Invoice Ninja Alternative

    The MIT-Licensed Invoicing Core, Hosted for You From $9/mo.

    Invoice Ninja ships under the Elastic License v2, which carries commercial-use restrictions. SolidInvoice's core is MIT licensed: no restrictions, ever. We host it for you from $9/month, less than Invoice Ninja's cheapest hosted tier, so there's no server to patch or back up. Prefer to run it yourself? The same MIT-licensed code is free to self-host.

    Invoice Ninja

    $10 to $14/mo

    $120 to $168/year

    VS

    SolidInvoice

    From $9/mo

    14-day free trial

    From $9/mo, under Invoice Ninja's cheapest hosted tier
    Start Free Trial View Pricing

    Free 14-day Pro trial. No credit card required.

    MIT Licensed·Truly open source
    Self-Host Free·Own your data
    14-Day Free Trial·Cancel anytime
    Unlimited Invoices·On every paid plan

    Why Users Switch from Invoice Ninja

    1

    Invoice Ninja's hosted plan starts at $10 to $14/month, more than SolidInvoice's hosted plan from $9/month for the same core functionality

    2

    The Elastic License v2 is not true open source by the OSI definition, it restricts how you can use and redistribute the code

    3

    Steeper learning curve: Invoice Ninja's interface is feature-dense in ways that can overwhelm users who just need invoicing

    4

    Advanced customization and white-labelling locked behind higher-priced hosted tiers

    Side-by-Side Pricing

    PlanMonthly PriceAnnual CostYour Savings
    Invoice Ninja$10 to $14/mo$120 to $168/yearN/A
    SolidInvoice ✓From $9/moFrom $90/yearSave $30 to $78/year

    SolidInvoice's core is MIT licensed and open source.

    Feature Comparison

    SolidInvoice outperforms Invoice Ninja on 4 of 11 comparisons

    FeatureSolidInvoiceInvoice Ninja
    Professional invoicing
    Online payments (Stripe, PayPal)
    Recurring billing
    Client management
    Multi-currency support
    Self-hosted option (free)
    Open source licenseAdvantageMIT LicenseElastic License v2
    REST API accessPro and up
    Simple onboardingAdvantage
    No feature tier gates (self-host)Advantage
    Starting hosted priceAdvantagefrom $9/mo$10 to $14/mo

    Switch in a day, not a week

    Moving from Invoice Ninja is straightforward. Most users are live on SolidInvoice within hours.

    1

    Start your free trial

    Create your SolidInvoice account in 30 seconds. No credit card required.

    2

    Add your active clients

    Add the clients you're currently billing to SolidInvoice. It takes a few minutes. Keep Invoice Ninja in read-only mode for historical records.

    3

    Go live

    Send your first invoice, set up online payments, and you're done.

    Ready to make the switch?

    Professional invoicing, online payments, and recurring billing. From $9 a month.

    Start Free TrialAbout the open-source project

    Free 14-day Pro trial. No credit card required.

    Common Questions About Switching from Invoice Ninja

    Invoice Ninja uses the Elastic License v2 (ELv2), which is source-available but not open source by the OSI definition. ELv2 restricts you from using the code to offer a competing hosted service and has other commercial use limitations. SolidInvoice uses the MIT License, one of the oldest and most permissive licenses in software. You can use it, modify it, and distribute it for any purpose, commercial or not, with zero restrictions beyond attribution.

    Most people use the hosted cloud plan, from $9/month with a 14-day free trial, so there's no server to set up, patch, or back up. The underlying core is MIT licensed and free to self-host if you'd rather run your own infrastructure, but the cloud plan is the faster path for most teams.

    Yes. SolidInvoice's self-hosted version is the same codebase as the cloud version: unlimited invoices, recurring billing, Stripe and PayPal integration, multi-currency, client management, and team roles. Invoice and quote templates are the one cloud-only feature. Otherwise the difference is just who manages the infrastructure.

    SolidInvoice doesn't have a built-in import tool yet, data import is on our roadmap. The quickest way to switch is to add your active clients to SolidInvoice manually and start fresh for new invoices. Keep your Invoice Ninja account for historical records in the meantime. Contact our support team if you need guidance on the transition.

    Yes. SolidInvoice has been in active development since 2014 with regular releases. The source code is publicly available on GitHub, you can review the full commit history and release cadence before deciding to switch.

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