Offline-First Desktop LIMS

A Professional LIMS That Runs
Without the Internet

Built for labs that can't rely on the cloud — medical labs, industrial testing facilities, secured environments. Install it, connect your instruments, and go. All data stays on your machine.

Windows 10+ & macOS 12+ · One-time purchase · No subscription

Sound Familiar?

If any of these describe your lab, you're not alone — and there's a better way.

No reliable internet

Cloud LIMS becomes useless when the connection drops — and in many labs, it drops often.

Cloud LIMS too expensive

Monthly subscriptions for features you don't use. SimpleLabOS Offline is a one-time purchase.

Data can't leave the premises

Regulatory or policy requirements mean patient and sample data must stay on-site.

Legacy instruments, no modern API

Your analyzers speak ASTM or HL7 over serial — not REST. You need direct instrument connection.

Still using Excel for results

Manual entry, copy-paste errors, no audit trail, no QC rules. It works — until it doesn't.

One Desktop App for Your Entire Lab Workflow

From sample registration to final report — everything runs locally on your machine.

End-to-End Sample Management

Patient registration, sample collection, order entry, result recording, report verification — all in one flow.

  • Barcode tracking
  • Priority tagging (STAT / Urgent / Routine)
  • Multi-department support

Direct Instrument Connection

Connect your analyzers directly via serial or TCP. No middleware, no cloud relay.

  • ASTM E1381 / E1394 serial
  • HL7 v2.x TCP / MLLP
  • Bidirectional communication

Westgard QC Engine

Six Westgard multi-rules with automatic out-of-control detection. Meets CLIA, CAP, and ISO 15189.

  • Real-time σ deviation
  • QC material management
  • Instrument lockout on failure

Professional Reports

Generate PDF, Excel, and CSV reports locally. Color-coded flags, reference ranges, A4 print-ready.

  • PDF / Excel / CSV export
  • Professional formatting
  • All processing stays local

TAT Monitoring

Track turnaround time in real time. Configurable thresholds by priority level with at-risk alerts.

  • STAT / Urgent / Routine thresholds
  • Bottleneck identification
  • At-risk sample alerts

Users & Audit Trail

Role-based access control with full audit logging. Every action is recorded for compliance.

  • Admin / Technician / Viewer roles
  • bcrypt password hashing
  • Complete audit history

From Sample to Report in Five Steps

A streamlined workflow designed for how labs actually work.

1

Register

Register patient & sample

2

Order

Place test orders

3

Receive

Receive results from instruments or enter manually

4

Review

Review & verify — auto QC, Delta Check, critical value alerts

5

Report

Generate & export report — PDF, Excel, or print

Secure and Compliant, Out of the Box

Built for labs that need to meet regulatory requirements without depending on external infrastructure.

Encrypted SQLite Database

OS keychain integration via Electron safeStorage

Full Audit Trail

Every action logged with user, timestamp, and details

CLIA / CAP Ready QC

Westgard multi-rules with automatic lockout

ISO 15189 / ISO 17025

Designed for accreditation requirements

Role-Based Access Control

Admin, Technician, and Viewer permission levels

Local Backup & Restore

One-click database backup, no cloud dependency

Technical Specifications

Platform
Windows 10+, macOS 12+
Architecture
Electron + React + SQLite (offline-first)
Database
Encrypted SQLite (WAL mode)
Instrument Protocols
ASTM E1381/E1394 (serial), HL7 v2.x (TCP/MLLP)
Report Formats
PDF, Excel (.xlsx), CSV
Languages
中文, English, Español, Français, Português, العربية
Install Size
~150 MB
Internet Required
Only for initial activation
Data Storage
100% local
6 Languages Built In

Your Language, Your Lab

Switch languages instantly. The entire interface — menus, labels, reports — adapts to your team's preferred language.

🇨🇳中文
🇺🇸English
🇪🇸Español
🇫🇷Français
🇧🇷Português
🇸🇦العربية

Frequently Asked Questions

Does it require internet?

No. After a one-time activation, SimpleLabOS Offline runs entirely without internet. All data processing, instrument communication, QC calculations, and report generation happen locally on your machine.

Which instruments are supported?

SimpleLabOS Offline connects to any analyzer that speaks ASTM E1381/E1394 over serial (RS-232) or HL7 v2.x over TCP/MLLP. This covers the vast majority of clinical chemistry, hematology, and immunoassay analyzers.

Is my data secure?

Yes. The database is encrypted using your operating system's keychain (via Electron safeStorage). All data stays on your local machine — nothing is sent to the cloud. Role-based access and full audit logging add additional layers of protection.

Can I install on multiple computers?

Each license activates one device. If you need to run SimpleLabOS on multiple workstations, you'll need a license for each. Contact us for volume pricing.

How do I migrate from Excel?

SimpleLabOS Offline supports CSV import for patient data, test catalogs, and historical results. We also provide migration assistance to help you transition smoothly from spreadsheet-based workflows.

Can multiple people use it?

Yes. SimpleLabOS Offline supports multi-user login with role-based access control (Admin, Technician, Viewer). It's designed for single-machine use where multiple staff members log in with their own accounts.

Is there a Linux version?

Currently, SimpleLabOS Offline is available for Windows 10+ and macOS 12+. Linux support is on the roadmap — contact us if this is a priority for your lab.

Ready to Leave Excel Behind?

Download SimpleLabOS Offline. Install in 5 minutes. Start using it immediately — no internet, no subscription, no compromise.

One-time purchase · No subscription · No internet required after activation