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CustomBooks VS xmlvalid

Compare CustomBooks VS xmlvalid and see what are their differences

CustomBooks

AccountingSuite is a feature-rich cloud accounting software that provides inventory management with general ledger and online banking. 1 system to do it all

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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ReleasePad
Changelog software that turns GitHub commits into release notes your users actually see — inside your app. Built for founders and teams who ship fast. 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?

Inventory Management popularity
100% vs 0%
alternatives listed
119 vs 9

Base details

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

CustomBooks
xmlvalid
Website custombooks.com xmlvalid.com
Pricing
Official pricing
Freemium $29 / Monthly (Pro) Official pricing
Platforms —
Web REST API gRPC APISOAP API
Company — Startup from Ukraine · 1 - 9 employees · 2026
Listed in
Inventory Management eCommerce ERP Warehouse Management +1
Developer Tools APIs CI/CD XML Data Validation Finance +3

About CustomBooks and xmlvalid

In their own words, as submitted to SaaSHub.

CustomBooks
xmlvalid

No description of CustomBooks 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.

CustomBooks 5 features
xmlvalid 19 features
  • Comprehensive Features
    AccountingSuite offers a wide range of features including accounting, project management, time tracking, and inventory management, making it a versatile tool for businesses.
  • Cloud-Based
    Being cloud-based, AccountingSuite allows users to access their financial data from anywhere with an internet connection, providing flexibility and convenience.
  • User-Friendly Interface
    The software has an intuitive and user-friendly interface designed to make navigation and usage easy even for users with minimal accounting experience.
  • Integration Capabilities
    AccountingSuite integrates with various third-party applications such as PayPal, Shopify, and Stripe, which can streamline business processes and improve workflow efficiency.
  • Scalability
    The platform is scalable and can grow with your business, offering more advanced features as needed without requiring a switch to a different system.

Possible disadvantages

  • Cost
    The pricing for AccountingSuite can be on the higher side, particularly for small businesses or startups with limited budgets.
  • Learning Curve
    Despite its user-friendly design, some users may still experience a learning curve when getting accustomed to all its features, especially those who are not tech-savvy.
  • Limited Customization
    There are limitations in customizing the software to meet specific business needs, which can be a drawback for companies with unique accounting processes.
  • Customer Support
    Some users have reported that customer support can be slow to respond, which can be frustrating when immediate assistance is required.
  • Occasional Downtime
    As with any cloud-based software, AccountingSuite may experience occasional downtime or connectivity issues, which can disrupt business operations.
  • 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.

CustomBooks
xmlvalid

Overall verdict

  • Overall, AccountingSuite is considered a good choice for businesses looking for an all-in-one business management solution. It provides a wide range of features that can help simplify and improve financial management, though it may have a learning curve for those unfamiliar with accounting software.

Why this product is good

  • AccountingSuite is known for its cloud-based platform that integrates accounting, order management, and inventory management, making it a comprehensive solution for small to medium-sized businesses. It offers features such as multi-currency support, project and time tracking, and robust reporting tools. Users appreciate its flexibility and the ability to streamline various business processes into a single platform.

Recommended for

    Small to medium-sized businesses, e-commerce businesses, companies with inventory or order management needs, and businesses looking for an integrated accounting solution with project management capabilities.

No analysis of xmlvalid yet.

Videos

Walkthroughs and reviews on video.

CustomBooks 4 videos + Add
xmlvalid 0 videos + Add

AccountingSuite Product Tour

More videos

  • - Find An AccountingSuite Rockstar Overview
  • - Why Independent Distribution Collective Chose AccountingSuite
  • - CustomBooks™ Product Perks - Feb 2025: Cloud Banking

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

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
CustomBooks
xmlvalid
100% 100%
Inventory Management
0% 0%
0% 0%
Data Validation
100% 100%
100% 100%
eCommerce
0% 0%
0% 0%
Finance
100% 100%

Questions & Answers

As answered by people managing CustomBooks 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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