# Zscaler Internet Access alternatives

The highest-scoring alternative to Zscaler Internet Access in Firewalls is **Check Point Quantum** (58/100), against Zscaler Internet Access's 58/100. Ranked on independent signals, not user reviews. No vendor pays for placement.

| # | Alternative | Score | Confidence | Compare |
|--:|---|--:|---|---|
| 1 | [Check Point Quantum](https://www.vioscale.ai/software/check-point-quantum) | 58 | 19% (low) | [Zscaler Internet Access vs Check Point Quantum](https://www.vioscale.ai/compare/check-point-quantum-vs-zscaler-internet-access) |
| 2 | [VyOS](https://www.vioscale.ai/software/vyos) | 43 | 26% (low) | [Zscaler Internet Access vs VyOS](https://www.vioscale.ai/compare/vyos-vs-zscaler-internet-access) |
| 3 | [pfSense](https://www.vioscale.ai/software/pfsense) | 42 | 26% (low) | [Zscaler Internet Access vs pfSense](https://www.vioscale.ai/compare/pfsense-vs-zscaler-internet-access) |
| 4 | [Sophos Firewall](https://www.vioscale.ai/software/sophos-firewall) | 22 | 3% (low) | [Zscaler Internet Access vs Sophos Firewall](https://www.vioscale.ai/compare/sophos-firewall-vs-zscaler-internet-access) |
| 5 | [Palo Alto Networks NGFW](https://www.vioscale.ai/software/palo-alto-networks-ngfw) | 20 | 3% (low) | [Zscaler Internet Access vs Palo Alto Networks NGFW](https://www.vioscale.ai/compare/palo-alto-networks-ngfw-vs-zscaler-internet-access) |

Zscaler Internet Access itself ranks #1 of 6 in Firewalls.

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*Source: Vioscale (https://www.vioscale.ai/alternatives/zscaler-internet-access). Generated 2026-09-01T16:53:45.313Z.*