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Most searched proprietary tools with open-source replacements

Hoppscotch
Postman29 alts

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

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Payload
WordPress21 alts

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Insomnia18 alts

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

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Browse all

Showing 2,626 products with open-source alternatives

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Matrix
Sococo1 alts

An open-source virtual office platform for distributed teams to work together in shared online spaces.

JavaScript905
ember-cloud-firestore-adapter
EmberFire1 alts

An unofficial Ember Data Adapter and Serializer for Cloud Firestore with realtime bindings and FastBoot support.

TypeScript70
Andromeda
Deno1 alts

A modern, fast, and secure JavaScript & TypeScript runtime built in Rust, featuring zero-config TypeScript and rich Web APIs.

Rust828
Pmndrs Market
TurboSquid1 alts

A free marketplace for CC0-licensed 3D assets, models, textures, and HDRI files ready for use in Three.js and React Three Fiber projects.

JavaScript278
fastcache
evalcache1 alts

A Zsh plugin that caches command and completion output to accelerate shell startup with automatic background updates.

Shell51
WireGuard
IPsec1 alts

A fast, modern, secure kernel-based VPN tunnel using state-of-the-art cryptography.

C2.3k
Microlight
Penlight1 alts

A lightweight Lua utility library providing essential functions for strings, files, tables, and classes, as a minimal alternative to Penlight.

Lua188
Utf8Json
Json.NET1 alts

A high-performance, zero-allocation JSON serializer for C# that reads/writes directly to UTF8 binary.

C#2.4k
HAL – The Hardware Analyzer
IDA1 alts

A comprehensive netlist reverse engineering and manipulation framework for hardware analysis, akin to IDA or Ghidra for hardware.

C++800
elbencho
fio1 alts

A distributed storage benchmark tool for file systems, object stores, and block devices with GPU support.

C++269
Drydock
Watchtower1 alts

An open-source container update monitoring tool with a modern dashboard, supporting 23 registries, 20 notification triggers, and automated updates.

TypeScript204
JavaCPP
SWIG1 alts

A Java library providing efficient, zero-overhead access to native C++ code using JNI and annotations.

Java4.7k
Maintenant
Uptime Kuma1 alts

A unified, zero-config monitoring solution for Docker and Kubernetes that auto-discovers containers, endpoints, certificates, and more in a single container.

Go335
btop
bpytop1 alts

A terminal-based resource monitor for CPU, memory, disks, network, processes, and GPU with a responsive UI and full mouse support.

C++32.8k
CrashCatch
Sentry Native1 alts

A cross-platform, single-header crash-reporting library for modern C++ applications that generates .dmp and .txt crash logs.

C++88
Mago
PHP-CS-Fixer1 alts

An extremely fast PHP linter, formatter, and static analyzer written in Rust.

Rust3.2k
Rerun
Autotest1 alts

A lightweight Ruby tool that automatically restarts applications when filesystem changes are detected.

Ruby991
termion
Termbox1 alts

A pure Rust, bindless library for low-level terminal handling, manipulation, and reading.

Rust2.2k
tambourine-voice
Willow1 alts

An open-source voice dictation tool that types your speech at the cursor in any application, powered by customizable AI transcription and formatting.

Rust362
Flexi
Foundation1 alts

A responsive layout framework for Ember.js focused on performance and maintainability with minimal runtime overhead.

JavaScript217
InnerWarden
Wazuh1 alts

An autonomous open-source security agent for Linux that detects, scores, and automatically responds to threats using eBPF, AI, and collaborative defense.

Rust155
Adminer
pgAdmin1 alts

A full-featured database management tool written in a single PHP file, supporting MySQL, PostgreSQL, SQLite, and more.

PHP7.4k
Ruby.app
RubyMotion1 alts

A macOS application wrapper that packages a full Ruby installation for deploying Ruby apps and games.

Ruby48
Pmndrs Market
CGTrader1 alts

A free marketplace for CC0-licensed 3D assets, models, textures, and HDRI files ready for use in Three.js and React Three Fiber projects.

JavaScript278
LaMa
GMapping1 alts

A C++11 library for efficient robotic localization and mapping, designed for low-resource hardware like Raspberry Pi.

C++351
Simple Graphs
JGraphT1 alts

A lightweight Java library providing basic graph data structures and algorithms with no dependencies.

Java52
LastSaaS
MakerKit1 alts

A production-ready SaaS boilerplate built with Go and React, featuring multi-tenancy, Stripe billing, white-label branding, and AI-agent ready architecture.

Go113
Apache Artemis (k)
IBM MQ1 alts

A high-performance, multi-protocol message broker supporting AMQP, MQTT, and STOMP for diverse messaging use cases.

Java1.0k
nlp.js
Microsoft LUIS1 alts

A modular natural language processing library for Node.js and React Native, designed for building multilingual chatbots and language utilities.

JavaScript6.6k
Modal File Manager
fman1 alts

A dual-pane file manager with Vim-style modal hotkeys, built with Svelte and Wails for cross-platform desktop use.

Svelte168
remodel
ActiveModel::Serializer1 alts

An Elixir presenter package for transforming map structures, enabling flexible API output serialization.

Elixir141
Drydock
Ouroboros1 alts

An open-source container update monitoring tool with a modern dashboard, supporting 23 registries, 20 notification triggers, and automated updates.

TypeScript204
ClearDisk
SquirrelDisk1 alts

A free macOS menu bar app that visualizes and cleans developer caches (Xcode, npm, Docker, etc.) to reclaim disk space.

Swift354
jsonapi-serializer
ActiveModelSerializer1 alts

A fast JSON:API serializer for Ruby objects, forked from Netflix/fast_jsonapi.

Ruby1.4k
qBittorrent
Vuze1 alts

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

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