Free inventory and purchasing software for manufacturers
Track items, vendors, and purchase orders in one shared system. Use it for $0/month, stay free as long as it fits, and upgrade only when your team needs more.
$0/month
Up to 5 team members
No trial deadline
A real system, not a temporary trial
Start with the workflows most manufacturers need first: inventory and purchasing. If Free keeps solving the problem, keep using it.
Inventory and purchasing are included.
Free for up to 5 team members
Unlimited access to free tools
Track items, locations, customers, vendors, and files
Manage purchase orders, receiving, lots, and serial numbers
Fix the daily work first
Most teams do not need a full ERP rollout to get value. They need clear answers to the questions that slow down the shop, the buyer, and the person waiting on materials.
Counts you can trust
See what is on hand, where it is, and what changed without chasing stale spreadsheet rows.
Purchasing without the scavenger hunt
Keep vendors, purchase orders, receipts, and files together so every buy is easier to follow.
One answer for the team
Give the shop, purchasing, receiving, and leadership the same records instead of separate lists.
What you get for $0/month
Put the basic records in one place and invite the people who need them. No full ERP project required.
Items
Create item records with part numbers, units, categories, photos, files, lots, and serial numbers.
Stock movements
Record receipts, use, transfers, adjustments, and location-level stock history.
Purchasing
Manage vendors, listings, purchase orders, receiving, open orders, and attached files.
Shared access
Give buyers, receiving, production, and leadership one company workspace.
Free first. Add more when it earns its keep.
Start with inventory and purchasing. Add finance, manufacturing, quality, AI, onboarding, or support when those tools are worth paying for.
Start here
Free
For manufacturers moving inventory and purchasing out of spreadsheets.
Free for up to 5 team members
Unlimited access to free tools
Track items, locations, customers, vendors, and files
Manage purchase orders, receiving, lots, and serial numbers
Finance + setup help
Growth
For teams ready to add accounting workflows and hands-on setup help.
Everything in Free
Add up to 20 team members with dedicated roles and permissions
Manage your chart of accounts, invoices, and general ledger
Custom onboarding and setup help
Production + quality
Business
For teams ready to connect inventory, purchasing, production, quality, and AI.
Everything in Growth
Add up to 50 team members
Manufacturing AI assistant with powerful workflows
Track production, work orders, and jobs
Custom rollout
Enterprise
For teams rolling out Postseam across multiple site and departments.
Everything in Business
Unlimited team members
Unlimited access to all modules and features
24/7 support + dedicated account manager
Common questions
Is this a free trial?
No. Postseam is $0/month and is not limited by a trial deadline.
What is included in the Free plan?
Inventory and purchasing tools for items, locations, customers, vendors, purchase orders, receiving, lots, serial numbers, files, and up to 5 team members.
Can my team stay on Free?
Yes. Stay on Free as long as inventory and purchasing are all you need.
When does it make sense to upgrade?
Upgrade when another workflow should live in Postseam. Growth adds finance, support, and onboarding. Business adds production, quality, AI, and direct contact. Enterprise is for custom rollout needs.
Start with Free, then choose your path
Tell us what you want to move out of spreadsheets first. We will help you start with the free plan. Stay there as long as it fits, or upgrade when your next workflow is ready.
Stay free as long as it fits
Inventory and purchasing included
Upgrade only when the next workflow is worth it