OD
Odoo
Best for: Modular open-source ERP from CRM to accounting
FreeOpen SourceBest Value
Odoo is a modular business suite covering CRM, sales, inventory, accounting, manufacturing, HR and websites. The Community edition is open source and free to self-host; the hosted Enterprise edition is free for one app and priced per user for more.
- Dozens of integrated apps that share one database
- Open-source Community edition, free to self-host
- One app free on Odoo Online, per-user pricing beyond that
Free tier: Listed as free — verify limitsPricing: Free (Community, self-host / One App Free) / ~$24.90/user/mo Standard
ER
ERPNext
Best for: Fully open-source ERP for small and mid-size firms
FreeOpen SourceBest Value
ERPNext is a fully open-source ERP built on the Frappe framework, covering accounting, inventory, manufacturing, HR, payroll, projects and CRM. Every module is free to self-host, with managed hosting available on Frappe Cloud.
- Accounting, inventory, manufacturing and HR in one system
- All modules open source with no per-user licence
- Self-host or use managed Frappe Cloud hosting
Free tier: Listed as free — verify limitsPricing: Free (open source) / paid hosting on Frappe Cloud
OR
Oracle NetSuite
Best for: Cloud ERP for scaling companies
NetSuite is the default cloud ERP for funded startups through mid-market — finance, inventory, and CRM in one suite that grows until the invoice does.
- Unified finance, inventory, CRM
- Multi-entity and multi-currency
- SuiteScript customization platform
Free tier: Check providerPricing: From $999/mo + per user
MI
Microsoft Dynamics 365
Best for: ERP+CRM in the Microsoft cloud
Dynamics 365 Business Central gives SMBs real ERP at per-seat SaaS pricing, woven into Office, Teams, and Power Platform.
- Business Central from $70/seat
- Native Office/Teams integration
- Power Platform extensibility
Free tier: Check providerPricing: $70/mo per user Business Central
IN
Infor CloudSuite
Best for: Industry-specific ERP verticals
Infor sells ERP pre-built for specific industries — healthcare, fashion, food — so less customization stands between go-live and value.
- Deep vertical editions out of the box
- AWS-hosted CloudSuites
- Coleman AI embedded analytics
Free tier: Check providerPricing: From $2500/mo (custom)
EP
Epicor Kinetic
Best for: Mid-market manufacturing ERP
Epicor Kinetic focuses squarely on manufacturers — MES, scheduling, and shop-floor data collection that generalist ERPs bolt on as afterthoughts.
- Built-in MES and shop floor control
- Advanced production scheduling
- Configure-price-quote for make-to-order
Free tier: Check providerPricing: From $2000/mo (custom)