions and GitLab CI workflows.
What to know first
- Documented firmware support is for ARM Cortex-M.
- On-premise fuzzing is CPU intensive.
- Pricing is available on request.
OSS-Fuzz: what it does well
- Free service for accepted open-source projects.
- Supports seven listed programming languages.
- Combines fuzzing engines with sanitizers.
- Provides private alerts about detected bugs.
- Supports CI/CD and crash triage.
What to know first
- Acceptance requires an open-source project meeting stated criteria.
- Builds are limited to four per day.
- Builder disk usage must stay below 250 GB.
- Full ClusterFuzz access requires a Google account.
Alternatives to Metalware Alternatives to OSS-Fuzz The whole list