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#fuzzing

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

38 records
Tagged “fuzzing”Ranked by health index
PyPI
97Exceptionalhealth index
schemathesis/schemathesis
Catch API bugs before your users do
Python★ 3,601↓ 3.4M/moSep 16, 2026
MITSep 16, 2026 · metrics 2.10.0
crates.io
96Exceptionalhealth index
AFLplusplus/LibAFL
Advanced Fuzzing Library - Slot your Fuzzer together in Rust! Scales across cores and machines. For Windows, Android, MacOS, Linux, no_std, ...
Rust★ 2,640↓ 45.3K/moSep 17, 2026
Custom licenseSep 17, 2026 · metrics 2.10.0
crates.io
96Exceptionalhealth index
foundry-rs/foundry
Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.
Rust★ 10.6K↓ 3/moAug 28, 2026
Apache-2.0Aug 28, 2026 · metrics 2.10.0
PyPI
94Exceptionalhealth index
HypothesisWorks/hypothesis
The property-based testing library for Python
Python★ 8,915↓ 51.1M/moAug 28, 2026
Custom licenseAug 28, 2026 · metrics 2.10.0
npm
94Exceptionalhealth index
dubzzz/fast-check
Property based testing framework for JavaScript (like QuickCheck) written in TypeScript
TypeScript★ 5,144↓ 140M/moSep 17, 2026
MITSep 17, 2026 · metrics 2.10.0
crates.io
93Exceptionalhealth index
trailofbits/test-fuzz
To make fuzzing Rust easy
Rust★ 208↓ 371.6K/moSep 15, 2026
AGPL-3.0Sep 15, 2026 · metrics 2.10.0
PyPI
90Excellenthealth index
pschanely/CrossHair
An analysis tool for Python that blurs the line between testing and type systems.
Python★ 1,323↓ 349.3K/moSep 9, 2026
Custom licenseSep 9, 2026 · metrics 2.10.0
crates.io
86Excellenthealth index
foundry-rs/foundryup
Foundry toolchain manager
Rust★ 13↓ 41/moSep 6, 2026
Apache-2.0Sep 6, 2026 · metrics 2.10.0
PyPI · crates.io
84Excellenthealth index
maurosoria/dirsearch
Web path scanner
Python · Rust★ 15K↓ 18.5K/moOct 19, 2026
No licenseOct 19, 2026 · metrics 2.10.0
Packagist · npm
84Excellenthealth index
studio-design/gesso
Gesso — OpenAPI 3.0/3.1/3.2 contract testing for PHP. Framework-independent core with Laravel, Symfony, Pest, and PSR-7 adapters. PHPUnit coverage, request/response validation, fuzzing, and drift detection.
PHP★ 9↓ 2,422/moSep 6, 2026
MITSep 6, 2026 · metrics 2.10.0
RubyGems
81Excellenthealth index
0dayInc/pwn
PWN is an open security automation framework that aims to stand on the shoulders of security giants, promoting trust and innovation.
Ruby★ 78Sep 5, 2026
MITSep 5, 2026 · metrics 2.10.0
PyPI
80Excellenthealth index
MozillaSecurity/prefpicker
Manage & generate prefs.js files
Python★ 12↓ 22.3K/moSep 8, 2026
MPL-2.0Sep 8, 2026 · metrics 2.10.0
PyPI
75Goodhealth index
bazel-contrib/rules_fuzzing
Bazel Starlark extensions for defining fuzz tests in Bazel projects
Starlark · C++★ 93Sep 23, 2026
Apache-2.0Sep 23, 2026 · metrics 2.10.0
NuGet
69Goodhealth index
JaCraig/TestFountain
A library used for test fuzzing. Uses Mirage and attaches to xUnit as a Theory data source to create random data based on the annotations placed on the class. By default it saves the information used in each test so you can go back and retest as needed.
C#★ 1Sep 9, 2026
Apache-2.0Sep 9, 2026 · metrics 2.10.0
crates.io
67Goodhealth index
declanvk/blart
No repository description published.
Rust★ 69↓ 3,682/moSep 25, 2026
Apache-2.0Sep 25, 2026 · metrics 2.10.0
PyPI
65Goodhealth index
MozillaSecurity/autobisect
Automatic Bisection Firefox and SpiderMonkey Bugs
Python★ 8↓ 2,684/moSep 14, 2026
MPL-2.0Sep 14, 2026 · metrics 2.10.0
Go
65Goodhealth index
UnSubble/searchit
Fast and smart content discovery tool with profiles, recursive scanning and technology-aware enumeration.
Go★ 1Oct 21, 2026
MITOct 21, 2026 · metrics 2.10.0
crates.io
65Goodhealth index
rust-fuzz/honggfuzz-rs
Fuzz your Rust code with Google-developed Honggfuzz !
Rust · Shell★ 502↓ 215.6K/moSep 17, 2026
Apache-2.0Sep 17, 2026 · metrics 2.10.0
crates.io
63Moderatehealth index
rust-fuzz/libfuzzer
Rust bindings and utilities for LLVM’s libFuzzer
C++★ 267↓ 5.1M/moSep 17, 2026
Apache-2.0Sep 17, 2026 · metrics 2.10.0
PyPI
62Moderatehealth index
MozillaSecurity/lithium
Line-based testcase reducer
Python★ 107↓ 43.2K/moOct 18, 2026
MPL-2.0Oct 18, 2026 · metrics 2.10.0
crates.io
62Moderatehealth index
camshaft/bolero
property testing and verification front-end for Rust
C · C++ · Rust★ 256↓ 3.2M/moAug 27, 2026
MITAug 27, 2026 · metrics 2.10.0
crates.io
62Moderatehealth index
firedancer-io/protosol
A repository for Protobuf definitions
Rust★ 4↓ 87.4K/moSep 9, 2026
Custom licenseSep 9, 2026 · metrics 2.10.0
crates.io
59Moderatehealth index
santhreal/wafrift
WAF evasion testing toolkit. Grammar + encoding mutation, dialect-specific bypasses, evolutionary search, per-WAF gene-bank persistence. Rust.
Rust★ 24Oct 4, 2026
Apache-2.0Oct 4, 2026 · metrics 2.10.0
Go
53Moderatehealth index
MyCode83/godirb
Fast and easy-to-use directory brute-forcer written in Go.
Go★ 5Sep 8, 2026
MITSep 8, 2026 · metrics 2.10.0
PyPI
53Moderatehealth index
cyberark/QuicDrawH3
QuicDraw(H3) is A security research tool designed for fuzzing and racing HTTP/3 servers. QuicDraw implements the `Quic-Fin-Sync` on HTTP/3 (over QUIC) for race-condition testing.
Python★ 26↓ 45/moOct 4, 2026
Apache-2.0Oct 4, 2026 · metrics 2.10.0
npm
53Moderatehealth index
iAMv1/omnisectester
Nation-state grade, defense-in-depth security testing framework. Tests web apps, extensions, desktop, mobile, cloud, AI/LLM, hardware, and supply chain from a single CLI.
JavaScript★ 0↓ 2,133/moSep 22, 2026
MITSep 22, 2026 · metrics 2.10.0
crates.io
45Weakhealth index
Keysweep/Keysweep
A fast, modular security testing toolkit written in Rust for bruteforcing, fuzzing, and hash cracking.
Rust★ 2Sep 12, 2026
MITSep 12, 2026 · metrics 2.10.0
Go · PyPI
45Weakhealth index
MoustafaAt1a/otcat
The netcat for industrial I/O — read, write, and watch Modbus TCP registers from the shell.
Go · Python★ 1Oct 21, 2026
MITOct 21, 2026 · metrics 2.10.0
Go
36Weakhealth index
CypherNova1337/paramvoid
Fast HTTP parameter discovery - finds the undocumented query and body parameters a server quietly accepts. Single static Go binary, bundled wordlist, no dependencies.
Go★ 0Oct 13, 2026
MITOct 13, 2026 · metrics 2.10.0