#performance

A tiny, zero-dependency utility for measuring code execution time in high-resolution real time. Works in Node.js, browsers, Deno and Bun.

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The fastest way to pull values out of JSON in Go — zero allocations, no structs, no full parse

Loop Kernel Analysis and Performance Modeling Toolkit

RSC Static Renderer: A Performant & Efficient Rust-powered HTML for static React boundaries

A lightweight .NET library providing a non-generic interface and type-safe base class for implementing deep cloning functionality in your classes. Supports inheritance hierarchies, circular references, and various collection types including immutable collections. Thread-safe and designed for performance with minimal dependencies.

Memory profiling benchmark style, for Ruby 2.1+

Engineering-first HTTP backend library for Go focused on performance, security, and production-ready architecture.

High-performance structured logging library inspired by Go's slog.

Rust-powered functional toolkit for Python: toolz-compatible API, Option/Result types, and a fluent Iter — benchmarked faster than cytoolz

Visualize and profile GitHub Actions PRs, Commits, Workflows, and Jobs

From-scratch Rust PDF toolkit for Python: fast page rendering and text extraction via PyO3 — benchmarked faster than mainstream Python PDF libraries

Rust based JSON repair library

Really Fast Deep Clone

A high-performance scientific charting engine for web applications.

Laravel package that adds computed attributes to eloquent models. A computed attribute is an accessor were the computed value is saved in the database.

A fast ISO8601 date parser for Go

.net enterprise micro-ORM

Laravel Model Cache is an efficient and easy-to-implement caching solution for Laravel Eloquent models. It provides automatic cache invalidation when models are created, updated, deleted, or restored.

A C/C++ header file for fast 32-bit division remainders (and divisibility tests) on 64-bit hardware.

High-resolution JavaScript timer based on performance.mark/measure (491 bytes min+gz)