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ISPConfig

BSD-licensed Linux hosting control panel for single-server and multi-server environments.

What it is

ISPConfig is a free, BSD-licensed control panel for administering Linux web, mail, DNS, database, FTP, shell and cron services. One panel can manage a single server, multiple servers or mirrored configurations, with separate administrator, reseller, client and email-user access levels. The core software has no license fee, but servers, administration, monitoring, backups and incident response remain the operator's responsibility. Optional materials and extensions use separate commercial terms: the current billing module is €59 excluding VAT per master panel and includes 12 months of updates.

ISPConfig pricing

ISPConfig does not publish a plan ladder we could verify. Free.

Prices read from the vendor's own pricing page on 2026-08-24. Vendors change plans without notice — check the source before you budget. Price verification log.

Cheaper alternatives to ISPConfig — same category, ordered by verified starting price.

Key features

  • Multi-server control

    Administers one or more Linux servers from a central browser-based panel.

  • Hosting service management

    Controls Apache or nginx sites, Postfix and Dovecot mail, DNS, FTP, databases, shell users and cron jobs.

  • Role-based portals

    Separates administrator, reseller, customer and email-user workflows.

  • Remote API

    Supports automation through the project's documented remote API and example clients.

Strengths and trade-offs

What works well

  • Open and inspectable: The core panel is distributed under the permissive BSD license.
  • Multi-service administration: Web, mail, DNS, databases, users, quotas and monitoring are managed from one interface.
  • Multi-server support: A single control plane can administer multiple servers and mirrored configurations.
  • Role separation: Administrator, reseller, client and email-user levels support hosting-provider workflows.

Where it falls short

  • Self-hosted responsibility: Installation, OS hardening, patching, capacity, backups and recovery belong to the operator.
  • A panel is not isolation: Secure tenant boundaries still depend on the underlying Linux services and configuration.
  • Commercial extras differ: Billing, manuals and professional installation or update support are not part of the free core license.
  • Migration needs proof: Existing sites, mailboxes, DNS zones and databases require service-specific validation and rollback.

Who it is for

Linux administrators and hosting providers that want an open control panel and can own the entire server lifecycle.

Pick it or skip it

Pick ISPConfig if

  • Self-managed Debian or Ubuntu hosting estates with experienced Linux operators
  • Hosting providers needing reseller and client delegation across several servers
  • Teams prepared to automate backups and test service-by-service restoration

Skip it if

  • You need a fully managed SaaS control plane with infrastructure and recovery included
  • No one owns OS patching, mail reputation, DNS, TLS, monitoring and incident response
  • A proprietary billing add-on or paid support is assumed to be included with the free panel

Our verdict

ISPConfig is a capable free control panel for experienced Linux teams, particularly in multi-server hosting, but its zero license price should never be confused with zero operating cost; harden the underlying services and prove backup, update and migration procedures before production.

Frequently asked questions

How much does ISPConfig cost?
ISPConfig is free to use. We verified this against the vendor's own page; see "What we checked" below for the date.
Does ISPConfig have a free plan?
Yes. ISPConfig is free to use at its base level.
Who is ISPConfig best for?
Linux administrators and hosting providers that want an open control panel and can own the entire server lifecycle.
What are the main drawbacks of ISPConfig?
The trade-offs we noted: Self-hosted responsibility: Installation, OS hardening, patching, capacity, backups and recovery belong to the operator.; A panel is not isolation: Secure tenant boundaries still depend on the underlying Linux services and configuration.; Commercial extras differ: Billing, manuals and professional installation or update support are not part of the free core license..
When should you not use ISPConfig?
Skip ISPConfig if: You need a fully managed SaaS control plane with infrastructure and recovery included; No one owns OS patching, mail reputation, DNS, TLS, monitoring and incident response; A proprietary billing add-on or paid support is assumed to be included with the free panel.

What we checked

  • Public APIOffers a documented API you can build against.Yes
  • Mobile appHas a native app for iOS or Android, not just a mobile website.No
  • Open source / self-hostableSource is open and the tool can be run on your own infrastructure.Yes
  • SSO (SAML)Supports SAML single sign-on on at least one plan.No

“Not checked” means exactly that — we have not verified it, and we do not guess.

Evidence and freshness

Status: Official sources reviewedReviewed: 2026-08-24

  • ISPConfig — Product overview ↗

    Checked 2026-08-24 · Supports: BSD license, multi-server management, Apache and nginx, mail and DNS management, administrator reseller and client access, mirroring and cluster positioning, supported Linux families

  • ISPConfig Documentation — About ↗

    Checked 2026-08-24 · Supports: open-source Linux control panel, BSD license, service inventory, quotas and statistics, firewall and monitoring modules

  • ISPConfig — Download ↗

    Checked 2026-08-24 · Supports: current 3.3 release family, source availability, update command, recommended Debian and Ubuntu, separate add-ons

  • ISPConfig — Billing module ↗

    Checked 2026-08-24 · Supports: €59 excluding VAT price, single-master license scope, 12 months of updates, source-delivery restrictions, invoice and payment features, remote API examples

  • ISPConfig — Support ↗

    Checked 2026-08-24 · Supports: community forum, bug tracker, partner business support, quote-based installation and update help

Limit: Official ISPConfig product, documentation, download, add-on and support pages were reviewed; ToolCompare did not install or upgrade the panel, audit source code, configure servers or tenants, test the remote API, migrate websites/mail/DNS/databases, purchase an add-on, benchmark performance, validate isolation, induce failure or restore data. Supported distributions, versions, add-on prices and partner services can change.

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