Free software to run your auto parts business
Track every part by number and fitment, manage suppliers, cores and cross-references, scan barcodes, and keep real books - free, on your own computer, with no per-user fee.
No per-user fees. Your data stays on your machine.
The problems every parts seller knows
Part numbers, fitments and a dozen suppliers - and most software either can't keep track or charges per user.
Find the right part, fast
Look up any part by part number, supplier SKU, barcode or your own reference - in seconds.
Suppliers and cross-references
Track each part's supplier numbers and costs, so you always order the right thing at the right price.
Cores and exchanges
Bring cores and exchange units back into stock and keep your numbers straight.
Per-user pricing adds up
Celerp is free, with no per-seat fee - inventory, purchasing, invoicing and accounting in one app.
Up and running in minutes
Download and pick "Automotive Parts"
Install the free app and choose Automotive Parts. Your categories - engine, brakes, body, electrical, interior, tires & wheels - are ready instantly.
Add your stock
Add parts with part number, fitment and supplier SKU, scan barcodes, or import your catalog from a spreadsheet.
Sell and get paid
Sell at the counter or online, raise POs to your suppliers, and let the books update themselves.
Everything your business needs, in one place
No more juggling a spreadsheet, a separate accounting app and a pile of paperwork.
Track part numbers, fitment and your own references - find any part fast.
Supplier SKUs and costs on every part, with POs to restock.
Scan to find, receive or sell - barcode, RFID and NFC.
Send invoices and get books that are always in balance.
Already selling online? Keep it all in sync
Connect your store so orders pull from your stock automatically - no double entry, no overselling.
Sync products, orders and inventory, both ways.
Your WordPress store, kept in step with your stock.
Hand clean, tidy books to your accountant.
Sync happens automatically in the background.
Store and accounting sync come with Celerp Connect ($29/mo). See the Shopify integration →
Why auto parts sellers choose Celerp
The capability of a big system - without the price tag or the per-user fees.
- ✓ Free forever - the whole app, no trial
- ✓ Part numbers, fitment & references
- ✓ Supplier SKUs, costs and POs
- ✓ Cores and exchange handling
- ✓ Barcode, RFID and NFC scanning
- ✓ Multi-location stock with full history
- ✓ Counter, online and trade sales
- ✓ Built-in double-entry accounting
- ✓ Add your whole team - no per-user fee
- ✓ Full REST API and your data on your machine
Free to start. Cheap to grow.
The whole app is free. Add Connect only when you want to connect your store or work remotely.
The complete app - inventory, invoicing and accounting. No account, no trial, no per-user fee.
- ✓ Everything to run your business
- ✓ Add your whole team
- ✓ Works on your own computer
- ✓ Your data stays yours
Connect your online store and reach your whole team from anywhere.
- ✓ Everything in Free
- ✓ Sync your Shopify or WooCommerce store
- ✓ Send clean books to QuickBooks & Xero
- ✓ Use it from any device, anywhere
- ✓ Automatic encrypted backups
- ✓ AI helper for the boring stuff
14-day free trial. Cancel anytime.
Compare that to an automotive or retail ERP at $100s-$1,000s a month, per user.
Questions parts sellers ask
Is it really free?
Yes - the whole app is free forever with no per-user fee. Optional Connect features (store sync, remote access, AI, backups) are a low monthly add-on.
Can it track part numbers and fitment?
Yes. Track each part by part number, supplier SKU, fitment and your own reference, and find any of them in seconds.
Does it handle cores and exchanges?
Yes. Bring cores and exchange units back into stock so your numbers always stay straight.
Does it have an API?
Yes - a full REST API (OpenAPI 3.1), so you can wire Celerp into a parts catalog, your POS, or your own tools.
Do I need to be techy to use it?
Not at all. Download it like any app, pick "Automotive Parts", and you're going.
Run your parts business for free
Download Celerp, choose Automotive Parts, and add your first parts in minutes.
Free forever. No account, no credit card.