HR software your company actually owns
Leave, claims, benefits, employee records and policies for Singapore teams. Download it, run it on your own infrastructure, keep your employees’ data in your own database. No licence fee, no per-seat pricing, no vendor who can change the terms.
One command with Docker, or Node.js and PostgreSQL directly. No third-party account required.
Before anything else
It does not do payroll, and that is deliberate
There is no CPF calculation, no pay runs and no payslip generation. Not a roadmap gap — payroll was built, reviewed and removed before this release.
The CPF engine had never been verified against CPF Board’s own figures across the full matrix of age bands, residency statuses, PR graduation years and wage ceilings. Payroll arithmetic that is nearly right is worse than none: it produces confident, plausible, wrong numbers, and the employer wears the underpayment. Shipping that in software anyone can download and point at real employees would have been indefensible.
Use a dedicated payroll provider or your accountant. OTG HRMS holds the employee data those processes need. The full scope boundary lists everything else it does not do.
What it does
Eight modules, each documented properly
Every module has its own page explaining what it decides for you, where you stay in control, and what it will not do.
Leave management
Entitlements that follow Singapore statute, applications, approvals and a shared team calendar.
Read more →Claims & expenses
Categorised expense claims with receipt capture, optional OCR, and approval routing that mirrors leave.
Read more →Employee records
One record per person: personal details, employment history, documents, reporting lines and access level.
Read more →Benefits & caps
Flexible-benefit, medical and health-checkup allowances with per-period caps enforced when a claim is filed.
Read more →Policies & acknowledgements
A versioned policy library where you can prove who acknowledged which version, and when.
Read more →Meeting rooms
Room booking that sends real calendar invites and handles replies, including proposed new times.
Read more →Roles & access control
Five roles, checked on the server, with session revocation and a complete audit trail.
Read more →Privacy & data-subject tools
Subject-access export, retention purging and audited access — the operational side of PDPA compliance.
Read more →How it feels to use
One leave request, start to finish
- 01
Employee applies
Picks dates on the apply form. Weekends and gazetted public holidays are excluded before they submit, so the deduction is never a surprise.
- 02
Approver decides
An email arrives with the request and two one-click buttons. Approve from a phone in under ten seconds, no login required.
- 03
Balances update
Entitlement, carry-forward, adjustments and used days are tracked separately, so any balance can be explained rather than just asserted.
- 04
It stays auditable
Who decided, when, and any comment — recorded. Manual corrections carry a mandatory reason and land in an append-only audit log.
Why self-host
Your database, in your account, in your region
Not a vendor’s multi-tenant database with your rows in it. You can dump it, move it or delete it on any day, without asking anyone’s permission and without an export request.
No per-seat pricing
Cost does not scale with headcount, because there is no licence. Hiring ten people changes nothing about what you pay.
No shutdown risk
The source is yours under the AGPL. If this project stops tomorrow, your installation keeps running and you can fork it.
Data stays in Singapore
Pick a Singapore region and the PDPA transfer-limitation analysis never comes up. Every major provider offers one.
Documentation
Start with these three
What OTG HRMS is, and what it deliberately is not
Read this first. It draws the boundary around the product honestly, including the sizeable thing it does not do.
6 min readInstall it without a developer
One command, one settings file, no accounts to create. What the Docker route actually involves, and the honest limits of how far it gets you.
9 min readWhat running your own HRMS makes you responsible for
A plain-language walk through your PDPA obligations as the organisation holding the data, which of them the software helps with, and which it cannot touch.
Try it before you commit to anything
Clone the repository, point it at a throwaway database and create a company. If it does not fit how your team works, you have lost an afternoon and nobody has your data.