FileZilla Pro Enterprise Server vs CrushFTP (2026): Which to Choose

FileZilla Pro Enterprise Server and CrushFTP are both paid FTP/FTPS/SFTP servers built for organizations that need more than the free FileZilla Server offers — but they take almost opposite approaches to platform support, licensing, pricing, and how they prove their security to a buyer.

This article compares the two products across protocols, platform support, administration, security & compliance, and pricing to help you decide which fits your environment.

Feature	FZPES	CrushFTP
FTP / FTPS / SFTP	✅	✅
HTTPS / WebDAV (web access)	⏳ Roadmap Q3 2026	✅
Platform support	Windows only	Windows, macOS, Linux, Solaris, BSD, Unix
Active Directory	✅ Included	✅ Via plugin
Generic LDAP (non-AD)	❌ Not yet supported	✅ Via plugin
Two-factor authentication	✅	✅ Google/Microsoft Authenticator (TOTP)
Independent security certification	✅ ISO/IEC 27001:2022 certified (Business Follows srl, the company behind FileZilla Pro)	Not publicly listed
Licensing model	Annual subscription, per server	One-time purchase (Normal tier) or one-time + annual maintenance (Enterprise tier)

FileZilla Pro Enterprise Server: a single, “unlocked” Windows product with Active Directory integration and unlimited users included as standard, backed by an independently certified information security management system, and sold as a predictable annual subscription.

CrushFTP: a cross-platform Java-based server with a much broader protocol and feature list out of the box, sold mostly as a one-time license rather than a subscription — pricing scales with support level and connection limits, not with feature access.

Protocol and Feature Support

Both products cover the core FTP/FTPS/SFTP set. CrushFTP goes considerably further: native HTTPS and WebDAV web access (no separate client needed), SCP, an SSH tunnel mode, a TFTP proxy for legacy hardware, and even limited AS2 support for B2B file exchange. FZPES’s own HTTP/HTTPS web-access is on its roadmap for Q3 2026 but isn’t available today. On raw protocol and feature breadth, CrushFTP is ahead.

Protocol / Feature	FileZilla Pro Enterprise Server	CrushFTP
Platform	Windows	Windows, macOS, Linux, Solaris, BSD, Unix
FTP	✅	✅
FTPS (explicit & implicit)	✅	✅
SFTP	✅	✅
SCP	❌	✅
HTTPS / WebDAV (browser access)	⏳ Roadmap Q3 2026	✅
SSH tunneling	❌	✅
Active Directory	✅ Included	✅ Via CrushLDAPGroup plugin
Generic LDAP / OpenLDAP	❌ Not yet supported	✅ Via CrushLDAPGroup plugin
SAML SSO	❌	✅ Enterprise tier only
RADIUS authentication	❌	✅ Enterprise tier only
Two-factor authentication	✅	✅ Google/Microsoft Authenticator (TOTP), WebInterface logins by default; extendable to FTP/FTPS/SFTP/HTTP/HTTPS/WebDAV via a config flag
High availability mode	❌	✅ Enterprise tier only
Multi-server sync / shared user DB	❌	✅ (SQL Users, CrushSync — Enterprise tier for CrushSync)

The gap is widest around administration flexibility and multi-server operation: CrushFTP’s SQL Users feature lets multiple CrushFTP servers share one user database, and its Enterprise tier adds real-time file synchronization (CrushSync) and high-availability mode across servers. FZPES has no equivalent — each install is managed and licensed independently, with no centralized way to manage configuration or logs across multiple servers.

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Administration and Authentication

FileZilla Pro Enterprise Server is administered through a dedicated Windows desktop application, covering user management, permissions, virtual filesystem configuration, and transfer logging. CrushFTP is administered entirely through a web browser — the same dashboard works from any device that can reach the server, with real-time graphs, a built-in log viewer, and delegated/limited-admin roles so you can grant partial admin access without handing over full control.

On authentication, FZPES includes Active Directory integration and two-factor authentication as standard at no extra cost, but does not support generic LDAP servers (OpenLDAP, etc.) — only Active Directory. CrushFTP also supports two-factor authentication (TOTP via Google or Microsoft Authenticator, confirmed against CrushFTP’s own documentation) — by default for WebInterface logins, with an optional flag to extend the OTP requirement to FTP/FTPS/SFTP/HTTP/HTTPS/WebDAV as well. CrushFTP’s LDAP plugin supports both Active Directory and generic LDAP servers, and its Enterprise tier adds SAML SSO and RADIUS authentication on top. On two-factor authentication the two products are at parity; for directory support beyond plain Active Directory (OpenLDAP, SAML-based SSO), CrushFTP currently offers more.

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Security, Compliance, and Track Record

This is where the two vendors diverge most, and it’s worth being specific rather than taking either company’s word for it.

In September 2026, Business Follows srl — the company behind FileZilla Pro — achieved ISO/IEC 27001:2022 certification for its Information Security Management System (ISMS). The certification was issued after an independent audit by Scandinavian Certification AS, an accredited certification body and member of the IAF Multilateral Recognition Arrangement, and is valid through August 28, 2029 (certificate ITA-10370-ISMS), subject to annual surveillance audits. Its scope explicitly covers the design, development, support, and sale of FileZilla Pro Client, FileZilla Server, and FileZilla Pro Enterprise Server — meaning FZPES itself, not just the company in the abstract, falls under an independently audited framework for risk assessment, access control, secure development practices, incident response, and staff security training. FileZilla Pro’s own site also states that FZPES undergoes annual third-party penetration testing — a claim from the vendor itself, not independently verified by a third party the way the ISO certification is, but consistent with the certification’s emphasis on ongoing audits. Read the full announcement on the FileZilla Pro ISO/IEC 27001:2022 certification page.

CrushFTP’s public marketing materials do not list an equivalent independent security certification (no published ISO 27001, SOC 2, or comparable audit as of this writing) — which matters for any organization that needs to cite a vendor’s certification during a security review, a customer’s vendor-risk questionnaire, or a regulated-industry procurement process.

CrushFTP’s own vulnerability history is also worth knowing before you deploy it at the edge of your network. Since 2024, CrushFTP has disclosed three critical-or-high-severity vulnerabilities, each reported to have been actively exploited in the wild around the time of disclosure:

• CVE-2024-4040 (CVSS 7.7) — a virtual file system escape in CrushFTP’s WebInterface that let unauthenticated attackers break out of the sandboxed file system and reach system files; disclosed and patched in April 2024, with roughly 4,900 exposed instances still unpatched days after the fix shipped.
• CVE-2025-31161 (CVSS 9.8, Critical) — an authentication bypass letting an attacker impersonate any user, including admins, without valid credentials; disclosed March 2025, with active exploitation reported within about two weeks.
• CVE-2025-54309 (Critical) — a zero-day allowing data theft and potential full server compromise; researchers found it had already been under active exploitation before CrushFTP shipped a fix in July 2025.

To be fair to CrushFTP: every file-transfer vendor, FileZilla Pro included, has had to patch vulnerabilities, and CrushFTP did ship fixes for each of these. The pattern worth flagging isn’t that CrushFTP had vulnerabilities — it’s the frequency (three critical/high-severity, actively-exploited issues in roughly 15 months) and that, unlike FZPES, there’s no independently audited ISMS certification a buyer can point to as an offsetting signal of process maturity.

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Pricing and Licensing

This is the section where the honest picture is mixed, and worth being direct about: on a single-server basis, CrushFTP’s entry tier ($100 once) is cheaper than FZPES in year one, and — because it’s a perpetual license, not a subscription — dramatically cheaper over 3+ years if you don’t need major-version upgrades or support. FZPES’s advantage is predictability: one flat annual fee, everything included (and, as of September 2026, backed by an ISO 27001-certified ISMS), no separate “which tier unlocks which feature” decision to make. CrushFTP’s advantage is that you’re not paying every year for a server that hasn’t changed, and its site-license option ($2,000 once for unlimited installs) undercuts FZPES’s per-server annual model once you’re running more than a couple of servers long-term.

Where FZPES’s pricing looks better is total cost of ownership if the organization values support, patch currency, and audited security process as a given, not an add-on: FZPES’s subscription always includes updates and support, while CrushFTP’s Normal tier is email-support-only and doesn’t include free major-version upgrades — those are separate paid upgrade licenses (typically $20-$80 per install) unless you’re on a maintenance-bearing Enterprise license.

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Support and Vendor

FileZilla Pro Enterprise Server is maintained as part of the FileZilla Pro product family, with regular updates and support included in the subscription, and its development is now covered by the company’s ISO/IEC 27001:2022-certified ISMS (see the Security & Compliance section above).

CrushFTP has been developed since 1998. Support depth depends entirely on license tier: Normal-tier customers get email support only; Enterprise-tier customers get installation assistance, screen-sharing support, and 24×7 phone support for server-down (Sev 1) issues, with a typical case resolution time under an hour. For organizations that need guaranteed rapid response, CrushFTP’s Enterprise support is more structured than what’s built into FZPES’s standard subscription — but it costs extra and isn’t included by default the way FZPES’s support is.

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Which Should You Choose?

Choose FileZilla Pro Enterprise Server if:

• You’re Windows-only and want one predictable annual price with everything included — no tier decisions
• Active Directory is your authentication source and you don’t need generic LDAP or SSO
• You need to point a security review, vendor questionnaire, or compliance process to an independently certified ISMS (ISO/IEC 27001:2022) rather than a vendor’s own claims
• You’d rather budget a flat yearly cost than track perpetual-license maintenance and upgrade fees

Choose CrushFTP if:

• You need cross-platform support (macOS, Linux, or Unix-family servers, not just Windows)
• You want browser-based file access (HTTPS/WebDAV) without waiting for FZPES’s Q3 2026 roadmap item
• You’re running multiple servers and want a shared user database or real-time sync between them
• You’d prefer a one-time purchase over a recurring subscription, especially for a single server you don’t plan to upgrade every year, and you’re comfortable managing your own patch cadence