Open source focus

Open Source Alternatives to NetNut

14 open source Proxy Network options similar to NetNut, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Socket64
Software Supply Chain SecuritySan Francisco, United States$60.0M
Socket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.
Open source
Steel.dev58
Developer ToolsTel Aviv, Israel$17.0M
Cloud-based browser API for AI agents, simplifying web automation with anti-bot protection and session persistence.
Open source · Self-hostable
Backslash Security56
CybersecurityTel Aviv, Israel$27.0M
Agentic endpoint security for AI coding, providing visibility, governance, and real-time protection.
Open source
BrowserUse52
Agentic AISan Francisco, United States$17.0M
Provides tools and services for automated browser testing and scraping.
Open source · Self-hostable
Puck52
Endpoint SecurityUnited States
Open-source, AI-driven endpoint investigation tool for security teams.
Open source · Self-hostable
Magnitude50
Agentic AISan Francisco, United States$10.0M
Open-source, vision-first browser agent for natural language control and web task automation.
Open source · Self-hostable
OWASP38
CybersecurityRaleigh, USA
A global non-profit foundation dedicated to improving software security through open community collaboration.
Open source · Self-hostable
0sec11
Cybersecurity
An applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.
Open source · Self-hostable
Scrapy10
Web ScrapingDublin, Ireland
An open-source framework for fast and powerful web scraping and crawling, maintained by Zyte.
Open source · Self-hostable
Falco10
Cybersecurity
Open-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.
Open source · Self-hostable
Umbrasec9
Cybersecurity
Independent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.
Open source
Puppeteer8
Developer Tools
A Node.js library by Google for controlling Chrome or Chromium through a high-level API.
Open source · Self-hostable
Openthreatgrid8
Cybersecurity
Open honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.
Open source
Bifra6
Open Source
Open-source tool that turns websites into typed REST APIs and MCP servers.
Open source

Company	Sector	License	HQ	Funding	Score
SocketSocket is a software supply chain security company that proactively blocks malicious open-source packages and extensions in AI-driven software development.	Software Supply Chain Security	Open source	San Francisco, United States	$60.0M	64
Steel.devCloud-based browser API for AI agents, simplifying web automation with anti-bot protection and session persistence.	Developer Tools	Open source · Self-hostable	Tel Aviv, Israel	$17.0M	58
Backslash SecurityAgentic endpoint security for AI coding, providing visibility, governance, and real-time protection.	Cybersecurity	Open source	Tel Aviv, Israel	$27.0M	56
BrowserUseProvides tools and services for automated browser testing and scraping.	Agentic AI	Open source · Self-hostable	San Francisco, United States	$17.0M	52
PuckOpen-source, AI-driven endpoint investigation tool for security teams.	Endpoint Security	Open source · Self-hostable	United States	—	52
MagnitudeOpen-source, vision-first browser agent for natural language control and web task automation.	Agentic AI	Open source · Self-hostable	San Francisco, United States	$10.0M	50
OWASPA global non-profit foundation dedicated to improving software security through open community collaboration.	Cybersecurity	Open source · Self-hostable	Raleigh, USA	—	38
0secAn applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.	Cybersecurity	Open source · Self-hostable	—	—	11
ScrapyAn open-source framework for fast and powerful web scraping and crawling, maintained by Zyte.	Web Scraping	Open source · Self-hostable	Dublin, Ireland	—	10
FalcoOpen-source, cloud-native runtime security tool for detecting anomalous application behavior across hosts, containers, and Kubernetes.	Cybersecurity	Open source · Self-hostable	—	—	10
UmbrasecIndependent defensive security research focused on detection engineering, threat analysis, and open-source tooling for defenders.	Cybersecurity	Open source	—	—	9
PuppeteerA Node.js library by Google for controlling Chrome or Chromium through a high-level API.	Developer Tools	Open source · Self-hostable	—	—	8
OpenthreatgridOpen honeynet telemetry, responsible threat intelligence sharing, and reproducible security research workflows for defenders and researchers.	Cybersecurity	Open source	—	—	8
BifraOpen-source tool that turns websites into typed REST APIs and MCP servers.	Open Source	Open source	—	—	6