google/clusterfuzz
Scalable fuzzing infrastructure. observed · 2026-08-28
Health v2 · maintenance only
95/100
- Activity 99
- Release rhythm 87
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 2
- age_days: 2774
- days_rel: 9
- days_push: 7
- n_releases_24m: 100
Adoption not part of the score
5597 stars · 629 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
ClusterFuzz is Google's scalable fuzzing infrastructure that finds security and stability bugs in software, serving as the backend for OSS-Fuzz. It supports multiple fuzzing engines, crash deduplication, automatic bug filing and triage, and a web UI for managing fuzzing at cluster scale.
Use cases
- run continuous fuzzing on my software project
- find security vulnerabilities automatically with fuzzing
- set up an OSS-Fuzz-like fuzzing backend
- deduplicate and triage fuzzer crashes automatically
- minimize fuzzing testcases and find regression ranges
- fuzz my project in CI with ClusterFuzzLite
When to choose
- you need large-scale, continuously running fuzzing across many machines
- you want automated crash deduplication, bug filing, and regression bisection
- you are integrating with OSS-Fuzz or supporting libFuzzer/AFL++/Honggfuzz targets
When to avoid
- you only need occasional local fuzzing runs - use the fuzzing engines directly or ClusterFuzzLite
- you want a lightweight CI-only fuzzing setup without infrastructure overhead
- you cannot operate a cluster of VMs or containers
Facets
service · maturity active
fuzzing security vulnerability-scanning testing monitoring security developer-tools testing python cloud self-hosted fuzzing-infrastructure oss-fuzz crash-deduplication bug-triage coverage-guided-fuzzing libfuzzer afl testcase-minimization bisection devops linux docker
3 sources
- readme: https://github.com/google/clusterfuzz · fetched 2026-08-28 · 88b5b0a4743d
- homepage: https://google.github.io/clusterfuzz · fetched 2026-08-29 · 2876af210161
- registry_pypi: https://pypi.org/pypi/clusterfuzz/json · fetched 2026-08-29 · d12016dc8270
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| google/clusterfuzz | main | 95 |
For agents
markdown · JSON · MCP: product_card(name="google/clusterfuzz")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem