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Best Productivity ResourcesBy Shushant LakhyaniVerified creator

Web App

OpenASM

An AI-powered, open-source platform for attack surface management.

Visit OpenASM4.3

  • Rating

    4.3 / 5

  • Pricing

    Free

  • Difficulty

    Advanced

  • Works on

    Web, Cross-Platform

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What is OpenASM?

OpenASM (OASM) is an open-source, AI-powered platform for attack surface management. It helps security teams discover and monitor the internet-facing assets of their organisation and spot exposures.

Third-party open-source projects. We are not affiliated with their authors; repositories are provided as-is by their maintainers. Review each project's license, code and security before installing. See our Disclaimer.

Pros: what OpenASM does well

  • Free alternative to commercial ASM tools
  • AI-assisted asset discovery
  • Self-hostable

Cons: where it falls short

  • GPL-3.0 licence has copyleft terms
  • Only scan assets you own or are authorised to test

Who OpenASM is for

Security teams who need to track their organisation's exposed assets.

Who can skip it

People without a security use case.

OpenASM alternatives

Not sold on OpenASM? These do a similar job, and each card says what it has in common.

All Research resources

Any.run

Focus: Malware Analysis, Cybersecurity and Automation. Shares Security with OpenASM. Freemium (OpenASM: Free). Rated 4.7 (OpenASM: 4.3).

Web AppFree planWeb
4.7Visit

Aliens Eye

Focus: osint, username search and social media. Shares ai and open source with OpenASM. A website, not a web app. Adds Linux. Rated 4.6 (OpenASM: 4.3).

WebsiteFreeWeb, Linux
4.6Visit

Open Code Review

Focus: code review, llm agent and developer tools. Shares open source and security with OpenASM. An AI tool, not a web app. Adds Linux, macOS and Windows. Rated 4.6 (OpenASM: 4.3).

AI ToolFreeLinux, macOS
4.6Visit

ECC Tools

Focus: ai agents, github app and automation. Shares security and open source with OpenASM. An AI tool, not a web app. Rated 4.5 (OpenASM: 4.3).

AI ToolFreeWeb
4.5Visit

Kong

Focus: reverse engineering, ai agents and binary analysis. Shares security and open source with OpenASM. An AI tool, not a web app. Adds macOS, Windows and Linux. Rated 4.5 (OpenASM: 4.3).

AI ToolFreemacOS, Windows
4.5Visit

mulder

Focus: dfir, forensics and incident response. Shares security and open source with OpenASM. An AI tool, not a web app. Adds macOS, Windows and Linux. Same 4.3 rating.

AI ToolFreemacOS, Windows
4.3Visit

Free alternatives to OpenASM

Want to spend nothing? These free picks cover similar ground.

Uptime Kuma

Focus: monitoring, uptime and status page. Shares open source with OpenASM. Rated 4.7 (OpenASM: 4.3).

Web AppFreeWeb
4.7Visit

changedetection.io

Focus: website monitoring, change alerts and price tracking. Shares open source with OpenASM. Rated 4.6 (OpenASM: 4.3).

Web AppFreeWeb, Cross-Platform
4.6Visit

Gatus

Focus: monitoring, status page and uptime. Shares open source with OpenASM. Rated 4.6 (OpenASM: 4.3).

Web AppFreeWeb
4.6Visit

Healthchecks

Focus: cron, monitoring and scheduled jobs. Shares open source with OpenASM. Rated 4.6 (OpenASM: 4.3).

Web AppFreeWeb
4.6Visit
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