# assetfinder

assetfinder is an External Attack Surface Management product. It runs on-premises. Pricing is free.

A command-line tool for discovering domains and subdomains related to a target domain during reconnaissance activities.

Checked October 2026.

## What is assetfinder?

assetfinder is a command-line tool designed for domain and subdomain discovery during reconnaissance activities.

The tool accepts a target domain as input and searches for related domains and subdomains that may be associated with the target organization. It provides options to save results to output files and control the scope of the search through configurable parameters.

Key features include:
- Subdomain enumeration for a given domain
- Output results to specified files
- Configurable result limits to control search scope
- Multi-threaded operation for improved performance
- Command-line interface for integration into security workflows

The tool is commonly used in the reconnaissance phase of security assessments to identify potential attack surfaces and discover additional assets belonging to a target organization.

Tags: Enumeration, Reconnaissance, Network Reconnaissance, Subdomain Enumeration

## Where it fits in your security program (NIST CSF 2.0)

- [Identify](https://cybersectools.com/guides/building-identify-program-small-team): helps you know your assets and your risks.

## Quick facts

- Category: [Exposure & Vulnerability Management](https://cybersectools.com/categories/exposure-vulnerability-management) · [External Attack Surface Management](https://cybersectools.com/categories/external-asm)
- Deployment: On-Premises
- Company size fit: Startup, SMB, Mid-Market, Enterprise
- Pricing model: Free
- GitHub stars: 3,393
- Website: github.com

## Where it ranks

assetfinder is not a pick on the current [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions).

## assetfinder FAQ

### What is assetfinder?

assetfinder is a product in the External Attack Surface Management category. It covers Enumeration, Reconnaissance and Network Reconnaissance.

### What is the pricing for assetfinder?

assetfinder is free. Download and setup instructions are at https://github.com/tomnomnom/assetfinder/.

### What are alternatives to assetfinder?

Alternatives to assetfinder listed on CybersecTools:

1. [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev) - Fast Certificate Transparency search and JSON API for subdomain reconnaissance. (Commercial)
2. [MGM Security Partners recon me](https://cybersectools.com/tools/mgm-security-partners-recon-me) (Commercial)
3. [Cylana EASM](https://cybersectools.com/tools/cylana-easm) - AI-powered EASM platform for digital asset discovery and monitoring. (Commercial)
4. [TRaViS](https://cybersectools.com/tools/travis) - AI-enhanced EASM platform for external attack surface discovery and monitoring. (Commercial)
5. [SurfaceDiff](https://cybersectools.com/tools/surfacediff) - Continuous external attack surface monitoring that shows what changed between scans. (Commercial)

Compare all assetfinder alternatives at [https://cybersectools.com/alternatives/assetfinder](https://cybersectools.com/alternatives/assetfinder)

### What deployment and organization size does assetfinder fit?

assetfinder is available as on-premises software. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.

## Compare assetfinder with similar solutions

- [assetfinder vs ctlogs.dev](https://cybersectools.com/compare/assetfinder-vs-ctlogsdev)
- [assetfinder vs MGM Security Partners recon me](https://cybersectools.com/compare/assetfinder-vs-mgm-security-partners-recon-me)
- [assetfinder vs Cylana EASM](https://cybersectools.com/compare/assetfinder-vs-cylana-easm)

All alternatives to assetfinder: [/alternatives/assetfinder](https://cybersectools.com/alternatives/assetfinder)

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Source: https://cybersectools.com/tools/assetfinder

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More on assetfinder: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md