# Subra

Subra is an External Attack Surface Management product. It runs in the cloud. Pricing is free.

A simple web-based interface for subdomain enumeration using the subfinder tool.

Checked October 2026.

## What is Subra?

A Web-UI for subdomain enumeration (subfinder)

A simple web-based interface for subdomain enumeration using the subfinder tool.

Features:

* Easy to use interface for subdomain enumeration
* Supports multiple subdomain enumeration tools
* Results are displayed in a table with filtering and sorting options

Note: This tool is for educational purposes only and should not be used for malicious activities.

Tags: Subdomain Enumeration

## Quick facts

- Category: [Exposure & Vulnerability Management](https://cybersectools.com/categories/exposure-vulnerability-management) · [External Attack Surface Management](https://cybersectools.com/categories/external-asm)
- Deployment: Cloud
- Company size fit: Startup, SMB
- Pricing model: Free
- GitHub stars: 54
- Website: github.com

## Where it ranks

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

## Subra FAQ

### What is Subra?

Subra is a product in the External Attack Surface Management category. It covers Subdomain Enumeration.

### What is the pricing for Subra?

Subra is free. Download and setup instructions are at https://github.com/si9int/Subra/.

### What are alternatives to Subra?

Alternatives to Subra listed on CybersecTools:

1. [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev) - Fast Certificate Transparency search and JSON API for subdomain reconnaissance. (Commercial)
2. [Detectify Platform](https://cybersectools.com/tools/detectify-platform) - Platform for external attack surface management and application security testing (Commercial)
3. [Halo Security Attack Surface Discovery](https://cybersectools.com/tools/halo-security-attack-surface-discovery) - Discovers and inventories internet-facing assets including subdomains, IPs, and apps. (Commercial)
4. [Intruder Discover Attack Surface](https://cybersectools.com/tools/intruder-discover-attack-surface) - Attack surface management platform for discovering and securing exposed assets (Commercial)
5. [Searchlight Exposure](https://cybersectools.com/tools/assetnote-attack-surface-management-tool) - ASM platform that scans external attack surfaces hourly for vulnerabilities (Commercial)

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

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

Subra is available as a cloud service. It is listed for startups and small businesses. It is free.

## Compare Subra with similar solutions

- [Subra vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-subra)
- [Subra vs Detectify Platform](https://cybersectools.com/compare/detectify-platform-vs-subra)
- [Subra vs Halo Security Attack Surface Discovery](https://cybersectools.com/compare/halo-security-attack-surface-discovery-vs-subra)

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

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

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More on Subra: 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