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The Invoice Machine VS xmlvalid

Compare The Invoice Machine VS xmlvalid and see what are their differences

The Invoice Machine

The Invoice Machine is an online invoicing service with a simple and elegant user interface.

Rating
0 reviews
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Alternatives Is it good?
xmlvalid

Validate XML and e-invoices up to 1 GB in your browser: XSD, DTD, RelaxNG and official business rules

Rating
0 reviews
Pricing
Freemium $29 / Monthly (Pro)
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Alternatives Is it good?
Firma.dev
Ship e-signatures in your app today, ~5¢ per envelope (€0.049) sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Billing & Invoicing popularity
100% vs 0%
alternatives listed
240+ vs 9

Base details

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

The Invoice Machine
xmlvalid
Website invoicemachine.com xmlvalid.com
Pricing
Official pricing
Freemium $29 / Monthly (Pro) Official pricing
Platforms —
Web REST API gRPC APISOAP API
Company Startup from Sweden Startup from Ukraine · 1 - 9 employees · 2026
Listed in
Online Payments Money Transfer Invoice Management Accounting & Finance +1
Developer Tools APIs CI/CD XML Data Validation Finance +3

About The Invoice Machine and xmlvalid

In their own words, as submitted to SaaSHub.

The Invoice Machine
xmlvalid

No description of The Invoice Machine yet.

xmlvalid is an online XML validator built for production-size documents and e-invoicing. Validation XSD 1.0, DTD, RelaxNG (XML and compact syntax) 7,700+ Schematron business rules: EN 16931 (UBL and CII), Peppol BIS and PINT, XRechnung, ZUGFeRD / Factur-X, and national rules from France, Italy,...

Read more about xmlvalid

Features and specs

What each product offers, as listed by its team.

The Invoice Machine 5 features
xmlvalid 19 features
  • User-Friendly Interface
    The Invoice Machine offers an intuitive and easy-to-navigate interface, making it simple for users to create and manage invoices without a steep learning curve.
  • Customization Options
    Provides a range of customization options for invoice templates, allowing users to tailor invoices to their brand's aesthetics.
  • Multi-Currency Support
    Supports multiple currencies, enabling users to bill clients from different countries with ease.
  • Automated Reminders
    Allows setting up automated reminders for overdue invoices, reducing the time spent on manually tracking payments.
  • Recurring Invoices
    Enables the creation of recurring invoices for ongoing services, saving time and effort for periodic billing.

Possible disadvantages

  • Limited Integrations
    Offers fewer integrations with third-party applications compared to other popular invoicing solutions, which could limit workflow synchronization.
  • Pricing
    Might be costlier than some other invoicing solutions, especially for small businesses or freelancers.
  • Feature Limitations on Free Plan
    The free plan has limited features, which might not be sufficient for users needing advanced functionalities.
  • Mobile App Absence
    Currently lacks a dedicated mobile app, which might be inconvenient for users needing to manage invoices on the go.
  • Limited Reporting Features
    Provides basic reporting and analytics capabilities, which might not meet the needs of businesses requiring detailed financial insights.
  • Schema languages
    XSD 1.0, DTD, RelaxNG (XML and compact)
  • Business rules
    7,700+ Schematron rules (EN 16931, Peppol BIS and PINT, XRechnung, Factur-X, national CIUS) plus your own .sch
  • Schema catalog
    177 official schemas with all their include files
  • Country guides
    E-invoicing in 24 countries, the profile picked from the invoice automatically
  • Max File Size
    50 MB without an account, 1 GB with a free account (5 GB tested)
  • Batch validation
    A folder or .zip of up to 1,000 documents
  • Privacy
    Validated in the browser, nothing uploaded
  • Input methods
    Upload, paste, URL, or a folder or .zip of up to 1,000 documents
  • PDF invoices
    Factur-X, ZUGFeRD and ISDOC, with PDF/A (veraPDF) and PDF text checks
  • Error details
    Line and column, explanations for libxml2, Java (Xerces) and .NET messages
  • E-invoice Detection
    Profile picked automatically from the document
  • API
    REST (OpenAPI 3.1), SOAP, MCP server, SDKs for PHP, Laravel, Symfony, Python and JavaScript
  • CLI
    CLI (npm @xmlvalid/cli), GitHub Action, GitLab CI, pre-commit
  • URL monitors
    Alerts by email or webhook when a feed starts failing
  • Reports
    PDF, HTML, JSON export, share links
  • Dark Mode
  • Integrations
    n8n, Apify, Postman
  • Monitoring
    URL monitors with email and webhook alerts
  • Free Tools
    XML formatter, XPath tester, XSLT transformer, XML diff, XML to JSON / CSV, XSD generator, XSD to XML, e-invoice viewer

Analysis

An editorial look at what each product does well and who it suits.

The Invoice Machine
xmlvalid

Overall verdict

  • The Invoice Machine is a solid choice for individuals and small businesses looking for a straightforward and effective invoicing solution. Its ease of use and essential features can meet the needs of users who prefer a no-frills invoicing tool.

Why this product is good

  • The Invoice Machine is known for its user-friendly interface and minimalist design, making it easy to create and manage invoices quickly. It offers features such as customizable invoice templates, expense tracking, and automatic reminders for overdue payments. It is cloud-based, allowing access from any device with an internet connection. Users appreciate its simplicity and efficiency, which can save time and reduce administrative hassle.

Recommended for

    Freelancers, small business owners, and entrepreneurs who require a simple, intuitive platform for invoicing and keeping track of client payments without the need for complex accounting features.

No analysis of xmlvalid yet.

Category popularity

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

Score bands 0–20 21–40 41–50 51–60 61–100
The Invoice Machine
xmlvalid
100% 100%
Billing & Invoicing
0% 0%
0% 0%
Data Validation
100% 100%
100% 100%
Online Payments
0% 0%
0% 0%
Finance
100% 100%

Questions & Answers

As answered by people managing The Invoice Machine and xmlvalid.

Which are the primary technologies used for building your product?

xmlvalid's answer:

  • Rust and libxml2 (validation engine), compiled to WebAssembly
  • SaxonJS (Schematron business rules)
  • veraPDF (PDF/A checks)
  • Laravel and Livewire (PHP)
  • Tailwind CSS
  • PostgreSQL, Redis, Meilisearch
  • Cloudflare

What makes your product unique?

xmlvalid's answer:

  • Schema validation and e-invoicing business rules in one place: XSD, DTD and RelaxNG, plus 7,700+ Schematron rules of EN 16931, Peppol BIS and PINT, XRechnung, Factur-X and national formats from France and Italy to Saudi Arabia, Mexico and Brazil
  • Built for large files: a streaming Rust engine (libxml2 compiled to WebAssembly) validates documents up to 1 GB in the browser with flat memory (5 GB tested)
  • 177 official schemas ready to use, and e-invoice profiles detected automatically from the document
  • E-invoice PDFs (Factur-X, ZUGFeRD, ISDOC) checked whole: the XML inside, PDF/A, and the PDF's text against the XML
  • Every error links to a page explaining why it fails and how to fix it, for libxml2, Java and .NET messages
  • The same checks in CI and integrations: REST API, SOAP, MCP server for AI agents, CLI, GitHub Action, n8n

Why should a person choose your product over its competitors?

xmlvalid's answer:

  • Desktop editors (XMLSpy, Oxygen) are powerful but expensive and need installing; xmlvalid works in the browser for free
  • Simple online validators check one schema and stop at a few MB; xmlvalid streams up to 1 GB and ships schemas with all their imports
  • E-invoice validators (KoSIT, Peppol testbeds) check one format each and have no CI tooling; xmlvalid covers many formats and countries, reads PDF invoices, and has an API, CLI and GitHub Action
  • Documents are validated in the browser and not uploaded

How would you describe the primary audience of your product?

xmlvalid's answer:

  • Developers and integrators building or receiving e-invoices (Peppol, XRechnung, Factur-X, FatturaPA, KSeF, ZATCA, CFDI, NF-e, UBL, CII)
  • ERP and accounting software vendors preparing for national e-invoicing mandates
  • Teams that exchange XML with partners: payments (ISO 20022), healthcare (HL7 CDA, FHIR), feeds and sitemaps
  • DevOps engineers who want XML checks in CI pipelines
  • Anyone who needs to validate a large XML file quickly without installing software

What's the story behind your product?

xmlvalid's answer:

xmlvalid is built and run by Oleksii Babintsev, a developer from Ukraine, so questions and bug reports reach the person who builds the engine. It started as a streaming validator for XML files too large for typical online tools, and grew into e-invoicing as countries made structured invoices mandatory: business rules for EN 16931, Peppol, XRechnung and national formats in 24 countries, PDF invoices, an API, CLI and GitHub Action for CI, and monitors for XML feeds. While building it, we found and fixed a slowdown in libxml2's validation of large files and contributed the fix upstream. It launched in October 2026

User comments

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Reviews and articles

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

The Invoice Machine no reviews yet
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