AppBreakup

Zscaler alternatives: 4 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave Zscaler: no public pricing or self-serve plan, and rollout and policy design usually need a dedicated project. We ranked 4 alternatives by how directly each one replaces Zscaler, then by reviews, real visits and how recently each app's facts were checked against its own website. Firezone currently ranks first.

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The best Zscaler alternative for…

The highest-ranked app in this list for each need.

Firezone logo

Best Zscaler alternative for most people

Firezone

Open-source WireGuard-based zero-trust access with per-resource policies and SSO.

Twingate logo

Best Zscaler alternative for a free plan you can upgrade

Twingate

Zero-trust remote access that's far quicker to deploy, with self-serve plans for smaller companies.

Tailscale logo

Best Zscaler alternative for open source

Tailscale

WireGuard mesh with identity-based access rules and a free tier, set up in minutes.

NordLayer logo

Best Zscaler alternative for Mac

NordLayer

Business VPN and zero-trust access with simple per-user pricing for SMBs.

Firezone logo

Best Zscaler alternative for Windows

Firezone

Open-source WireGuard-based zero-trust access with per-resource policies and SSO.

Firezone logo

Best Zscaler alternative for Linux

Firezone

Open-source WireGuard-based zero-trust access with per-resource policies and SSO.

Firezone logo

Best Zscaler alternative for iPhone and Android

Firezone

Open-source WireGuard-based zero-trust access with per-resource policies and SSO.

Zscaler alternatives: common questions

What is the best alternative to Zscaler?

Firezone ranks first right now. Open-source WireGuard-based zero-trust access with per-resource policies and SSO. Twingate and NordLayer follow it in our ranking.

Is there a free alternative to Zscaler?

Yes. Firezone (free plan + paid), Twingate (free plan + paid) and Tailscale (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Zscaler?

Yes: Firezone and Tailscale.

Which Zscaler alternatives work on Linux?

Firezone, Twingate, NordLayer and Tailscale run on Linux.

Why do people switch from Zscaler?

The complaints we hear most: no public pricing or self-serve plan; rollout and policy design usually need a dedicated project; too heavy for small teams that just need remote access.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Zscaler, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.