ITFlow

ITFlow combines client IT records, support tickets, and billing for small managed service providers. It is a strong fit for teams that can operate their own installation and want those workflows in one open-source system. The trade-off is clear: there is no hosted service today, and Windows installation is unsupported.

Overview

ITFlow brings together client contacts, locations, vendors, computer assets, software licenses, domains, and documents. That breadth makes it more than a knowledge repository: support and billing can sit alongside the records MSPs use to understand each client. The project began in 2018 and moved to stable releases in January 2025.

Operating ITFlow is the user's responsibility. The recommended installation method uses Debian, with manual Debian installation and HestiaCP also documented; Docker is community-supported. A hosted service is planned but not yet available, so teams seeking vendor-managed hosting should choose another product.

Key features

Documentation, tickets, and API

Tickets can be created, prioritized, and tracked alongside client documentation, which suits small MSPs that want support work connected to client context. The version 1 API covers modules including assets, clients, contacts, credentials, documents, invoices, and tickets. Some operations are partial or unavailable, however, so integrations that rely on complete API coverage may need workarounds.

Billing and additional modules

Recurring invoices, quotes, automated reminders, and Stripe client payments give ITFlow a meaningful billing role as well as a documentation one. The site also lists accounting, bulk email, calendars, lead management, a client portal, and a password manager. This range may reduce the need to separate routine MSP functions across tools, though teams should weigh that breadth against the work of self-hosting.

AI and security

Documented integrations with Ollama, OpenAI, and LocalAI support ticket rewording and summaries. The documentation says login passwords are encrypted at rest with AES 128-bit encryption and advises backing up the master key. That backup advice is operationally important for anyone responsible for the installation.

Pricing

ITFlow (self-hosted) costs nothing. The free and open-source plan has no license charge, but hosting and sponsor support are paid services. The plan is therefore most attractive to teams able to provide their own hosting and support arrangements; it does not mean the service is hosted for free.

Single sign-on is supported. Product support is provided through the forum, while sponsors may access private support. Teams that require private support should account for that sponsorship distinction when deciding whether the no-cost license is sufficient.

Platforms

ITFlow supports API, Linux, self-hosted, and web. Debian is the recommended installation route, while Windows installation is explicitly unsupported and receives no support. The community-supported Docker route may suit teams already using containers, but it is not presented as the recommended method.

Who it's for

ITFlow is aimed at small MSPs looking for a free alternative to ITGlue or Hudu and willing to manage their own infrastructure. It is particularly relevant when client documentation, ticket handling, and billing belong in one operational system. It is a poor match for organizations that need hosted service, supported Windows deployment, or API operations that are complete across every module they use.

Pros and cons

• Pros: Free, open-source licensing removes per-seat license cost from the stated plan.
• Pros: Client records, ticketing, recurring billing, and additional modules span several common MSP workflows.
• Pros: Ollama, OpenAI, and LocalAI integrations offer options for ticket rewording and summaries.
• Cons: Self-hosting is required, so teams must take responsibility for deployment and operation.
• Cons: Windows installation is unsupported, narrowing its use for teams that require that platform.
• Cons: Some version 1 API operations are partial or unavailable, which can complicate integrations.
• Cons: Forum support is the standard route; private support is for sponsors.

Alternatives

CompassDocs is worth considering for teams that prioritize self-hosted documentation and want a community plan explicitly covering unlimited users and documents.

Rundeck may suit teams seeking a free community offering for small teams, with registration required.

Danbyte is another free, open-source self-hosted option, with all features included and no seat license or license expiry.

StackStorm is a free, open-source alternative when its project offers a better fit; it has no paid products.

FlowGuideAI may fit readers looking for a web-based option with a free tier capped at 15 pages per month, 2 GB of storage, and one user.

IT Dock is a web-based alternative whose free plan is capped at one technician, three clients, 25 AI questions per month, and five screenshot-to-documentation uses per month.

InfraDocs is a free, open-source self-hosted option for readers comparing Linux and web deployments.

Stepwright is a web and Windows alternative with a free plan capped at five guides.

Browse IT Documentation Software, Network Documentation Software, and IT Knowledge Base Software for more category options.

Verdict

Choose ITFlow if you are a small MSP that wants documentation, tickets, and billing together without a license fee and can handle self-hosting. Its breadth is the central reason to choose it; the operational burden, unsupported Windows installation, and incomplete API coverage are the reasons to look elsewhere.