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3DSellers VS xmlvalid

Compare 3DSellers VS xmlvalid and see what are their differences

3DSellers

The AI-Powered eBay Selling Manager

Rating
5.0 · 4 reviews
Pricing
Paid Free trial $16 / Monthly (100 eBay Listings, 1 eBay Account, 1 Teammate)
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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?
Outline Analyzer
AI story outline analysis for authors, screenwriters, playwrights, and editors. Analyze your book, screenplay, or story outline for pacing, structure, character arcs, tension, plot logic, and weak spots before you draft. 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?

eCommerce Tools popularity
100% vs 0%
alternatives listed
154 vs 9

Base details

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

3DSellers
xmlvalid
Website 3dsellers.com xmlvalid.com
Pricing
Paid Free trial $16 / Monthly (100 eBay Listings, 1 eBay Account, 1 Teammate) Official pricing
Freemium $29 / Monthly (Pro) Official pricing
Platforms
eBay Windows Amazon WooCommerce BigCommerce Etsy Shopify TikTok Walmart Zapier MCP Browser +9
Web REST API gRPC APISOAP API
Company 2010 Startup from Ukraine · 1 - 9 employees · 2026
Listed in
AI Tools eCommerce Tools ERP eCommerce Platform Marketing Platform eCommerce Marketing CRM Inventory Management +5
Developer Tools APIs CI/CD XML Data Validation Finance +3

About 3DSellers and xmlvalid

In their own words, as submitted to SaaSHub.

3DSellers
xmlvalid

3Dsellers is an AI-powered eBay selling manager that combines listing, inventory, order, and customer support tools in one platform. Create, publish, and schedule eBay listings in bulk, or let AI build a complete listing from a photo, barcode, URL, or product title. Built-in AI tools optimize...

Read more about 3DSellers

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.

3DSellers 9 features
xmlvalid 19 features
  • AI Tools
    Generate and optimize eBay listings, provide AI-assisted customer support, bulk actions and catalog management with AI
  • Inventory Management
    Sync stock and prices across eBay and other sales channels, update inventory in bulk with CSV, and manage stock across multiple warehouses.
  • Helpdesk Suite
    Manage messages from all your sales channels in one inbox, with full order details in every ticket, internal notes, team mentions, and AI-generated replies and summaries.
  • Marketing Automation
    Automatically send offers to watchers, cross-promotion and thank-you messages to buyers, and feedback reminders to keep buyers coming back.
  • Feedback
    Automatically send feedback reminders through eBay's messaging system, send a second reminder if needed, leave feedback for buyers, and get email alerts when you receive new feedback.
  • Offers
    Send offers in bulk to watchers and to buyers with items in their cart. Set custom rules to automatically send, accept, and counter offers across multiple eBay accounts.
  • Listing Templates
    Design professional eBay listing templates with a drag-and-drop editor, or use AI to copy the design of any eBay listing from its URL. Save and reuse templates across all your listings.
  • Listings Manager
    Create, edit, publish, and schedule listings in bulk. Manage drafts, business policies, and relisting, and copy listings between eBay accounts.
  • Automated Messaging
    Automatically send messages to eBay, Amazon, Shopify, and TikTok Shop buyers after a purchase, after shipping, or when they leave feedback.
  • 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

Videos

Walkthroughs and reviews on video.

3DSellers 7 videos + Add
xmlvalid 0 videos + Add

Turn Any Barcode Into a Ready-to-Sell eBay Listing (Fast)

More videos

  • - Turn Any URL Into a Ready to Sell eBay Listing with AI
  • - I Stopped to Type eBay Listings — This AI Does It in 60 Seconds
  • - Turn Any Photo Into a Full eBay Listing in Seconds with AI
  • - How Prince Patel, a million-dollar eBay seller is using 3Dsellers to grow his eBay business!
  • - Listing Designer Tutorial | 3Dsellers
  • - How to Import a CSV of eBay Listings and Publish to eBay

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
3DSellers
xmlvalid
100% 100%
eCommerce Tools
0% 0%
0% 0%
Data Validation
100% 100%
100% 100%
Ebaytool
0% 0%
0% 0%
Finance
100% 100%

Questions & Answers

As answered by people managing 3DSellers 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.

3DSellers 5.0 · 4 reviews
xmlvalid no reviews yet

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