Packagist98Exceptionalhealth index
PHP★ 2,239↓ 1.5M/moSep 5, 2026
PyPI95Exceptionalhealth index
HTML · Python★ 179Jul 21, 2026
RubyGems95Exceptionalhealth index
Ruby★ 265Jul 18, 2026
PyPI94Exceptionalhealth index
Python · HTML★ 3,393Jul 16, 2026
RubyGems · npm94Exceptionalhealth index

simplecov-ruby/simplecovCode coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites
Ruby · TypeScript★ 4,919Aug 28, 2026
PyPI91Excellenthealth index

gcovr/gcovrGenerate code coverage reports with gcc/gcov
Python★ 992↓ 3.4M/moAug 27, 2026
crates.io90Excellenthealth index

taiki-e/cargo-llvm-covCargo subcommand to easily use LLVM source-based code coverage (-C instrument-coverage).
Rust★ 1,449↓ 493.1K/moAug 18, 2026
C#★ 3,166Jul 16, 2026
Packagist89Excellenthealth index
PHP · HTML★ 8,925↓ 16.5M/moAug 27, 2026
RubyGems · crates.io87Excellenthealth index
mbj/mutantMutation testing for Ruby. AI writes your code. AI writes your tests. But who tests the tests?
Ruby★ 2,170Jul 20, 2026
npm81Excellenthealth index
TypeScript★ 18↓ 111M/moAug 4, 2026
npm81Excellenthealth index
JavaScript★ 5,767↓ 35.4M/moAug 12, 2026
RubyGems81Excellenthealth index
Ruby · Shell★ 10Jul 17, 2026
npm80Excellenthealth index

bcoe/c8output coverage reports using Node.js' built in coverage
JavaScript★ 2,119↓ 17.7M/moAug 27, 2026
npm · PyPI · crates.io80Excellenthealth index
jeremylongshore/intent-audit-harnessDeterministic test-policy enforcement and AI-proof containment for source repo quality gates. Hash-pins engineer-owned testing config so AI-proposed threshold weakening is blocked at pre-commit. Includes escape-scan, CRAP, architecture, bias, and Gherkin-lint gates.
Shell · Python★ 1↓ 6,148/moAug 1, 2026
Python★ 2,054↓ 225M/moAug 4, 2026
RubyGems78Goodhealth index
Ruby★ 210Jul 20, 2026
crates.io · npm77Goodhealth index
CorvidLabs/spec-sync📐 Bidirectional spec-to-code validation. CI-enforced contract checking between docs and code.
Rust★ 5↓ 112/moJul 16, 2026
Packagist · PyPI77Goodhealth index
PHP★ 62↓ 105K/moJul 28, 2026

iFaxity/vite-plugin-istanbulA Vite plugin to instrument code for nyc/istanbul code coverage. In similar way as the Webpack Loader istanbul-instrumenter-loader. Only intended for use in development.
TypeScript★ 119↓ 4.1M/moAug 27, 2026

rtl-buddy/rtl_buddyRTL Buddy is a Python CLI for Verilog and SystemVerilog regression testing, Verilator and VCS simulation workflows, coverage, and YAML-based RTL verification automation.
Python★ 3↓ 3,758/moAug 15, 2026
JavaScript★ 1↓ 14K/moJul 25, 2026
Packagist75Goodhealth index
PHP★ 35↓ 406.6K/moJul 16, 2026
SteveGilham/altcoverCross-platform coverage gathering and processing tool set for dotnet/.Net Framework and Mono
F#★ 531Aug 4, 2026
TypeScript★ 15Jul 26, 2026
crates.io · npm71Goodhealth index
Rust · JavaScript★ 22Jul 17, 2026
Packagist69Goodhealth index
kahlan/kahlan:heavy_check_mark: PHP Test Framework for Freedom, Truth, and Justice
PHP★ 1,148↓ 20.4K/moJul 21, 2026
JavaScript★ 3↓ 3,979/moAug 3, 2026
istanbuljs/istanbuljsmonorepo containing the various nuts and bolts that facilitate istanbul.js test instrumentation
JavaScript★ 1,101↓ 1.5B/moAug 4, 2026
crates.io65Goodhealth index
Rust★ 371↓ 2,777/moJul 19, 2026