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Open source Katana alternatives: 1 app ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

1 of the 6 Katana alternatives we track are open source. ERPNext ranks highest, with facts last verified Nov 8, 2026.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1ERPNext logoERPNextOpen source—YesWeb, Self-hosted4 of 452.6
  1. ERPNext logo

    1. ERPNextTop pick

    Best for: Small and mid-sized companies that want accounting tied to inventory and operations without licence fees

    Open sourceSelf-hostableWeb, Self-hosted

    52.6

    score / 100

    Why switch from Katana

    Open-source ERP with full manufacturing and accounting that you can self-host for free.

    Pros

    • All modules free under GPL-3.0
    • Accounting shares one database with stock, sales and HR
    • Choice of self-hosting or managed Frappe Cloud

    Cons

    • Overkill for freelancers and very small businesses
    • Implementation takes time or a partner
    • Fewer accountants know it than mainstream tools
    Visit ERPNext Details and reviews
    How this score is calculated
    Editorial fit ×0.346
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is ERPNext a good Katana alternative?

    Verified facts

    4 of 4 verified
    License
    GPL-3.0
    Checked Nov 8, 2026github.com(opens source in a new tab)
    Price
    Free and open source; you pay for hosting
    Checked Nov 8, 2026frappe.io(opens source in a new tab)
    Managed hosting
    From $5/month
    Checked Nov 8, 2026frappe.io(opens source in a new tab)
    Current version
    v16
    Checked Nov 8, 2026frappe.io(opens source in a new tab)