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Find the best open-source alternatives

Discover community-driven replacements for popular proprietary software.

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Popular products

Most searched proprietary tools with open-source replacements

Hoppscotch
Postman31 alts

An open-source API development ecosystem for testing HTTP, WebSocket, GraphQL, and other APIs with real-time collaboration.

TypeScript79.9k
Official examples
WordPress22 alts

An open-source, fullstack Next.js framework that provides a TypeScript backend and admin panel, usable as a headless CMS or for building applications.

TypeScript43.8k
joplin
Evernote21 alts

A privacy-focused, open-source note-taking app with end-to-end encrypted sync across all major platforms.

TypeScript55.7k
stdlib
NumPy20 alts

A standard library for JavaScript and TypeScript with an emphasis on numerical and scientific computation.

JavaScript5.9k

Browse all

Showing 2,872 products with open-source alternatives

PopularRecently addedA–Z
FACTORIE
MALLET1 alts

A Scala toolkit for deployable probabilistic modeling using imperatively-defined factor graphs.

Scala552
vue-flow
React Flow1 alts

A highly customizable Vue 3 component library for building interactive flowcharts and node-based diagrams.

TypeScript6.7k
stateloom
Valtio1 alts

A universal state management SDK offering signal-based reactivity with three paradigms (Store, Atom, Proxy) and support for all major JavaScript frameworks.

TypeScript1
pci-blackbox
Stripe1 alts

A PCI-DSS compliant card data handling system built on PostgreSQL and PL/pgSQL for secure payment processing.

Perl5
Corectl App for macOS
VirtualBox1 alts

A macOS status bar app that controls the corectld server daemon for running CoreOS VMs using native macOS Hypervisor.

Swift165
Corman Lisp
Allegro Common Lisp1 alts

A Common Lisp development environment with a native code compiler for Intel processors, fully integrated with the Win32 API.

Common Lisp588
postgres
Microsoft SQL Server1 alts

An advanced, open-source object-relational database management system supporting SQL standards, transactions, and extensibility.

C21.5k
Depends
Understand1 alts

A fast, extensible multi-language dependency extraction tool for code analysis and visualization.

Java255
markdown-plus.nvim
Mark Text1 alts

A comprehensive Neovim plugin providing modern Markdown editing capabilities with zero dependencies.

Lua278
rcm.cr
redis-trib.rb1 alts

A Redis cluster management tool written in Crystal, providing CLI and HTTP interfaces for cluster creation, monitoring, and administration.

Crystal45
Apache Cloudberry
Greenplum Database1 alts

An advanced open-source MPP database for data warehousing, large-scale analytics, and AI/ML workloads.

C1.2k
LRM
Zeta Resource Editor1 alts

A cross-platform CLI tool and TUI editor for managing .NET .resx and other localization files with validation, translation, and CI/CD automation.

CSS50
pencil
Balsamiq1 alts

An open-source diagramming and GUI prototyping tool built on Electron for creating diagrams and mockups.

JavaScript9.8k
MagicOnion
WCF1 alts

A modern RPC framework for .NET and Unity that provides unified real-time communication and API services using gRPC.

C#4.4k
neurolab
MATLAB Neural Network Toolbox1 alts

A simple and powerful neural network library for Python with a MATLAB-like API and flexible configuration.

Python168
altcover
OpenCover1 alts

A cross-platform .NET code coverage tool that instruments assemblies via IL weaving for Mono, .NET Framework, and .NET Core.

F#531
babel
GNU libiconv1 alts

A pure Common Lisp library for charset encoding and decoding, similar to GNU libiconv.

Common Lisp102
terraform-provider-plancost
Infracost1 alts

A Terraform provider for estimating, tracking, and optimizing cloud costs directly within Terraform workflows, with extensive Azure support.

Go5
statsforecast
Prophet1 alts

A Python library for lightning-fast univariate time series forecasting with optimized statistical and econometric models.

Python4.8k
WebHostingHub Glyphs
Glyphicons1 alts

A comprehensive font icon set with 2075+ glyphs designed for compatibility with Bootstrap and other frameworks.

267
goose.nvim
Cursor AI1 alts

A Neovim plugin that integrates the Goose AI agent, enabling chat and code assistance with editor context capture.

Lua314
Servy
WinSW1 alts

Run any executable as a native Windows service with automatic restarts, health checks, and real-time management.

C#1.9k
OpenMage
Magento Community Edition1 alts

Community-driven long-term support fork of Magento Community Edition with security patches, bug fixes, and performance improvements.

PHP925
qBittorrent
uTorrent1 alts

A free and open-source BitTorrent client written in C++/Qt, offering a fast, stable, and feature-rich alternative to other clients.

C++38.9k
HAP-HomeMatic
HomeBridge (HomeMatic plugin)1 alts

A HomeMatic CCU3 addon that brings HomeKit support to your HomeMatic devices without requiring extra hardware.

JavaScript220
ConvertX
Zamzar1 alts

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

TypeScript17.2k
Oniguruma-To-ES
vscode-oniguruma1 alts

Translates Oniguruma regex patterns (used by Ruby, TextMate, VS Code) to native JavaScript RegExp with high accuracy.

JavaScript148
working_hours
biz1 alts

A Ruby gem for performing time calculations based on business hours, holidays, and custom working schedules.

Ruby537
EtlBox.Classic
SQL Server Integration Services (SSIS)1 alts

A lightweight ETL library and data integration toolbox for .NET, enabling programmatic data flow pipelines.

C#34
mimetype
file1 alts

A Go package for detecting MIME types and file extensions based on magic numbers, prioritizing common formats and supporting extension.

Go2.0k
Rack::App
Grape1 alts

A minimalist Ruby web framework for building Rack applications with a focus on simplicity, maintainability, and performance.

Ruby410
MongoFramework
Entity Framework Core (for MongoDB scenarios)1 alts

A C# library providing an Entity Framework-like interface for MongoDB, featuring change tracking, fluent mapping, and entity buckets.

C#399
STTwitter
Twitter Fabric TwitterKit1 alts

A stable, mature Objective-C library for Twitter's REST API 1.1, offering comprehensive access and flexible authentication.

Objective-C990
Skymdb
IMDb1 alts

A community-maintained movie database built on the AT Protocol, offering IMDb/TMDB-like functionality.

TypeScript10
vmn
bump2version1 alts

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

Python65
Neon
AWS Aurora1 alts

A curated list of starters, examples, guides, and resources for the Neon serverless Postgres database.

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