Software Alternatives & Startups

Invoice Ninja VS NormAPI

Compare Invoice Ninja VS NormAPI and see what are their differences

Invoice Ninja

Invoice Ninja is a free, open-source solution for invoicing and billing customers.

Rating
0 reviews
Pricing
Open source
NormAPI

REST API for German e-invoices: generate XRechnung (UBL/CII) and ZUGFeRD from JSON, and validate XML and PDF invoices against the official KoSIT rule set, with a plain-language explanation for every business-rule finding. Validation is free.

Rating
0 reviews
Pricing
Freemium โ‚ฌ49 / Monthly (Starter, 500 invoices)

Which is more popular?

Based on our record, Invoice Ninja seems to be more popular. It has been mentioned 7 times since March 2021.

social mentions
7 vs 0
Billing & Invoicing popularity
100% vs 0%
alternatives listed
240+ vs 7

Base details

Website, pricing, platforms and company facts side by side.

Invoice Ninja
NormAPI
Website invoiceninja.com normapi.com
Pricing
Open source Official pricing
Freemium โ‚ฌ49 / Monthly (Starter, 500 invoices) Official pricing
Listed in

About Invoice Ninja and NormAPI

In their own words, as submitted to SaaSHub.

Invoice Ninja
NormAPI

No description of Invoice Ninja yet.

NormAPI generates XRechnung (UBL and CII) and ZUGFeRD invoices from JSON and validates XML and PDF invoices against the official KoSIT rule set, as a REST API and as a free browser validator without sign-up. Generated invoices are validated before they are returned, every response names the...

Read more about NormAPI

Features and specs

What each product offers, as listed by its team.

Invoice Ninja 8 features
NormAPI 5 features
  • Open Source
    Invoice Ninja is open-source, which means users have the flexibility to customize the software according to their needs, and benefit from community contributions.
  • Feature-Rich
    The application offers a broad range of features, including invoicing, expense tracking, client management, and time tracking, making it suitable for freelancers and small to medium-sized businesses.
  • Competitive Pricing
    Invoice Ninja provides a free tier with essential features and affordable premium plans that offer more advanced functionalities.
  • Customizable Invoices
    Users can easily create and customize professional invoices with their own branding, colors, and templates.
  • Multi-Currency and Multi-Language Support
    The platform supports multiple currencies and languages, which is beneficial for businesses dealing with international clients.
  • Integrations
    Invoice Ninja integrates with various payment gateways, accounting software, and other business tools to streamline operations.
  • Mobile-Friendly
    The application is mobile-friendly, providing a seamless experience across different devices, enabling users to manage their invoices on the go.
  • Data Ownership
    With the self-hosted version, users have full control over their data, ensuring higher data privacy and security.

Possible disadvantages

  • Learning Curve
    Due to its wide range of features, new users might find the software complex and may require time to learn how to use it effectively.
  • Support Limitations
    Users of the free tier have limited access to customer support, relying mainly on community forums and online documentation.
  • Occasional Bugs
    As with any software, users may encounter bugs or glitches, especially in the open-source community version, which might require technical knowledge to resolve.
  • Advanced Features Cost Extra
    More advanced features and additional integrations are only available in the paid plans, which might not be affordable for very small businesses or freelancers.
  • Customization Complexity
    While customization is a strength, it can be overwhelming for users without technical skills to modify the open-source code or tweak advanced settings.
  • Limited Reporting
    The reporting features might not be as comprehensive as those offered by more established accounting software, which could be a drawback for businesses needing in-depth financial analysis.
  • API-first developer approach
    NormAPI is built for developers, so its services can be integrated into applications through REST-style endpoints instead of manual workflows. This usually means faster integration and easier automation. I could not verify the details of the current product, so check the live site for the exact feature set.
  • Reduces in-house development effort
    Using a hosted API lets teams avoid building and maintaining this functionality themselves. That saves engineering time and ongoing maintenance, especially for small teams and startups.
  • Scalable, usage-based model
    Hosted API services like this typically let you start small and scale with demand, so you don't have to manage infrastructure. Confirm the actual pricing tiers and rate limits on the official pricing page.
  • Language-agnostic integration
    Because it is exposed over HTTP, it can be called from almost any language or platform, such as Python, JavaScript, Ruby, or PHP. This makes it flexible across different tech stacks.
  • Quick start for prototyping
    A hosted API usually requires only an account and an API key, so teams can test and prototype quickly before committing to a larger integration.

Videos

Walkthroughs and reviews on video.

Invoice Ninja 2 videos + Add
NormAPI 0 videos + Add

INVOICE NINJA REVIEW ๐Ÿ’ธ TUTORIAL ๐Ÿฆ INSTALL (SELF HOSTED) ๐Ÿ’ป $50 FREEBIE ๐Ÿ’ฐ

More videos

  • - Invoice Ninja | Overview

No NormAPI videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0โ€“100% relative to the other.

Score bands 0โ€“20 21โ€“40 41โ€“50 51โ€“60 61โ€“100
Invoice Ninja
NormAPI
100% 100%
0% 0%
0% 0%
100% 100%
99% 99%
1% 1%
100% 100%
0% 0%

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Invoice Ninja no reviews yet
NormAPI no reviews yet

We have no reviews of NormAPI yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Invoice Ninja 7 mentions
NormAPI 0 mentions

View more

Tracking NormAPI since Oct 2026.

Alternatives to Invoice Ninja and NormAPI

When comparing Invoice Ninja and NormAPI, you can also consider the following products.