Best Free Inventory Management Software UK (2025)
A straight comparison of every free inventory management option worth considering for UK online sellers — what each plan actually includes, where it falls short, and who it suits.
Why free plans matter (and where they usually catch you)
Most inventory management software has a free tier designed to get you in the door — and most of them have a catch. Either the SKU limit is too low to be useful, the integrations you actually need are paywalled, or the "free" plan expires after a trial period.
This comparison covers the genuinely free options available to UK sellers in 2025 — not free trials, not freemium bait-and-switch. If a plan requires a credit card to start, it's not in this list.
1. Salync — best for eBay and Shopify sellers
Free plan includes: Up to 50 SKUs, 1 connected channel, real-time stock sync, product catalogue, low-stock alerts, CSV import/export.
Salync's free plan is the most useful for UK eBay and Shopify sellers at the smaller end. Unlike most free tiers, it includes real-time stock sync — meaning a sale on eBay actually updates your stock immediately, not on a 30-minute delay. No credit card required to start.
The 50-SKU limit is the main constraint. If you're managing more than that, you'll need to upgrade to the Growth plan at £99/month (2,000 SKUs, 3 channels). But for sellers just starting out with multi-channel selling, the free plan is genuinely useful rather than just a trial.
Best for: eBay and Shopify sellers with up to 50 active SKUs who want real-time sync without paying anything upfront.
2. Zoho Inventory — best for Zoho ecosystem users
Free plan includes: 50 orders/month, 2 users, basic inventory tracking, limited integrations.
Zoho Inventory has a permanently free plan, but the 50-orders-per-month cap is the real limitation — not the SKU count. If you sell more than 50 items in a month (which most active sellers do), the free plan stops processing new orders. You'd need to upgrade to their Standard plan at around £49/month.
It integrates reasonably well with Shopify and Amazon, but eBay UK support is limited on the free tier. If you're already using Zoho Books or Zoho CRM, the integration value is higher — but for pure inventory management, it's not the strongest free option.
Best for: Very low-volume sellers already in the Zoho ecosystem who need basic order + stock tracking.
3. inFlow Inventory — best for product-based businesses with a warehouse
Free plan includes: Up to 100 products, basic stock tracking, purchase orders, no sales channel integrations.
inFlow's free plan is genuinely useful for tracking stock and raising purchase orders — but it has no eBay or Shopify integration at any tier. It's a standalone inventory system, not a multi-channel sync tool. If your priority is keeping track of physical stock in one location without connecting to sales channels, inFlow's free tier is solid.
For multi-channel sellers who need eBay and Shopify to update automatically, inFlow won't solve the problem on any plan.
Best for: Small product businesses tracking physical stock, not multi-channel online sellers.
4. Odoo Inventory — best for technical teams
Free plan includes: One app free (inventory only), unlimited products, basic warehouse management.
Odoo offers its inventory module free as long as you only use that one app. The functionality is substantial — more than most free tiers — but it requires technical setup, and integrations with eBay or Shopify require paid apps or custom development. Not a realistic option for most small sellers.
Best for: Technical businesses comfortable with open-source software who need deep inventory control without channel integrations.
Which free plan is right for you?
Here's the quick summary:
- Selling on eBay and/or Shopify with up to 50 SKUs → Salync free plan
- Already using Zoho and selling fewer than 50 orders/month → Zoho Inventory free
- Tracking physical stock without channel integrations → inFlow free
- Technical team, no channel integrations needed → Odoo free
For most UK online sellers — particularly anyone on eBay or Shopify — Salync's free plan is the most directly useful. The real-time sync is the feature that matters most, and it's included at no cost.
A note on free trials vs free plans
Linnworks, Cin7, Brightpearl, and most enterprise-tier inventory platforms offer free trials — typically 14–30 days — but not permanent free plans. If you're evaluating those, the trial is time-limited and a credit card is usually required. That's a different category from the genuinely free options above.
Related reading
Try Salync free — no card required
Free for up to 50 SKUs. Real-time eBay and Shopify sync included. Start in minutes.