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Fuzzinator vs Jazzer

Fuzzinator

6.3#11 in fuzz testing softwareFree plan
Free planWebLinuxmacOSWindows
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Jazzer

7.3#1 in fuzz testing softwareFree plan
Free planAPILinuxmacOSSelf-hosted
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What both publish

FactFuzzinatorJazzer
ConfigurationIt can be customized with configuration files or Python snippets, and includes built-in components for common scenarios.Settings can be supplied through defaults, manifest attributes, environment variables, system properties, JUnit properties or CLI flags.
PurposeFuzzinator automates fuzzing tasks including running test generators against software under test, saving unique issues, reducing failing test cases, updating targets, and scheduling fuzz jobs.Jazzer is a coverage-guided, in-process fuzzer for the JVM based on libFuzzer.

Fuzzinator plans

  • FuzzinatorFree

Jazzer plans

  • JazzerFree
  • Jazzer open-sourceFree

Pick Fuzzinator if…

Fuzzinator suits developers who need to schedule and manage fuzzing jobs across software targets. Users should be prepared to configure generators, issue tracking, and any custom components their setup needs.

Pick Jazzer if…

Jazzer suits developers working on JVM applications who want local coverage-guided fuzzing, including teams using JUnit. It also supports projects targeting JNI or native libraries.

Charts they share