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About

InvoiceXML is an API-first platform for European e-invoice compliance. A single REST API generates, validates, and converts every major format covered by EN 16931: Factur-X, ZUGFeRD, XRechnung, UBL, and CII. Generation accepts clean JSON input and returns a compliant XML document, or a PDF/A-3 hybrid invoice with the XML embedded according to format-specific rules. Validation runs the official Schematron rulesets, and returns structured results plus user-friendly plain-language explanations alongside the raw rule output. Format conversion (POST /v1/convert/{from}/to/{format}) maps any supported format to any other through a canonical internal representation. A separate /v1/transform/ namespace handles AI-assisted extraction from legacy PDF invoices into structured XML. No-Code integrations expose the core operations to non-developers. MCP server provides the compliance toolkit for AI Agentic workflows. Always up to date with the latest standard requirements - zero maintenance.

About

Every business receives invoices. Link4 automates the process and makes it simple for small businesses. Use your current cloud accounting system to send and receive invoices in real time - without the need for email, scanning, or PDFs. This makes the process more efficient, less errors, no need for physical document storage and can increase cash flow. Try it for free. Nothing to download or install, this is a simple cloud service. Link4 also service Enterprise and Government clients in several countries - with more being added regularly. Today, invoices attached to emails are being intercepted and changed by malicious players. These e-invoicing scams are rapidly increasing. We must recognise that emails are not secure. e-invoicing protects users from Payment Redirection Scams.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and B2B SaaS teams building invoicing into their products: ERP integrators, accounting software, fintech platforms, freelancer and SMB tools, and any SaaS serving European markets where e-invoicing mandates are active or imminent (France, Germany, Belgium, Poland, with more queued behind them).

Audience

Any size business can use Link4, but we are the best solution for small businesses. So simple to use.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$9/month
Free Version Not Supported
Free Trial Supported

Pricing

$0
Plans are based on usage. Try it for free and if you see the benefits grow into larger plans.
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 4.0 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • Nothing to install. Active within a few minutes. So easy to get started, and for no cost. Everyone should at least try it as there is no down side.

Cons

  • Not all of my suppliers are on the e-invoicing network.

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

InvoiceXML
Founded: 2024
Germany
www.invoicexml.com

Company Information

Link4
Founded: 2016
Australia
link4.com.au

Alternatives

E‑Rechnungs-Studio

E‑Rechnungs-Studio

Casserus UG (haftungsbeschränkt)

Alternatives

Tungsten Invoice Network

Tungsten Invoice Network

Tungsten Automation
xSuite

xSuite

xSuite Group
xSuite

xSuite

xSuite Group
Facturwise

Facturwise

Billio Software Services s.r.o.
Luca Plus

Luca Plus

Block Ledger
PDF Xpansion SDK

PDF Xpansion SDK

soft Xpansion GmbH & Co. KG

Categories

E-Invoicing Supported

Categories

Accounts Payable Supported
E-Invoicing Supported

Accounts Payable Features

Approval Process Control Supported
Bank Reconciliation Not Supported
Cash Management Not Supported
Check Writing Not Supported
Duplicate Payment Alert Supported
Fraud Detection Not Supported
General Ledger Entry Supported
Vendor Management Supported

Accounts Receivable Features

ACH Payment Processing Not Supported
Billing & Invoicing Supported
Check Processing Not Supported
Collections Management Supported
Online Payment Processing Supported
Overpayment Processing Not Supported
Partial Payments Not Supported
Receivables Ledger Not Supported
Recurring Billing Not Supported

Billing and Invoicing Features

Billing Portal Supported
Contact Database Supported
Contingency Billing Not Supported
Customer Portal Not Supported
Customizable Invoices Not Supported
Dunning Management Supported
Hourly Billing Not Supported
Invoice History Supported
Mobile Payments Not Supported
Multi-Currency Not Supported
Online Invoicing Supported
Online Payments Supported
Payment Processing Supported
Project Billing Not Supported
Recurring/Subscription Billing Supported
Service Ticket Billing Not Supported
Tax Calculator Supported

Integrations

FreshBooks Not Supported
MYOB Not Supported
MYOB AccountRight Not Supported
Make Supported
Microsoft Power Automate Supported
MoneyWorks Not Supported
NetSuite Not Supported
Reckon One Not Supported
SAP Business One Not Supported
Saasu Not Supported
Sage 100 Not Supported
Salesforce Supported
Simpro Not Supported
Workday Extend Not Supported
Xero Not Supported
Zapier Supported
Zoho Books Not Supported
n8n Supported

Integrations

FreshBooks Supported
MYOB Supported
MYOB AccountRight Supported
Make Not Supported
Microsoft Power Automate Not Supported
MoneyWorks Supported
NetSuite Supported
Reckon One Supported
SAP Business One Supported
Saasu Supported
Sage 100 Supported
Salesforce Not Supported
Simpro Supported
Workday Extend Supported
Xero Supported
Zapier Not Supported
Zoho Books Supported
n8n Not Supported
Claim InvoiceXML and update features and information
Claim InvoiceXML and update features and information
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Claim Link4 and update features and information