# UPX

UPX is a Red-Team & Adversary Emulation product. It runs on-premises. Pricing is free.

UPX is a high-performance executable packer for various executable formats.

## What is UPX?

UPX is an advanced executable file compressor that typically reduces the file size of programs and DLLs by around 50%-70%, making them self-contained and running exactly as before. It supports various executable formats including Windows, macOS, and Linux, is secure, offers excellent compression ratio, very fast decompression, and has no memory overhead for compressed executables.

Tags: Binary Analysis

## Quick facts

- Category: [Offensive Security](https://cybersectools.com/categories/offensive-security-testing) · [Red-Team & Adversary Emulation](https://cybersectools.com/categories/offensive-security)
- Deployment: On-Premises
- Company size fit: Startup, SMB, Mid-Market, Enterprise
- Pricing model: Free
- Website: upx.sourceforge.net

## UPX FAQ

### What is UPX?

UPX is a product in the Red-Team & Adversary Emulation category. It covers Binary Analysis.

### What is the pricing for UPX?

UPX is free. Download and setup instructions are at https://upx.sourceforge.net/.

### What are alternatives to UPX?

Alternatives to UPX listed on CybersecTools:

1. [Fortra Cobalt Strike](https://cybersectools.com/tools/fortra-cobalt-strike) - Threat emulation product for adversary simulations and red team operations (Commercial)
2. [Trickest Attack Surface Management](https://cybersectools.com/tools/trickest-attack-surface-management) - Platform for offensive security operations including ASM, VA, and DAST (Commercial)
3. [GoSecure Titan® Adversarial Simulation](https://cybersectools.com/tools/gosecure-titanr-adversarial-simulation) - Human-led adversary emulation service testing detection & response capabilities (Commercial)
4. [Core Security Cobalt Strike](https://cybersectools.com/tools/core-security-cobalt-strike) - Post-exploitation threat emulation platform for red team operations. (Commercial)
5. [Dreadnode Offensive Security Agents](https://cybersectools.com/tools/dreadnode-offensive-security-agents) - AI agent platform for automating offensive security operations and evals. (Commercial)

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

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

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

## Compare UPX with similar solutions

- [UPX vs Fortra Cobalt Strike](https://cybersectools.com/compare/fortra-cobalt-strike-vs-upx)
- [UPX vs Trickest Attack Surface Management](https://cybersectools.com/compare/trickest-attack-surface-management-vs-upx)
- [UPX vs GoSecure Titan® Adversarial Simulation](https://cybersectools.com/compare/gosecure-titanr-adversarial-simulation-vs-upx)

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

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

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More on UPX: 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