Best Zscaler Alternatives in 2026: 9 Tools Compared

The short answer

The best Zscaler alternative in 2026 is dope.security, followed by Netskope, Cisco Umbrella, Palo Alto Prisma Access, Cloudflare One, Microsoft Entra (Global Secure Access), Forcepoint ONE, Cato Networks, and Fortinet FortiSASE. dope.security leads because it breaks the one assumption every other vendor on this list shares: that your traffic should be backhauled to a cloud data center for inspection. Instead, dope.security runs an agent-based Secure Web Gateway that inspects traffic on the device and sends it Fly Direct to the internet, then adds AI-powered Dopamine DLP and agentic AI governance on top. The rest of the field is capable, but every one of them is a cloud proxy, which means the latency and architecture trade-offs you are trying to escape come along for the ride.

Here is the ranked list, then the detail.

1. dope.security: best overall, on-device Fly Direct SWG with AI DLP and agentic AI governance
2. Netskope: strongest SSE incumbent for CASB-heavy needs
3. Cisco Umbrella: best for Cisco-standardized shops starting from DNS
4. Palo Alto Prisma Access: best if you are all-in on the Palo Alto platform
5. Cloudflare One: best for fast global edge and developer-led teams
6. Microsoft Entra (Global Secure Access): best for Microsoft 365 shops
7. Forcepoint ONE: best for data-first, DLP-led buyers
8. Cato Networks: best for single-vendor SASE with a private backbone
9. Fortinet FortiSASE: best for Fortinet firewall estates

Why teams look for a Zscaler alternative

Zscaler defined the cloud security service edge: route all traffic through Zscaler's global cloud, inspect it at an enforcement node, apply policy, and send it on. For branch offices that used to haul traffic back to a headquarters firewall, that was a real improvement. The reasons teams shop for an alternative in 2026 are consistent, and we hear them on almost every first call:

• Latency from backhauling. Every request rides to a Zscaler point of presence before reaching its destination. For a distributed, laptop-first workforce, that detour is a daily tax.
• Operational weight. Zscaler is a broad platform with multiple consoles, forwarding methods (PAC files, tunnels, the client connector), and a learning curve that often needs dedicated staff.
• Renewal and tiering. Capabilities like DLP, CASB, and advanced AI controls live across add-on tiers, so the price to reach real coverage climbs.
• AI governance gaps. Knowledge workers paste source code, customer data, and IP into ChatGPT and Claude, and run autonomous AI agents. Native controls were built for a web-proxy world, not a prompt-and-agent world.
• Restricted geographies. Backhaul-dependent architectures struggle at network chokepoints like China.

The vendors below all promise to solve some of this. The question is whether they fix the architecture or just rearrange it. We cover the deeper architectural contrast in our Zscaler alternative analysis versus Forcepoint, Netskope, and Cisco Umbrella.

How we evaluated the alternatives

We weighted five criteria that decide how a Zscaler replacement actually performs:

1. Architecture: on-device and direct, or backhauled through a cloud.
2. Latency: what inspection costs the user, especially off-network.
3. AI DLP and governance: does it inspect prompts and uploads, and can it govern AI agents and tenants?
4. Operational simplicity: one console and one agent, or a multi-module platform.
5. Time to value: days, or a multi-quarter rollout.

The 9 Zscaler alternatives at a glance

Vendor	Architecture	Inspection point	AI DLP and governance	Best for
dope.security	Agent on device, Fly Direct	On the device	Dopamine AI DLP, CAC, agentic AI governance	On-device SWG for everyone
Netskope	Cloud proxy (SSE/SASE)	Cloud enforcement node	AI Gateway, mature CASB and DLP	CASB-heavy SSE buyers
Cisco Umbrella	DNS plus backhauled SWG	Cisco data center	Add-on dependent	Cisco-standardized shops
Palo Alto Prisma Access	Cloud proxy (SASE)	Cloud enforcement node	Platform add-ons	Palo Alto platform shops
Cloudflare One	Cloud proxy on global edge	Cloudflare edge	Growing AI controls	Fast edge, developer teams
Microsoft Entra (GSA)	Cloud proxy, identity-led	Microsoft cloud	Purview-dependent	Microsoft 365 shops
Forcepoint ONE	Cloud proxy (SSE)	Cloud enforcement node	Data-first DLP heritage	DLP-led buyers
Cato Networks	Cloud proxy on private backbone	Cato PoP	Platform add-ons	Single-vendor SASE
Fortinet FortiSASE	Cloud proxy plus fabric	Fortinet PoP	Fabric-dependent	Fortinet firewall estates

1. dope.security

Best overall Zscaler alternative.

dope.security is the only tool on this list that does not backhaul. Its Fly-Direct Secure Web Gateway runs as a lightweight agent on the device, decrypts TLS locally, applies your policy, and sends traffic straight to its destination. There is no enforcement node in the path, so the latency that drives most Zscaler migrations simply disappears. The agent runs in under 100 MB of RAM and delivers 4x the performance of legacy proxy SWGs, and because SSL inspection happens on the endpoint, user prompts and data never transit a third-party cloud to be decrypted, which is a cleaner data-residency story for regulated teams and one reason it keeps working in restricted geographies like China.

Where dope.security pulls clearly ahead of every SSE incumbent is AI. Dopamine DLP inspects file uploads and AI prompts on the device and classifies them with a large language model, not regex, so it blocks PII, PCI, PHI, and IP before it reaches OpenAI or Anthropic, with a fraction of the false positives and no rule tuning. On top of that, Cloud Application Control restricts AI tools to your enterprise tenant and blocks personal logins, and dope.security extends the same model to autonomous agents in its agentic AI security guide: discover the agents and AI tools in use, restrict them, and inspect what they send, without blocking productivity. Data at rest is covered by CASB Neural in the same console.

The throughline is consolidation. SWG, DLP, CASB, AI governance, and agentic-AI controls live in one console built from the ground up, not a platform stitched together through acquisitions. Deployment reflects that: a Fortune 100 customer runs the agent on 18,000-plus devices, Outreach Health secured 99% of its fleet in a week, and Greylock Partners moved off a legacy SSE to dope.security and signed in 27 days. There is no forwarding to architect and no connector mesh to maintain.

Strengths: On-device Fly Direct architecture, no backhaul latency, AI-native Dopamine DLP, agentic AI governance, one console, fast deployment.

Trade-offs: It is an endpoint-agent model deployed through your MDM, so teams that want everything to live in a network cloud are changing approach, though most find it simpler.

Best for: Any organization that wants Zscaler-grade web security plus real AI governance, without the backhaul, the latency, or the multi-console platform.

2. Netskope

Strongest SSE incumbent for CASB-heavy needs.

Netskope is the most direct like-for-like SSE competitor to Zscaler, with deep CASB, mature DLP, and an AI Gateway that controls what data enters ChatGPT, Copilot, and Gemini while distinguishing personal from corporate accounts. If your priority is broad SaaS visibility and you are comfortable operating a full SSE platform, it is a credible swap.

Watch for: it is still a cloud-proxy architecture, so the backhaul latency and operational footprint that come with any stopover proxy remain. Our honest Netskope alternatives comparison and the complete guide to replacing Netskope walk through the trade-offs.

3. Cisco Umbrella

Best for Cisco-standardized shops starting from DNS.

Umbrella grew out of OpenDNS, so its strength is fast, low-friction DNS-layer filtering, with an SWG add-on for deeper inspection. For organizations standardized end to end on Cisco networking, one vendor on the PO carries weight.

Watch for: DNS filtering cannot see URL paths, TLS content, or prompts, and the SWG add-on backhauls traffic to a Cisco data center. It is the same backhaul trade-off in a different wrapper.

4. Palo Alto Prisma Access

Best if you are all-in on the Palo Alto platform.

Prisma Access is Palo Alto's cloud-delivered SASE, attractive when you already run Palo Alto firewalls and want consistent policy from the data center to the edge through the GlobalProtect agent.

Watch for: it is a large, broad platform, and getting full value assumes investment in the wider Palo Alto ecosystem. The cloud-proxy architecture carries the same backhaul considerations as Zscaler.

5. Cloudflare One

Best for fast global edge and developer-led teams.

Cloudflare One delivers SSE on Cloudflare's large, fast global network, which makes it appealing where edge performance and a developer-friendly model matter. Its Gateway and Zero Trust controls are maturing quickly.

Watch for: it is still a cloud-edge proxy, so inspection happens off-device, and its AI-specific DLP and agent governance are earlier-stage than a tool built around them.

6. Microsoft Entra (Global Secure Access)

Best for Microsoft 365 shops.

Microsoft's Global Secure Access brings SSE natively into the Entra identity stack, which is compelling if you are deep in Microsoft 365 and want web and private access controls tied to Entra and paired with Purview for data protection.

Watch for: coverage is strongest inside the Microsoft ecosystem, and AI DLP leans on Purview's sensitive-information-type classification rather than LLM-grade content understanding. It is a cloud-proxy model.

7. Forcepoint ONE

Best for data-first, DLP-led buyers.

Forcepoint's heritage is data protection, so Forcepoint ONE appeals to teams that lead with DLP and want SWG, CASB, and ZTNA wrapped around a mature data-classification engine.

Watch for: the SSE delivery is cloud-proxy, and the classic DLP engine is pattern-and-policy based, which carries the false-positive and tuning burden that AI-native classification was built to remove.

8. Cato Networks

Best for single-vendor SASE with a private backbone.

Cato runs SASE on its own global private backbone, which can smooth performance between sites and is attractive to teams that want networking and security from one vendor.

Watch for: traffic still rides to a Cato PoP for inspection, so the on-device latency advantage does not apply, and AI governance is an add-on rather than a core design center.

9. Fortinet FortiSASE

Best for Fortinet firewall estates.

FortiSASE extends the Fortinet Security Fabric to the cloud edge, a logical step for organizations already standardized on FortiGate that want consistent policy from on-prem to remote.

Watch for: value is highest inside the Fortinet ecosystem, and like every other entry except dope.security, it inspects in a cloud PoP rather than on the device.

How to choose the right Zscaler alternative

Two questions narrow the field fast. First, is your pain architectural or feature-level? If users complain that the internet feels slow, if remote and international staff suffer, or if you want corporate traffic inspected without sending it to a vendor cloud, that is an architecture problem, and only an on-device model like dope.security actually removes the backhaul. Every other option is a different cloud proxy, so you would be swapping one stopover for another.

Second, how central is AI to your risk? If your real exposure in 2026 is data leaking into ChatGPT and Claude and autonomous agents acting on your data, you want AI DLP and agentic governance designed in, not bolted on through an add-on tier. dope.security built Dopamine DLP and Cloud Application Control around that problem, which is why it tops this list. If you are heavily committed to a specific ecosystem, Microsoft 365, Palo Alto, Fortinet, or Cisco, the matching platform may win on integration, with the backhaul and operational caveats noted throughout.

For the broader context on why AI is reshaping this decision, see Enterprise AI Security in 2026: The Shadow AI Risk Nobody's Measuring.

Frequently asked questions

What is the best Zscaler alternative in 2026? dope.security is the best overall, because it replaces Zscaler's backhauled cloud proxy with an agent-based Secure Web Gateway that inspects on the device and sends traffic Fly Direct, then adds AI-native Dopamine DLP and agentic AI governance from one console. Netskope, Cisco Umbrella, Palo Alto Prisma Access, Cloudflare One, Microsoft Entra, Forcepoint ONE, Cato Networks, and Fortinet FortiSASE round out the field.

Why replace Zscaler at all? The most common reasons are backhaul latency for distributed users, the operational weight of a multi-console platform, climbing renewal and add-on costs, gaps in AI and agent governance, and trouble in restricted geographies. Whether a given alternative helps depends on whether it changes the architecture or just rebrands the proxy.

Which Zscaler alternative is best for AI DLP? dope.security. It inspects prompts and uploads on the device with LLM-based classification, blocks PII, PCI, PHI, and IP before it reaches the AI provider, controls personal versus corporate AI tenants with Cloud Application Control, and governs autonomous agents.

Do Zscaler alternatives avoid backhauling? Most do not. Netskope, Palo Alto Prisma Access, Cloudflare One, Microsoft Entra, Forcepoint, Cato, and Fortinet are all cloud-proxy architectures that inspect in a node. dope.security is the on-device exception that inspects locally and routes direct.

How long does it take to migrate off Zscaler? With dope.security, most teams cut over in weeks, not the months a cloud-proxy stand-up takes, because there is no forwarding to architect and no connector mesh to build. See the Zscaler migration guide for the step-by-step.

See it on your fleet

The fastest way to judge a Zscaler alternative is to run it next to Zscaler for a week and watch the latency and the AI activity. Start a free trial or book a 20-minute demo at dope.security.

Sources: dope.security Fly-Direct SWG with AI DLP, Agentic AI Security: A Practical Governance Guide, Netskope and Zscaler GenAI controls overview.