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Open Source Employee Monitoring SoftwareUpdated Jun 11, 2026

Sentrifugo Review — Free, Self-Hosted, Open-Source HR and Workforce Visibility

Sentrifugo is a free, open-source HR tool built for teams that want a structured way to track time, activity, attendance, and workforce visibility in a self-hosted environment. Instead of a hosted subscription, you download the software and run it on your own infrastructure, which keeps your people data inside systems you control. It is included in the PeopleOpsClub seed set to support research into open-source monitoring, time visibility, and self-hosted workforce oversight.

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No free trial — the open-source software is free to download and self-host No commitment required.|Maya PatelWritten by Maya PatelMaya PatelMaya PatelEditorSarah covers HR software, payroll platforms, and people ops tools for buyers at the research stage. She focuses on surfacing pricing tradeoffs and implementation realities before the sales cycle shapes the decision.|ChandrasmitaFact-checked by ChandrasmitaChandrasmitaChandrasmitaFact-checkerChandrasmita verifies pricing claims, compliance data, and feature accuracy across HR software categories. She brings direct experience in people operations and HR technology procurement at global organisations.

Pricing model

Free / open source (self-hosted); commercial packaging is custom

Deployment

Self-hosted

Platforms

Web

Free trial

No free trial — the open-source software is free to download and self-host

Legal name

Sentrifugo

Sentrifugo pricing: free open source, self-hosting costs, and commercial packaging

Sentrifugo is positioned as free, open-source software under a self-hosted deployment model. The core appeal is that there is no per-user license fee — you download the software and run it on your own infrastructure. Because of that model, there is no free trial in the conventional sense; the software itself is free to obtain and host.

The seed set also references a Standard commercial plan with custom packaging, but it does not publish exact figures. Treat any commercial pricing as requiring direct validation with the vendor, and budget for the real cost of self-hosting — infrastructure, maintenance, and internal support — rather than assuming free software means a free deployment.

See the full Sentrifugo pricing breakdown
Open Source: Free
Standard: Custom

Verified from the official pricing page on June 16, 2026. View source

Editorial verdict

Why Sentrifugo stands out for self-hosted, open-source workforce visibility buyers

Sentrifugo is a practical shortlist candidate when self-hosting, open-source flexibility, or workforce visibility control matters more than polished enterprise packaging.

The appeal is straightforward: it gives small and mid-sized teams a structured way to track time, activity, and attendance without a per-user subscription, and it keeps data inside infrastructure you own.

The honest caveats are that pricing for any commercial packaging requires validation, and that implementation depth varies depending on how much you self-host and maintain. This is a tool you adopt with engineering buy-in, not a turnkey hosted product.

If open-source control and self-hosting are non-negotiable, Sentrifugo earns a place on the shortlist. If you want a managed, polished, fully supported platform out of the box, a hosted alternative will be a smoother fit.

Sentrifugo is best for

Sentrifugo is best for small and mid-sized teams that want a free, self-hosted way to track time, activity, attendance, and workforce visibility while keeping people data inside infrastructure they control.

It fits organizations with the engineering capacity to deploy and maintain open-source software, and that value control and flexibility over a fully managed hosted experience.

If your buying criteria start with 'open source and self-hosted,' Sentrifugo belongs on your shortlist. If they start with 'fully managed and supported out of the box,' a hosted alternative is the better fit.

Why Sentrifugo stands out

Sentrifugo stands out because it pairs open-source flexibility with a self-hosted deployment model at no license cost — a combination that is uncommon among hosted workforce visibility tools.

Running the software on your own infrastructure keeps time, activity, and attendance data inside systems you control, which matters for teams with strict data-residency or oversight requirements.

The workflow coverage, approval and automation support, and operational reporting give teams a structured way to manage workforce visibility without committing to a per-user subscription.

For organizations that treat self-hosting and open-source control as requirements rather than preferences, that positioning is the differentiator.

Commercial fit

Commercially, Sentrifugo positions itself as a free, open-source, self-hosted option for teams that prioritize control and flexibility over packaged convenience.

The free open-source model makes it an easy pilot for budget-conscious SMBs that can self-host, since there is no per-user license cost to evaluate the software.

Where commercial fit gets less certain is any Standard commercial packaging — the pricing requires validation and implementation depth varies, so the all-in cost depends heavily on how much you self-host versus buy as a supported arrangement.

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Sentrifugo features: workflow coverage, approval automation, and operational reporting

01

Sentrifugo workflow coverage and approval automation

Sentrifugo includes workflow coverage with workflow and approval automation support, giving teams a structured way to route and manage routine people processes consistently.

The automation is oriented toward operational consistency — making approvals and workflows repeatable rather than handled ad hoc.

Sentrifugo workflow and approval support

The tool provides workflow coverage and approval support to standardize how routine people processes are routed and handled. This supports the operational consistency the product is designed around.

Sentrifugo automation for routine processes

Workflow and approval automation help reduce manual handling of recurring tasks, keeping processes consistent across the team. Exact configuration depth depends on your deployment; defer to the product documentation for specifics.

02

Sentrifugo reporting and people insights visibility

Sentrifugo reporting targets operational and people insights visibility, helping teams see workforce activity and attendance trends in a usable form.

The reporting is described as practical in depth — focused on the operational visibility teams need rather than an exhaustive analytics suite.

Sentrifugo operational reporting

Reporting surfaces operational and people insights so teams can monitor workforce visibility. The depth is practical rather than exhaustive; for the full reporting scope, refer to the product documentation.

Sentrifugo people insights visibility

The reporting layer is oriented toward people insights visibility, giving managers a view of activity and attendance. Specific dashboards and exports depend on your self-hosted configuration.

03

Sentrifugo self-hosted, open-source deployment

Sentrifugo uses a self-hosted, web-based deployment model and is offered as free, open-source software, so it runs on infrastructure you own and operate.

This deployment approach keeps time, activity, and attendance data inside systems you control, at the cost of owning provisioning, maintenance, and support yourself.

Sentrifugo self-hosted deployment model

Sentrifugo is deployed on your own infrastructure rather than a vendor cloud, accessed via the web. This gives you control over data location and access but makes setup and maintenance your responsibility.

Sentrifugo open-source licensing

The software is free and open source, with no per-user license fee. Operational costs are limited to infrastructure and the internal effort required to host and maintain the deployment.

Sentrifugo pros and cons: open-source flexibility, self-hosting, and what to validate

Evaluating Sentrifugo means separating what sounds strong in the demo from what holds up after implementation for open source employee monitoring software teams.

Strengths

Where Sentrifugo earns its place for smb teams

Sentrifugo is free and open source with no per-user license cost

Sentrifugo is offered as free, open-source software, so there is no recurring per-user subscription to use it. Teams can download and deploy it without a license fee, which lowers the barrier to adoption for budget-conscious organizations.

For SMBs evaluating workforce visibility tools, this means the software cost is effectively zero, with operational costs limited to the infrastructure and effort required to host and maintain it.

This positioning makes Sentrifugo an accessible starting point for teams that want to trial a structured time, activity, and attendance approach without committing budget up front.

Self-hosted deployment keeps workforce data inside infrastructure you control

Sentrifugo uses a self-hosted deployment model, which means time, activity, and attendance data stays on infrastructure you own and operate rather than a third-party cloud.

For teams with data-residency requirements or a preference for keeping people data in-house, this control is a meaningful advantage over hosted-only alternatives.

Self-hosting also means you set the access, retention, and oversight rules directly, which suits organizations that treat data control as a requirement.

Useful workflow coverage with approval and automation support

Sentrifugo includes workflow coverage along with workflow and approval automation support, giving teams a structured way to route and manage routine people processes.

This coverage supports operational consistency, which is one of the tool's stated design goals — keeping processes repeatable rather than ad hoc.

For teams standardizing how time, activity, and attendance are tracked and approved, this workflow layer is a practical foundation.

Practical reporting depth for operational and people insights

Sentrifugo provides reporting aimed at operational and people insights visibility, helping teams see workforce activity and attendance trends.

The reporting depth is described as practical — focused on the operational visibility teams need rather than exhaustive analytics.

For SMBs that want clear, usable reporting without a heavyweight analytics layer, this is a sensible balance.

Limitations

What to press on in Sentrifugo pricing calls before signing

Sentrifugo pricing for any commercial packaging requires validation

While the open-source software is free, the seed set references a Standard commercial plan with custom packaging and no published price. That means any commercial or supported arrangement requires direct validation with the vendor.

Buyers cannot reliably budget for a commercial deployment from public information alone, so you will need to request exact pricing and packaging details in writing before committing.

Until that pricing is confirmed, the safest assumption is that commercial costs are unknown and must be validated case by case.

Implementation depth varies by plan and self-hosting effort

Implementation depth varies depending on the plan and how much you self-host. A pure open-source deployment puts setup, configuration, and maintenance on your team.

This means the experience is not uniform — what you get depends on your infrastructure, internal capacity, and any commercial support you arrange.

Teams without engineering capacity to deploy and maintain self-hosted software should weigh this operational overhead carefully before adopting.

No free trial and a self-hosted model means you own deployment and support

Because Sentrifugo is free open-source software, there is no hosted free trial — you evaluate it by downloading and running it yourself.

Self-hosting means deployment, updates, and ongoing support are your responsibility rather than a vendor's, which adds operational load.

For teams accustomed to managed SaaS, this shift in responsibility is the main adjustment to plan for before adopting.

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Sentrifugo plan structure and what buyers should verify

What 'free and open source' actually means for Sentrifugo buyers

The open-source model means there is no recurring license fee to use Sentrifugo. You are free to download, deploy, and run it on your own servers, which is the headline advantage for teams that want control over cost and data location.

The cost that remains is operational. Self-hosting means you provision and maintain the infrastructure, apply updates, and handle support internally. For teams with engineering capacity this is a fair trade; for teams without it, the operational overhead is the real price.

What buyers should validate about Sentrifugo commercial packaging before committing

The pack references a Standard commercial plan with custom packaging but does not publish a price. If you are considering a commercial or supported arrangement rather than pure self-hosting, request exact pricing and packaging details from the vendor in writing.

Because implementation depth varies by plan, confirm precisely what is included — support scope, update cadence, and any limits — before committing, so the commercial option is comparable against the free self-hosted route.

Before you sign

Questions to ask Sentrifugo before you commit

If Sentrifugo is on your shortlist, the evaluation should focus on self-hosting effort, any commercial packaging cost, and the real operational overhead. Here is what to nail down before committing.

1

Confirm your team's capacity to deploy and maintain a self-hosted tool. Sentrifugo is self-hosted open-source software, so deployment, updates, and support are your responsibility. Before adopting, confirm you have the engineering capacity to provision the infrastructure and maintain it over time. This will tell you whether the free software translates into a sustainable deployment for your team.

2

Request exact pricing and packaging for any commercial Standard plan in writing. The seed set references a Standard commercial plan with custom packaging but no published price. If you are considering a supported or commercial arrangement, ask the vendor for exact pricing, support scope, and update cadence in writing. This lets you compare the commercial option against the free self-hosted route on equal terms.

3

Validate which workflows, reporting, and automation you actually need. Sentrifugo covers workflows, approvals, automation, and operational reporting. Map these against your real requirements for time, activity, attendance, and workforce visibility before deploying. Many teams find the open-source self-hosted deployment covers their needs without any commercial packaging.

4

Plan for data ownership and long-term maintenance from the start. Because the data lives on your infrastructure, you own backups, retention, and security. Confirm your backup and update process and how you will keep the deployment current. This is especially important for self-hosted tools, where losing internal maintenance capacity can put the deployment at risk.

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Frequently asked questions about Sentrifugo open-source HR and pricing

Is Sentrifugo free?

Yes. Sentrifugo is offered as free, open-source software under a self-hosted deployment model, so there is no per-user license fee to use it. You download and run it on your own infrastructure. The seed set also references a Standard commercial plan with custom packaging, but it does not publish a price — confirm any commercial costs directly with the vendor. Note that 'free software' still carries operational costs for hosting, maintenance, and support.

Is Sentrifugo self-hosted or cloud-based?

Sentrifugo uses a self-hosted deployment model and is accessed through the web. You run it on infrastructure you own and operate rather than a vendor-managed cloud. This keeps time, activity, and attendance data inside systems you control, but it also means provisioning, updates, and support are your team's responsibility. It is best suited to teams with the engineering capacity to deploy and maintain open-source software.

Does Sentrifugo offer a free trial?

No. Because Sentrifugo is free, open-source software, there is no hosted free trial. You evaluate it by downloading and running it yourself on your own infrastructure. This is different from a hosted SaaS trial — there is no vendor-managed environment to sign into for a time-limited test. The trade-off is that the software is freely available to obtain and host without a license fee.

What is Sentrifugo used for?

Sentrifugo gives teams a structured way to track time, activity, attendance, and workforce visibility in a self-hosted or open environment. It includes workflow coverage with approval and automation support, plus reporting oriented toward operational and people insights visibility. It is included in the PeopleOpsClub seed set to support research into open-source monitoring, time visibility, and self-hosted workforce oversight, and is positioned for SMB teams.

Who is Sentrifugo best for?

Sentrifugo is best for small and mid-sized teams that want a free, self-hosted way to manage time, activity, attendance, and workforce visibility while keeping people data inside infrastructure they control. It fits organizations with engineering capacity to deploy and maintain open-source software and that value control and flexibility over a fully managed hosted experience. Teams wanting a polished, fully supported, turnkey platform out of the box may prefer a hosted alternative.

Sentrifugo alternatives worth comparing

Sentrifugo is a strong choice for teams that prioritize free, open-source, self-hosted workforce visibility, but it is not the right fit for every buyer. Here are the directions worth evaluating based on where Sentrifugo's self-hosted, open-source model may fall short.

ProductPricingFree trial
SentrifugoThis toolFree / open source (self-hosted); commercial packaging is customNo
OrangeHRMFree / open sourceYes
TimeTrexFree / open sourceYes
ActivityWatchFree / open sourceNo
Open Time ClockFree / open sourceNo
EmpMonitorFree / open sourceYes

OrangeHRM

Free / open sourceFree trial

OrangeHRM gives teams a more structured way to track time, activity, attendance, or workforce visibility in self-hosted or open environments.

Compare

TimeTrex

Free / open sourceFree trial

TimeTrex gives teams a more structured way to track time, activity, attendance, or workforce visibility in self-hosted or open environments.

Compare

ActivityWatch

Free / open source

ActivityWatch gives teams a more structured way to track time, activity, attendance, or workforce visibility in self-hosted or open environments.

Compare

Open Time Clock

Free / open source

Open Time Clock gives teams a more structured way to track time, activity, attendance, or workforce visibility in self-hosted or open environments.

Compare

EmpMonitor

Free / open sourceFree trial

EmpMonitor gives teams a more structured way to track time, activity, attendance, or workforce visibility in self-hosted or open environments.

Compare
See all Sentrifugo alternatives

Before you decide

The research that changes how buyers shortlist Open Source Employee Monitoring Software.