Software Alternatives & Startups
Register | Login

UMLGraph VS xmlvalid

Compare UMLGraph VS xmlvalid and see what are their differences

UMLGraph

UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.

Rating
0 reviews
Promote on VibeVoted
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)
Promote on VibeVoted
Alternatives Is it good?
ASocks
Clear, Fast & Unlimited. Residential & Mobile Proxies For Best Price. 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?

Diagrams popularity
100% vs 0%
alternatives listed
99 vs 9

Base details

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

UMLGraph
xmlvalid
Website github.com xmlvalid.com
Pricing —
Freemium $29 / Monthly (Pro) Official pricing
Platforms —
Web REST API gRPC APISOAP API
Company — Startup from Ukraine · 1 - 9 employees · 2026
Listed in
Diagrams Flowcharts Wireframing Flow Charts And Diagrams +1
Developer Tools APIs CI/CD XML Data Validation Finance +3

About UMLGraph and xmlvalid

In their own words, as submitted to SaaSHub.

UMLGraph
xmlvalid

No description of UMLGraph 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.

UMLGraph 5 features
xmlvalid 19 features
  • Automated Diagrams
    UMLGraph allows for the automatic generation of UML diagrams directly from Java source code, which can save a significant amount of time and reduce the likelihood of errors introduced by manual diagram creation.
  • Integration with Javadoc
    UMLGraph integrates seamlessly with Javadoc, enabling the generation of both class documentation and UML diagrams in a unified process.
  • Text-Based Configuration
    Diagrams are configured using textual annotations in the source code, which makes version control easier and allows developers to maintain diagrams alongside the source code.
  • Extensible and Customizable
    The tool is highly customizable, allowing users to define the appearance and layout of UML diagrams to meet specific project needs.
  • Open Source
    Being an open-source tool, UMLGraph is freely available for use and modification, promoting community involvement and continual improvement.

Possible disadvantages

  • Learning Curve
    There is a learning curve associated with mastering the use of UMLGraph and its annotations, which may create an initial barrier to entry for new users.
  • Java-Centric
    UMLGraph is designed specifically for Java, which limits its utility for projects that are developed in other programming languages.
  • Limited Dynamic Diagram Support
    The tool primarily focuses on static diagrams and may have limited functionality for generating dynamic diagrams such as sequence or activity diagrams.
  • Dependence on Graphviz
    UMLGraph relies on Graphviz for rendering diagrams, which introduces an additional dependency that must be installed and maintained.
  • Manual Configuration for Complex Diagrams
    For complex diagrams, significant manual configuration may be required, which can negate some of the time-saving benefits.
  • 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.

UMLGraph
xmlvalid

Overall verdict

  • UMLGraph is generally considered a good tool for generating UML diagrams, especially for those who are comfortable with using Javadoc and prefer a textual approach to diagram specification over a graphical one. It excels in environments where automated documentation is a priority and where integration with Java projects is necessary.

Why this product is good

  • UMLGraph is a tool that allows the declarative specification and drawing of UML class and sequence diagrams. It is highly regarded for its ability to generate diagrams from Java source code using Javadoc comments, which is particularly useful for developers who want to maintain up-to-date documentation within their codebase. Its integration with Javadoc and automated nature makes it efficient for projects that require regular documentation updates.

Recommended for

  • Java developers looking for an integrated solution to generate UML diagrams from source code.
  • Teams that prefer declarative documentation methods and want to keep their diagrams in sync with their codebase.
  • Projects that require frequent updates to documentation as part of their development lifecycle.

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
UMLGraph
xmlvalid
100% 100%
Diagrams
0% 0%
0% 0%
Data Validation
100% 100%
100% 100%
Flowcharts
0% 0%
0% 0%
Finance
100% 100%

Questions & Answers

As answered by people managing UMLGraph 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

Share your experience with using UMLGraph and xmlvalid. For example, how are they different and which one is better?

Log in or Post with

Alternatives to UMLGraph and xmlvalid

When comparing UMLGraph and xmlvalid, you can also consider the following products.

Loading...