Find the best open-source alternatives

A PowerShell module for remote endpoint threat hunting, scanning for indicators of compromise and collecting system state information.

A minimal Neovim tabline plugin written in Lua, serving as a drop-in replacement for tabline.vim.

A Crystal language port of Foreman for managing Procfile-based applications.

A Windows OpenGL function call interceptor that logs all OpenGL calls for debugging and analysis.

Automatic version management and state recovery tool that works with any language and stores versions in git tags.

A cloud-native search engine optimized for observability data like logs and traces, offering sub-second search on cloud storage.

An open-source ticket selling and event management platform built on Laravel, enabling organizers to avoid third-party fees.

A command-line tool to create modern online books from Markdown files, implemented in Rust.

A Rust tool to verify email address deliverability without sending emails, with CLI, HTTP backend, and library options.

A type-safe, thread-safe LRU memory cache implementation for Swift applications.

A package manager that installs prebuilt Swift command line tool packages, like Homebrew for Swift.

A lightweight C++20 testing framework focused on minimal heap allocation and fast compilation.

A free, open-source, cross-platform 2D CAD application for reading and editing DXF/DWG files and exporting to PDF/SVG.

A self-hosted online file converter supporting over 1000 different formats across documents, images, video, and more.

A Laravel development environment for Linux that runs Nginx and DnsMasq to serve sites on *.test domains.

A native desktop application for the Mattermost open-source collaboration platform, built on Electron.

A composable, all-in-one mail server that implements SMTP, IMAP, DKIM, SPF, DMARC, and more in a single daemon.

A jQuery plugin for responsive zoom of images and other content with scroll, drag, and touch interactions.

A minimalist, single-file kanban board that stores all data locally for offline use.

A JupyterLab extension that embeds the drawio/mxgraph diagramming tool directly into the JupyterLab interface.

A Vue 3 library providing TypeScript decorators for writing Vue components as ES classes.

An open-source Ruby on Rails CRM platform for managing leads, contacts, opportunities, and campaigns with group collaboration.

A lightweight, extremely high-performance, in-place DOM-style JSON parser for C++11.

A PHP package that provides syntax highlighting using Shiki's language engine with support for 100+ languages.

A web control panel for deploying applications on your own servers using Dokku.

A fast, cross-platform image decoding library with clean APIs for C, C++, and Python, supporting 20+ formats.

A lightweight, self-hosted Netflix clone written in C for personal media libraries on low-power hardware.

An open-source Go engine that replicates AlphaGo Zero's architecture, learning solely through self-play without human knowledge.

A Rust DataFrame and data engineering library with PySpark/SQL-like syntax, built for business data pipelines with Microsoft stack integration.

An open-source malware analysis framework that functions as a self-hosted alternative to VirusTotal.

A dependency manager for .NET with support for NuGet packages and Git repositories.

A human-friendly and powerful HTTP request library for Node.js with advanced features like retries, caching, and HTTP/2 support.

A managed JavaScript engine for .NET written in C#, designed for high-performance integration between C# and JavaScript.

A Wagtail add-on for managing scripts and tags with built-in cookie consent and GDPR compliance.

A Laravel Scout driver that adds full-text search to Eloquent models using the TNTSearch engine.

Immutable date and time library for JavaScript, ported from Java's ThreeTen backport with a domain-driven API.