Best Inventory Software in 2026: 8 Tools Compared

Zoho Inventory is our pick for most small sellers because the free plan covers real work, not just a demo. It tracks stock across online channels, manages orders and purchase orders, and connects with Zoho Books so sales and accounting stay in step. For a seller moving from spreadsheets, that combination removes the most common errors: selling stock you do not have and losing track of what was ordered.

The free plan's monthly order cap is the main limit, so growing sellers will need a paid tier sooner or later. Higher tiers add more orders, users and locations, and warehouse features deepen as you pay more. If you already use Zoho Books, the native connection is a strong reason to start here. If you use QuickBooks instead, check the integration options before you commit.

Square for Retail suits shops where most sales happen across a counter. Because the point of sale and the stock list share one system, every sale updates inventory at once, and you can scan barcodes, track variants and set low-stock alerts without a separate tool. The free plan covers basic inventory for a single location, which is enough for many small shops to start.

The limits show up as you grow. Multi-location stock transfers, advanced purchase orders and deeper reporting sit on paid plans, and businesses with complex warehouse needs will outgrow it. If your shop already runs on Square, though, adding its retail inventory tools is the simplest path to accurate stock, since your staff already knows the system.

Sortly is the pick when your inventory is physical stuff you need to find, count and track, rather than thousands of online orders. Each item gets a photo, a location and custom fields, so a team can see what an item looks like and where it sits without memorizing SKU codes. Mobile barcode and QR scanning make stock counts faster, and the interface is simple enough for staff who have never used inventory software.

It is not an order management system in the same sense as Zoho or Cin7. High-volume sellers will miss deeper order, shipping and accounting features, and some features such as purchase orders sit on higher tiers. For equipment, supplies, materials and small product catalogs, though, Sortly's visual approach is easier to adopt and easier to keep up to date.

inFlow Inventory is built for businesses that sell to other businesses. It handles purchase orders, quotes, customer-specific pricing and showroom workflows that consumer-focused tools often skip, and its reporting gives a clear view of stock value and sales by customer. For wholesalers and distributors, those features matter more than a long list of marketplace connections.

The entry price is higher than Zoho or Square, and there is no free plan, only a trial, so it suits businesses with enough volume to justify the cost. Product setup also takes care, since accurate B2B pricing and stock data pay off only when the catalog is clean. If your customers are businesses and your orders involve quotes and purchase orders, inFlow is worth the trial.

Katana is the pick for businesses that make what they sell. It combines inventory tracking with production planning, so raw materials, work in progress and finished goods stay in one view, and bills of materials show exactly what each product needs. When a sales order arrives, Katana can show whether you have the materials to make it, which prevents promising stock you cannot produce.

Pure resellers will not need most of this, and the paid plans reflect a manufacturing tool rather than a basic stock tracker. There is a free tier for small catalogs, which is a good way to test whether production planning fits your workflow. If you assemble, build or craft products, Katana fills a gap that general inventory tools leave open.

Cin7 Core, formerly DEAR Systems, suits brands that have outgrown basic tools. It syncs stock across sales channels and warehouses, automates order routing and purchasing, and includes a B2B portal for wholesale customers. For a business selling on several marketplaces plus its own site, with stock in more than one location, that depth prevents the oversells that cheaper tools allow.

The price and setup effort are the trade-offs. Entry plans cost far more than Zoho or Square, and getting channels, warehouses and accounting connected properly takes time and care. Below a certain order volume, that cost is hard to justify. When stock errors start costing real sales and customer trust, Cin7 Core is the step up that fixes them at scale.

Odoo Inventory appeals to businesses that want to shape the software to their process rather than adapt their process to the software. Its inventory app covers stock moves, warehouses, barcode scanning and replenishment, and it can grow into a wider system with sales, accounting and manufacturing modules. A free option for a single app makes it one of the cheapest ways to start with a capable tool.

Flexibility is also the catch. Setting up Odoo well takes more effort than a ready-made small business tool, and teams without technical help may find the options overwhelming. If you have someone comfortable with configuration, or you already use other Odoo apps, it offers a lot of power for the price. If you want something that works in an afternoon, a simpler tool is a better start.

Fishbowl is the pick for manufacturers and distributors that run their accounting on QuickBooks and need serious warehouse control. It handles bills of materials, work orders, multi-location stock and barcode-directed picking, and it syncs with QuickBooks so inventory movements and accounting stay aligned. For operations where picking accuracy and production tracking drive costs, that depth matters.

The price and complexity rule it out for small sellers. There is no free plan, setup is heavier than cloud-only tools, and teams need training to use its warehouse features well. If your business manufactures or distributes at volume and already relies on QuickBooks, Fishbowl is a proven fit. If you sell a small catalog online, start with a cheaper tool and revisit Fishbowl when volume demands it.