12 Best Browser Isolation Solutions Compared (2026): Features & Pricing

Quick Answer: Zscaler and Cloudflare lead RBI delivered inside SSE platforms; Menlo Security leads isolate-everything efficacy; Garrison (Everfox) owns hardware-grade high assurance for government; Authentic8 Silo dominates managed OSINT/investigations; Kasm is the self-host value play. RBI typically prices per user per month.

The browser executes more untrusted code than any other program on an endpoint every tab is a code-execution event from someone else’s server.

Remote browser isolation (RBI) breaks this attack path by rendering the web in a disposable remote environment and streaming only safe output down, neutralizing sophisticated anti-phishing attack vectors, drive-bys, and browser zero-day vulnerabilities regardless of signature.

Architectures differ enormously pixel streaming, DOM reconstruction, hardware-enforced and so do price points.

This playbook compares twelve options with full per-tool detail so you can match isolation strength, user experience, and budget. Editorial assessment; pricing by model only.

Table of Contents

1. Stage 1 — Architectures Decide Everything

2. Stage 2 — The 12 Solutions in Depth

3. Stage 3 — Full Comparison

4. Stage 4 — How to Buy

5. Stage 5 — FAQ

Stage 1 — Architectures Decide Everything

Pixel/stream-based (Garrison, WEBGAP, Authentic8) sends only rendered pixels maximum assurance, most bandwidth.

DOM/vector reconstruction (Cloudflare NVR, Menlo, Ericom) rebuilds a safe page locally near-native UX with strong (not absolute) separation.

Platform-embedded RBI Isolates risky categories as a policy dial inside broader Secure Web Gateway (SWG) solutions.

Self-host containers (Kasm) trade SaaS convenience for control and cost. Match assurance level to user risk most estates isolate selectively; high-threat roles get full-time isolation.

Stage 2 — The 12 Solutions in Depth

1. Zscaler (Browser Isolation)

Description.Zscaler embeds RBI directly within the Zscaler Zero Trust Exchange: policy decides which categories, users, or risk levels render isolated, with Secure Web Gateway (SWG), Cloud Access Security Broker (CASB), and Data Loss Prevention (DLP) wrapped around it isolation as one dial in a full Zero Trust SSE framework.

Key features: Policy-driven isolation; SSE integration (SWG/CASB/DLP/ZTNA); data controls in isolated sessions; global cloud scale.

Pricing model: Per user (SSE bundles/add-on).

Best for: Zscaler estates isolating risky traffic by policy.

Pros: Seamless SSE policy; scale.

Cons: Platform commitment; add-on economics.

2. Palo Alto Networks (RBI / Prisma Access)

Description. Palo Alto delivers RBI within the Prisma Access SASE architecture, applying isolation to risky web and SaaS destinations alongside its enterprise browser (Talon) two complementary approaches inside one vendor’s portfolio.

Key features: RBI in Prisma Access; policy by risk/category; pairing with Talon enterprise browser; SASE-wide data controls.

Pricing model: Credits/per user, quote.

Best for: Prisma SASE customers adding isolation policy.

Pros: SASE integration; browser+RBI portfolio.

Cons: Ecosystem-first value; credit modeling.

3. Menlo Security

Description: The isolate-everything pioneer: all web content executes in Menlo’s cloud with its Adaptive Clientless Rendering, delivering proven protection validated by Menlo Security HEAT evasion defense frameworks alongside full phishing defenses and document sanitization.

Key features: Full-traffic isolation; clientless rendering; phishing/HEAT protection; document sanitization; DLP controls.

Pricing model: Per user/quote.

Best for: Organizations isolating all browsing, not just risky slices.

Pros: Deep efficacy heritage; clientless UX.

Cons: Premium; some complex-app edge cases.

4. Garrison (Everfox)

Description: Hardware-enforced isolation Garrison’s SAVI appliances convert web content to pixels on dedicated silicon, delivering hardware-level separation aligned with high-assurance privileged access management controls trusted by defense and government sectors; now part of Everfox.

Key features: Hardware (silicon-level) isolation; pixel-only delivery; on-prem/cloud appliances; government accreditation heritage.

Pricing model: Appliance/subscription, quote.

Best for: Government/defense and highest-assurance estates.

Pros: Strongest assurance model available.

Cons: Cost/infrastructure; UX trade-offs vs DOM approaches.

5. Forcepoint (RBI)

Description: Forcepoint offers RBI integrated with its web security gateway and enterprise Data Loss Prevention (DLP) software, applying isolation to risky categories with its established data-protection DNA.

Key features: RBI tied to SWG policy; DLP-integrated data controls; risk-adaptive integration; zero-trust CDR options.

Pricing model: Per user/quote.

Best for: Forcepoint SWG/DLP customers adding isolation.

Pros: Data-security integration.

Cons: Commercial/federal split (Everfox) to navigate; ecosystem-first.

6. Parallels Browser Isolation

Description. A cloud-native remote browser isolation (RBI) solution that securely runs web applications in an isolated environment while allowing users to access them through their existing browser.

It separates untrusted web content and browser-borne threats from the endpoint and supports both SaaS and private-access deployments.

Key features: Remote browser isolation; isolated browser sessions; granular access policies; secure SaaS and web-app access; identity-provider integration; download/upload and clipboard controls; cloud or private-cloud/on-premises deployment options.

Pricing model: Subscription-based / named-user licensing; pricing is customized based on requirements.

Best for: Enterprises that need secure access to public SaaS, internal web applications, and untrusted websites without requiring users to install a dedicated browser or deploy infrastructure for the cloud SaaS version.

Pros: Cloud-native; agentless user experience; granular policy controls; identity integration; supports private/on-premises isolation through PBI Private Access.

Cons: Enterprise pricing is quote-based, and advanced private-access deployments require additional infrastructure and management compared with the fully hosted SaaS option.

7. Cloudflare (Browser Isolation)

Description. Cloudflare runs isolation on its global edge using Network Vector Rendering (NVR) draw commands, not pixels delivering near-native UX at low latency, bundled into Cloudflare Zero Trust and integrated browser isolation plans.

Key features: NVR draw-command streaming; global edge latency; Zero Trust bundle (ZTNA/SWG/DLP/CASB); clipboard/download controls.

Pricing model: Per user (bundled in Zero Trust plans; free tier for small teams).

Best for: Teams wanting fast UX and bundle economics.

Pros: UX + price; edge scale; generous entry tiers.

Cons: Deepest value inside Cloudflare One; enterprise DLP maturing.

8. Authentic8 (Silo)

Description. Silo is managed, cloud-native isolation purpose-built for high-risk research supporting teams conducting cyber threat intelligence and OSINT investigations with managed attribution (egress control, fingerprint rotation) plus complete auditability.

Key features: Full cloud browser isolation; managed attribution for investigations; audited sessions; policy controls; secure storage.

Pricing model: Per user/seat, quote.

Best for: OSINT/investigation teams and regulated research browsing.

Pros: Investigation tooling unmatched; strong audit.

Cons: Specialist economics for general browsing; per-seat cost.

9. Broadcom (Symantec Web Isolation)

Description. Symantec Web Isolation (Fireglass lineage) integrates directly with ProxySG and Cloud SWG to isolate risky and uncategorized sites, providing enterprise protection across endpoints alongside updates patching critical enterprise software and agent flaws.

Key features: SWG-integrated isolation; risky/uncategorized-site policy; read-only modes; email link isolation.

Pricing model: Quote (suite).

Best for: Symantec SWG estates adding isolation policy.

Pros: Mature; proxy integration.

Cons: Broadcom packaging/roadmap diligence; suite-bound.

10. Skyhigh Security (RBI)

Description. Skyhigh (formerly McAfee Enterprise SSE) embeds RBI directly inside its Security Service Edge, integrating isolation with Cloud Access Security Broker (CASB) and SSE capabilities to protect data across cloud and web channels.

Key features: RBI inside SSE; unified policy with SWG/CASB/DLP; risk-based triggering; cloud scale.

Pricing model: Per user (SSE bundles).

Best for: Skyhigh SSE customers wanting bundled isolation.

Pros: Bundle economics; unified policy.

Cons: Ecosystem-first; brand transition awareness.

11. Ericom (Cradlepoint)

Description. Ericom’s RBI (now part of Cradlepoint/Ericsson) delivers clientless isolation with virtual meeting isolation and native alignment with Zero Trust Network Access (ZTNA) frameworks.

Key features: Clientless RBI; virtual meeting isolation; CDR file sanitization; ZTNA integration.

Pricing model: Per user/quote.

Best for: Cradlepoint/Ericsson-aligned estates and 5G-edge use cases.

Pros: Solid engine; meeting isolation niche.

Cons: Brand/packaging transition; standalone visibility lower.

12. MONITORAPP AIRBI

Description. Kasm delivers container-streamed browsers and desktops with an open-source core you can self-host providing secure, isolated execution similar to ephemeral container and sandbox environments on your private infrastructure at a dramatic cost advantage.

Key features: Remote browser isolation; image/video-stream delivery; on-premise Isolation Server; Content Disarm & Reconstruction (CDR); Zero Trust-based web security.

Pricing model: Quote-based / contact vendor.

Best for: Enterprises, financial institutions, healthcare organizations, and public-sector environments requiring controlled browser isolation.

Pros: Strong endpoint isolation; on-premise deployment; pixel/image or video-stream delivery; integrated CDR.

Cons: More infrastructure-oriented than lightweight SaaS RBI; pricing is not publicly published.

Stage 3 — Full Comparison

Solution	Architecture	Standalone or platform	Self-host	Pricing
Zscaler	DOM/stream in SSE	Platform	No	Per user (bundle)
Palo Alto	RBI in SASE	Platform	No	Credits
Menlo	Clientless rendering	Standalone-ish	No	Per user
Garrison (Everfox)	Hardware pixel	Standalone	Appliance	Quote
Forcepoint	RBI + SWG/DLP	Platform	No	Quote
Parallels Browser Isolation	Remote browser isolation / isolated browser sessions	Standalone	Yes (private deployment option)	Subscription / quote
Cloudflare	NVR draw commands	Platform (bundle)	No	Per user (+free tier)
Authentic8	Cloud browser	Standalone	No	Per seat
Symantec (Broadcom)	Proxy-integrated	Platform	No	Quote
Skyhigh	RBI in SSE	Platform	No	Per user (bundle)
Ericom	Clientless	Platform-adjacent	No	Per user
MONITORAPP AIRBI	Image/video-stream RBI	Standalone	Yes (on-premises)	Quote

Stage 4 — How to Buy

Buy by risk tier, not wall-to-wall. Most estates isolate selectively uncategorized/risky categories, email links, high-risk roles which SSE-embedded RBI (Zscaler, Cloudflare, Skyhigh, Forcepoint, Palo Alto) prices efficiently per user.

Full-time isolation for high-exposure orgs points to Menlo; national-security assurance to Garrison; investigations to Authentic8; budget/control to Kasm or WEBGAP.

Test the UX honestly: video calls, canvas apps, file uploads DOM approaches feel native, pixel approaches guarantee more.

Key takeaways: architecture = assurance; per-user-per-month is the standard unit (free/OSS floors exist via Cloudflare’s entry tier and Kasm); and isolation pays for itself fastest on email-link and uncategorized-site policy where SWG allow/block guesses used to lose.

Stage 5 — FAQ

What is the best browser isolation solution in 2026?

Zscaler and Cloudflare lead platform-embedded RBI; Menlo leads isolate-everything efficacy; Garrison (Everfox) leads hardware-grade assurance; Authentic8 Silo leads investigations; Kasm leads self-host value. Match architecture to risk tier.

How much does browser isolation cost?

Typically per user per month bundled into SSE plans (Zscaler, Cloudflare, Skyhigh), standalone published tiers (WEBGAP), premium quotes for full-time or hardware isolation (Menlo, Garrison), and free/OSS floors (Cloudflare entry tier, Kasm community).

Pixel streaming vs DOM reconstruction — which is safer?

Pixel/hardware approaches (Garrison, WEBGAP) transfer only rendered output maximum assurance, more bandwidth/UX cost. DOM/NVR approaches (Cloudflare, Menlo, Ericom) feel native with strong-but-softer separation. High-threat roles justify pixel; general fleets usually accept DOM.

Does RBI stop phishing?

It defangs it: pages render remotely, credential fields can be forced read-only on uncategorized sites, and downloads are sanitized (CDR). Menlo, Zscaler, Cloudflare, and Ericom all offer these phishing-specific modes.

Can I self-host browser isolation?

Yes — Kasm Workspaces offers an open-source core with containerized browser streaming on your infrastructure; Garrison offers on-prem appliances at the high-assurance end.

Who actually needs full-time isolation?

High-exposure roles: executives, finance/payments, OSINT and fraud teams (Authentic8), admins with privileged sessions, and government/defense users (Garrison). Most others get selective isolation via SSE policy.

Conclusion

RBI has matured from novelty to policy dial. Zscaler, Cloudflare, Skyhigh, Forcepoint, and Palo Alto make isolation a checkbox in SSE; Menlo isolates everything with efficacy pedigree; Garrison (Everfox) defines hardware-grade assurance; Authentic8 owns investigative browsing; Ericom and Symantec serve their ecosystems; WEBGAP and Kasm prove isolation doesn’t need enterprise budgets.

Pick the architecture your risk tier demands, verify UX on your real apps, and start where isolation wins outright: email links and uncategorized sites.

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