Manufacturing ERP that grows with your business
Track bills of materials, manage production orders, monitor raw material consumption, and handle inventory across locations. Free to run on your own computer; add Celerp Connect to put your whole office on it from any browser - one flat price, never per user. Scales from a single user to your entire team.
Free, with open-source modules. No credit card required.
Why manufacturers overpay for ERP
Most ERP vendors charge enterprise prices for basic manufacturing features. Here is what you are really paying for.
Hidden costs add up fast
Odoo charges $38-45/user/mo plus $80-300/mo hosting plus $15-50K consulting. SAP B1 starts at $100/user/mo. For 15 users, that is $22K-62K+ in Year 1 alone.
Consultants required for setup
Most ERPs require certified consultants to configure. Odoo needs weeks of setup. SAP needs 14+ months. You should not need a PhD to run your business software.
Vendor lock-in risk
Your data lives on their servers. If you stop paying, you lose access. If they raise prices, you have no escape. You are renting your own business data.
Staff abandon complex systems
Gartner says 55-75% of ERP implementations fail because users refuse to adopt slow, complicated software. If your team will not use it, it is worthless.
Get started in 3 steps
Download and install Celerp
pip install celerp or download the desktop app. Takes under 2 minutes. Runs on Mac, Windows, or Linux.
Select the Manufacturing preset
Celerp pre-configures BOM fields, production workflows, and reports for manufacturing. All modules are enabled from the start.
Turn your computer into an office server
Run the free app yourself, or add Celerp Connect and one Mac Mini or PC becomes a secure server your whole team reaches from any browser - in the office or remotely. One flat price, no per-user fees, no IT, no consultants.
What you get - included at no cost
Everything a manufacturer needs, built into the core. No modules to buy separately.
Define multi-level BOMs with raw materials, assemblies, and sub-assemblies.
Create production orders, track stages, and monitor raw material consumption.
Track stock levels across locations. Set reorder points and get low-stock alerts.
Automatic COGS calculation from production. Full double-entry accounting included.
Why manufacturers choose Celerp
A modular platform that scales from a single user to your whole office.
- ✓ Multi-location inventory management
- ✓ Manufacturing and bill of materials (BOM)
- ✓ Production order tracking
- ✓ Raw material consumption tracking
- ✓ Lot tracking and batch numbers
- ✓ Barcode scanning
- ✓ Full double-entry accounting
- ✓ Click-to-edit bulk data entry
- ✓ CSV import/export
- ✓ AI operator for queries
Real cost comparison (15-user manufacturer)
| Feature | Celerp | Odoo Enterprise | Katana MRP | SAP B1 |
|---|---|---|---|---|
| Year 1 cost (15 users) | ✓ Free | $22K-62K+ | $9.6K+ | $68K-177K+ |
| Unlimited users | ✓ | ✗ Per-user pricing | ✗ Per-user pricing | ✗ Per-user pricing |
| Setup time | ✓ 2 minutes | Weeks + $15-50K consulting | Days + config | 14+ months |
| Bill of Materials | ✓ | ✓ | ✓ | ✓ |
| Production orders | ✓ | ✓ | ✗ | ✓ |
| Built-in accounting | ✓ | Extra cost | ✗ | ✓ |
| Click-to-edit bulk entry | ✓ | ✗ | ✗ | ✗ |
| Self-hosted | ✓ | Optional | ✗ | ✗ |
| AI operator | ✓ | ✗ | ✗ | ✗ |
| Modular architecture | ✓ | ✗ | ✗ | ✗ |
Celerp: software only, $0. Celerp Connect optional at $29/mo. Competitors: software + hosting + implementation (Year 1 total).
Free. Forever.
No per-user pricing. Add your whole office for $29/mo.
Full manufacturing ERP - BOM, production orders, inventory, accounting.
Download FreeSource-available. Self-hosted. Free forever.
Frequently asked questions
Is Celerp really free for manufacturing?
Yes. The desktop app is free, with a source-available core and open-source MIT modules. It includes BOM, production orders, inventory, and full accounting. No features are locked behind a paywall.
Can Celerp handle complex manufacturing operations?
Yes. Every feature in Celerp is a module, built on the same module API you can use to add your own. That layer is the Code Elastic Layer. Track BOM, production orders, raw materials, and inventory across locations. As you grow, add modules for purchasing, CRM, and more - all self-hosted, no consultants needed. It scales from a single user to a whole office.
Does Celerp handle multi-level BOMs?
Yes. You can define assemblies that contain sub-assemblies, each with their own raw materials. Celerp tracks the full hierarchy and calculates costs automatically.
Can I track raw material consumption per production order?
Yes. When you finalize a production order, Celerp automatically deducts raw materials from inventory and records the cost. You can see exactly what was consumed for each order.
How simple is the setup?
Use it yourself on the free app - one person signed in at a time. To get the whole team on at once, add Celerp Connect: any Mac Mini or PC becomes a secure server everyone reaches from their browser, in the office or remotely - no complex infrastructure, and your existing server works too. One flat price, never per user. Most businesses are running within 30 minutes.
How we make money
The desktop app is free. We charge for optional Connect features: connector sync (Shopify, WooCommerce, Xero, QuickBooks), encrypted backups, and AI. That is it. No hidden fees, no per-user pricing, no data hostage.
Start manufacturing with Celerp today
Free, source-available, self-hosted. Modular architecture that scales with your business. No consultants needed.
Source-available. Self-hosted. Free forever.