OSI-licensed only · self-hostable
IT Glue is a proprietary documentation platform for IT teams and MSPs: client docs, asset records, network info and a password vault in one place. Open-source options generally split those jobs into separate tools, and ITFlow is the one that bundles documentation with PSA features.
Every tool below is under an OSI-approved licence (AGPL-3.0, Apache-2.0, GPL-3.0 or MIT), checked against its repository. Outline, a popular wiki with public source, is listed separately because it uses the Business Source License.
Licences checked against each repository on November 7, 2026.
| Tool | Best for | Licence | Runs as |
|---|---|---|---|
| ITFlow | MSP documentation with ticketing and billing | AGPL-3.0 | Server |
| NetBox | Network and infrastructure source of truth | Apache-2.0 | Docker |
| Snipe-IT | IT asset and licence management | AGPL-3.0 | Server |
| Passbolt | Team password manager | AGPL-3.0 | Server |
| Vaultwarden | Lightweight Bitwarden-compatible server | AGPL-3.0 | Docker |
| GLPI | ITSM and asset management | GPL-3.0 | Server |
| BookStack | Structured IT documentation | MIT | Server |
| Docmost | Collaborative team wiki | AGPL-3.0 | Docker |
Best for: MSP documentation with ticketing and billing
The free, open-source PSA for MSPs, combining ticketing, client documentation, contracts and billing with a client portal.
Best for: Network and infrastructure source of truth
A source of truth for network infrastructure, covering racks, devices, cables, IP addresses, VLANs and circuits, with APIs.
Best for: IT asset and licence management
A free, open-source IT asset and licence management system for tracking who has which laptop and handling software licences.
Best for: Team password manager
The Community Edition API of an open-source password manager for teams, with user-owned keys and end-to-end encryption.
Best for: Lightweight Bitwarden-compatible server
An alternative server implementation of the Bitwarden Client API, written in Rust and intended for self-hosting. Not associated with Bitwarden, Inc.
Best for: ITSM and asset management
An open asset and IT management platform with an ITIL service desk, licence tracking, software auditing and configuration management.
Best for: Structured IT documentation
A platform for storing and organising information and documentation. Development has moved to Codeberg.
Best for: Collaborative team wiki
An open-source collaborative wiki with real-time editing, diagrams, permissions and page history. Enterprise code lives under separate ee folders.
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| If you need… | Start with |
|---|---|
| Docs plus ticketing and billing for an MSP | ITFlow |
| Network and rack documentation | NetBox |
| Hardware and licence inventory | Snipe-IT |
| Shared team passwords | Passbolt or Vaultwarden |
| Full service desk and assets | GLPI |
| Written runbooks and procedures | BookStack or Docmost |
Public source code, but under licences the Open Source Initiative doesn't approve. Fine to use; read the terms first.
Source code is public, but the Business Source License 1.1 is not an open-source licence.
Quick answers to common questions
IT Glue is proprietary. ITFlow is the closest single open-source tool for MSP-style documentation, though it is a PSA first.
Passbolt and Vaultwarden are both self-hostable and AGPL-3.0 licensed.
NetBox is built to model devices, racks, IP addresses and VLANs, and exposes APIs.
Not completely. Most teams combine a wiki such as BookStack, an asset tool such as Snipe-IT, and a password manager.
No. Outline uses the Business Source License 1.1, which is not an open-source licence, though its source is public.
List it on TechLogHub and we'll review it for this page.
