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Hacker News VS xmlvalid

Compare Hacker News VS xmlvalid and see what are their differences

Hacker News

Hacker News is a social news website focusing on computer science and entrepreneurship. It is run by Paul Graham's investment fund and startup incubator, Y Combinator.

Rating
0 reviews
Pricing
Open source
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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)
Promote on VibeVoted
Alternatives Is it good?
GilFlow
GilFlow is smart cash flow management for individuals and teams — track income, expenses, subscriptions, and cash flow across every workspace, on the web and on Android. 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?

Based on our record, Hacker News seems to be more popular. It has been mentioned 731 times since March 2021.

social mentions
731 vs 0
Social Networks popularity
100% vs 0%
alternatives listed
240+ vs 9

Base details

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

Hacker News
xmlvalid
Website news.ycombinator.com xmlvalid.com
Pricing
Open source
Freemium $29 / Monthly (Pro) Official pricing
Platforms —
Web REST API gRPC APISOAP API
Company — Startup from Ukraine · 1 - 9 employees · 2026
Listed in
Social Networks Social News Startups Entrepreneurship Startup Community Community +3
Developer Tools APIs CI/CD XML Data Validation Finance +3

About Hacker News and xmlvalid

In their own words, as submitted to SaaSHub.

Hacker News
xmlvalid

No description of Hacker News 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.

Hacker News 5 features
xmlvalid 19 features
  • Quality Content
    Hacker News focuses on high-quality, tech-centric content which is often insightful and valuable for those in the tech industry.
  • Community
    The community consists largely of professionals and enthusiasts in tech, providing a knowledgeable and skilled user base for discussions.
  • Upvote System
    The upvote system helps in promoting the most relevant and useful posts, ensuring users see content that is often vetted by the community.
  • Minimalist Design
    The simple, text-based design minimizes distractions and focuses on content and discussions without unnecessary clutter.
  • Diverse Topics
    While mainly focused on technology, Hacker News also covers a variety of subjects including entrepreneurship, science, and more.

Possible disadvantages

  • Echo Chamber Effect
    Given its focused and like-minded community, there is a risk of homogeneous opinions and lack of diverse viewpoints.
  • Moderation Issues
    The manual moderation can sometimes be inconsistent, leading to frustrations around which posts or comments get removed or promoted.
  • Signal-to-Noise Ratio
    Despite the upvote system, some low-quality or irrelevant content can still surface, diluting the overall information quality.
  • Niche Audience
    Its strong focus on tech topics can alienate those who are not as tech-savvy or interested, limiting broader appeal.
  • Limited Features
    The platform offers very basic functionality compared to other modern forums, which might deter users who prefer more advanced features.
  • 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.

Hacker News
xmlvalid

Overall verdict

  • Good

Why this product is good

  • Hacker News is a popular platform for tech enthusiasts and professionals to discuss and share information on a wide variety of topics, mainly related to technology, startups, and computer science. It's known for its intelligent community and high-quality discussions, which can provide valuable insights and knowledge.

Recommended for

  • Tech enthusiasts
  • Startup founders
  • Developers
  • Entrepreneurs
  • Investors
  • Anyone interested in technology and innovation

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
Hacker News
xmlvalid
100% 100%
Social Networks
0% 0%
0% 0%
Data Validation
100% 100%
100% 100%
Social News
0% 0%
0% 0%
Finance
100% 100%

Questions & Answers

As answered by people managing Hacker News 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.

Hacker News no reviews yet
xmlvalid no reviews yet

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

Social recommendations and mentions

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

Hacker News 731 mentions
xmlvalid 0 mentions
  • Show HN: Fastbrowse, Browser agent that picks clicks with a System One model
    Hi HN, I'm Furqan founder of Nebula. We've spent a lot of time building, using and breaking browser agents. The main issues we ran into were costs and speed. So we built our own and open sourced it. It's pretty simple, give it a task and... - Source: Hacker News / 5 days ago
  • Your free AI agent keeps getting IP-blocked: route Crawl4AI and browser-use through a free proxy
    # crawl_tool.py Import asyncio Import os From crawl4ai import AsyncWebCrawler, BrowserConfig, CacheMode, CrawlerRunConfig, ProxyConfig SOLPROXY = ProxyConfig( server="http://ws.solproxy.net:8501", username="free", ... - Source: dev.to / 6 days ago
  • Eight CA private keys were integers under 256. I recovered all eight in 11 milliseconds.
    Sources: the disclosure site and its proof/chains data, Mozilla incident bug 2083449 (eMudhra's account of the ceremony flaw and the 2025 CRL incident), and the HN discussion (563 points today). All verifications, key recoveries, and... - Source: dev.to / 15 days ago

View more

Tracking xmlvalid since Oct 2026.

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