OpenDocMan

OpenDocMan is a free, open-source document management system for organizations that want browser-based control over files and review processes. It is best suited to teams able to run and maintain a PHP web server and database. Its unlimited-user Community plan is compelling, but the self-hosted setup and server-side upload requirements make it less suitable for buyers seeking a managed service.

Overview

Written in PHP and released under the GPL, OpenDocMan is designed to help organizations meet ISO 17025 document-management requirements. It stores files on the web server where it runs, so the organization keeps its documents on its own infrastructure rather than relying on a hosted file service. That control comes with operational responsibility: deployment requires a compatible web server, PHP, and MySQL or MariaDB.

The project describes an audience ranging from individuals and small businesses to nonprofits, educational institutions, government agencies, and large enterprises. Its current stable release is version 2.10.0, dated 08/31/2026.

Key features

Document control and review

Users can upload any file type through a browser, attach metadata and custom properties, organize documents by department or category, lock files while editing, and track revision history. Together, these tools support controlled document handling without limiting teams to a particular file format. Locking and revision history are especially useful where edits need to be coordinated and prior versions retained.

Automated review workflows can route documents for approval or rejection, manage file expiration, and send email notifications before and after review. That makes OpenDocMan a stronger fit for organizations with recurring document-control steps than a basic shared folder, though the information available does not establish how configurable those workflows are.

Search and permissions

Users can browse by author, department, or category, or search across metadata, filenames, comments, and those same organizational fields. Search works without external indexing, keeping the system's search function within its own deployment.

Per-file and departmental access controls, three user roles, and URL-parameter obfuscation provide several layers of access management. The granular controls are useful when teams need to restrict documents by person or department; organizations should still assess whether the available roles match their permission model.

Deployment and extensions

The feature page specifies PHP 8.2, MySQL 8+ or MariaDB 10.0+, and an automatic installer and updater. The FAQ also says the system can run on Linux, Unix, Windows, or Mac systems capable of running PHP, MySQL, and a web server, with installations reported on both IIS and Apache. Administrators can set OpenDocMan's maximum upload size, but larger uploads may also require changes to PHP server settings. This gives administrators control over limits, but means upload capacity is not determined by the application setting alone.

Community forum support is available, with paid support for organizations that need professional help. Listed plug-ins include a free HelloWorld example and paid extensions for tasks such as individual file expiration, export, and user import; the plug-in page says these extensions work with OpenDocMan 1.2.6 and later.

Pricing

Community is the clear starting point for teams that can install and maintain the software themselves: there is no user cap, and the plan includes core document controls. Enterprise keeps the unlimited-user allowance and adds automated installation and easy updates, which may suit organizations that want a more supported deployment. Its annual subscription price is custom, and the Enterprise Suite includes one year of professional support with an option to extend. Neither plan is described as hosted.

Platforms

OpenDocMan is listed for Linux, macOS, Windows, web, and self-hosted use. Those operating-system options describe where a compatible server environment may run; the application itself is web-based and depends on PHP, a web server, and MySQL or MariaDB.

Who it's for

Choose OpenDocMan if your organization needs document review, expiration handling, revision history, and detailed file access controls without paying per user—and has the technical capacity to operate its own server. Its stated ISO 17025 focus may also make it relevant to teams working with that standard's document-management requirements.

Look elsewhere if you need a managed cloud service, or if server configuration and maintenance are not acceptable parts of the purchase. Organizations that routinely handle large files should account for the possibility of adjusting PHP upload settings as well as the application's own file-size limit.

Pros and cons

Pros

• Unlimited users on the free plan: Community does not impose a seat cap, making it practical to extend access across departments without per-user charges.
• Document-control tools in one system: File locking, revision history, metadata, approvals, and expiration workflows address more than storage alone.
• Search without external indexing: Teams can search across document properties and comments without deploying a separate indexing service.
• Self-hosted control: Files are stored on the local server, giving organizations control over their own deployment and storage environment.

Cons

• Requires technical ownership: The organization must provide and maintain a compatible web server, PHP, and database environment.
• Large uploads may need server changes: Raising the application limit alone may not be enough; PHP settings can also constrain uploads.
• Enterprise pricing is custom: Buyers cannot compare its annual cost with Community before requesting pricing.
• Some extensions are paid: Organizations needing functions such as export or user import may face additional costs.

Alternatives

Compare document management software if you want to survey the broader category before settling on a self-hosted system.

• Group-Office is worth considering if mobile access matters: it lists Android and iOS support alongside self-hosted and desktop platforms. Its Community plan is free for unlimited users, while Professional is €439 a month.
• LogicalDOC may fit teams that need API access: its free Community plan includes SOAP and REST APIs, advanced search, a web UI, and basic access control.
• OpenKM is another freemium document-management option with a free plan and free trial.
• Invenio is a free open-source alternative for organizations looking for software available across API, Linux, macOS, self-hosted, and web environments.
• SeedDMS is a free option whose stated plan has no user or document limits.
• Transkribus is another freemium choice, with a free plan based on 50 credits.
• FlinkISO may suit teams seeking a broader on-premises QMS: its free plan covers all QMS modules and unlimited concurrent users.
• EPrints is a free, open-source option for organizations able to self-install on a suitable Linux-based server.

Verdict

OpenDocMan is a strong choice for organizations that need structured document reviews and granular access controls without a per-user bill, and can manage their own PHP-based deployment. Its free unlimited-user plan is the main reason to choose it; the server requirements, upload configuration, and lack of a published Enterprise price are reasons to look elsewhere if you want a turnkey or easily budgeted service.