npm94Exceptionalhealth index

dubzzz/fast-checkProperty based testing framework for JavaScript (like QuickCheck) written in TypeScript
TypeScript★ 5,144↓ 140M/moSep 17, 2026
npm · Go90Excellenthealth index

samchon/typiaSuper-fast/easy runtime validators and serializers via transformation
Go · TypeScript★ 5,878↓ 2.3M/moAug 28, 2026
crates.io · npm · Packagist +288Excellenthealth index
Rust★ 666↓ 418K/moSep 5, 2026
npm · PyPI88Excellenthealth index
JavaScript · Python★ 15↓ 2,993/moSep 14, 2026
crates.io · npm87Excellenthealth index
Rust★ 27↓ 166.5K/moOct 7, 2026
PyPI84Excellenthealth index
Python★ 720Sep 9, 2026
npm83Excellenthealth index
TypeScript★ 0↓ 6,700/moSep 15, 2026
crates.io83Excellenthealth index

cpmech/russellRust Scientific Library. ODE, DAE, and PDE solvers. Special functions (Bessel, Elliptic, Beta, Gamma, Erf). Linear algebra. Sparse solvers. Probability distributions. Tensor calculus. Numerical continuation.
Rust★ 193↓ 1,817/moSep 14, 2026
npm80Excellenthealth index

JiangJie/minigame-stdCross-platform standard library for WeChat minigame and web browsers with unified APIs for crypto, fs, fetch, storage, and more.
TypeScript★ 3↓ 3,438/moSep 9, 2026
NuGet80Excellenthealth index
C#★ 1Sep 11, 2026
NuGet80Excellenthealth index
C#★ 0Sep 14, 2026
TypeScript · JavaScript★ 5↓ 3,943/moSep 8, 2026
TypeScript★ 116↓ 260M/moSep 16, 2026

JaCraig/MirageSystem.Random on steroids. The library can be used to generate a random value for any type. It also has the ability to generate email addresses, phone numbers, time zones, company names, names, titles, lorem ipsum, and even entire objects.
C#★ 9Sep 11, 2026

jkomyno/unikuThe fastest collection of unique IDs for TypeScript, with an ergonomic API an binary (de)serialization support
TypeScript★ 17↓ 419.1K/moSep 5, 2026
crates.io75Goodhealth index
Rust★ 26↓ 10.3M/moSep 17, 2026
C#★ 4Oct 20, 2026
JavaScript · TypeScript★ 5↓ 122.1K/moOct 19, 2026

akankov/sentinel-passwordZero-dependency TypeScript password validation — 7 validators, entropy & crack-time estimates, HIBP breach checks, React hook + WCAG AAA component. Core ~6.3KB gzipped.
TypeScript★ 1↓ 357/moOct 21, 2026
crates.io71Goodhealth index

allenap/rust-petnameGenerate human readable random names. Rust port of Dustin Kirkland's petname library.
Rust★ 87↓ 257.8K/moSep 18, 2026

intoli/user-agentsA JavaScript library for generating random user agents with data that's updated daily.
TypeScript · JavaScript★ 1,189↓ 812.5K/moSep 5, 2026
crates.io71Goodhealth index
Rust★ 601↓ 64.7M/moAug 24, 2026

JaCraig/TestFountainA 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
Python★ 185↓ 11M/moAug 27, 2026
JavaScript★ 1↓ 26.3K/moOct 20, 2026
Python★ 79Sep 12, 2026
crates.io69Goodhealth index
Rust★ 54↓ 37.8M/moSep 17, 2026

bfren/rndCryptographically secure random value generators for C# Integer, String (and Passphrase), Guid, DateTime (including DateOnly and TimeOnly) and Byte types.
C#★ 1Sep 18, 2026
C#★ 239Sep 16, 2026
TypeScript★ 220↓ 604.1K/moSep 18, 2026