Phive

Judgement

What it is

Building block

What it does

A Java engine for validating business documents such as UBL and Peppol e-invoices against XML schemas and Schematron rules.

Adopt it when

You build Peppol or e-invoicing software in Java and need standard document validation.

Watch out

Essentially a one-person project, though widely used in the Peppol world.

Ready for

Production-ready

Runs as

Library

Built with

Java

How established

Established: started 12 years ago, latest release phive-parent-pom-12.2.0.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Phive → JDK → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

Open-source alternatives to Phive

1. 1
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3. 3
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8. 8
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Commercial e-invoicing libraries for ZUGFeRD, Factur-X, XRechnung and Peppol

1. 1
   Pagero Pagero

   Discover e-invoicing, tax, legal and regulatory compliance solutions from Thomson Reuters, helping organisations navigate complexity with confidence.

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2. 2
   Avalara E-Invoicing Avalara

   Comply with international real-time reporting and e‑invoicing mandates. Automate financial operations with Avalara E‑Invoicing and Live Reporting.

   Integration Production-ready A multinational must comply with e-invoicing mandates in several countries and already uses Avalara for tax.

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