What Beleggo offers

One local engine to validate, fix and create every EU e-invoice

VALIDATE · 5 LAYERS

Know in seconds

XSD → EN 16931 → PDF/A-3 container → page↔XML → B2G preflight. 1,818 checks, every error mapped to the exact field, in plain language.

FIX

Invalid → valid

One-click safe repairs, a guided editor and a normalize tier — no developer, and no monetary value ever changed.

CREATE & CONVERT

Make a valid one

A simple form → a valid XRechnung or ZUGFeRD/Factur-X PDF. UBL ↔ CII ↔ ZUGFeRD, re-checked after every conversion.

8 FORMATS · 1 ENGINE

All of Europe

XRechnung · Peppol BIS 3 · NL / RO / HR / PT CIUS · EN 16931 core. Invoices generate in DE · EN · FR.

PRIVATE BY DESIGN

No upload, ever

Runs in your browser, desktop or terminal. No account, no cloud, no tracking — GoBD-friendly by architecture.

PROVEN

Checked vs the officials

KoSIT, Service-BW & the EU ITB — 722 samples cross-checked, no open disagreements. beleggo.de/#conformance

How to use it

Drop a file in → get a verdict. Then fix it, or build one from scratch.

🌐 WEB STUDIO

Nothing to install

Drag an XRechnung, ZUGFeRD or Peppol file into the browser → an instant verdict. Offline PWA, no account.

🖥️ DESKTOP APP

mac · Windows · Linux

Batch-validate a whole folder, watch an inbox, native drag-&-drop. Pro

⌨️ COMMAND LINE

In your CI

beleggo validate / fix / generate — one binary, no JVM, scriptable over a whole pipeline.

🤖 AI AGENT · MCP

Let the AI check it

A local MCP server so Claude or any AI validates & fixes invoices — without uploading a single byte.

🔎 CLICK THE ERROR

See the field

Every issue points at its box in the readable invoice — BT-10 missing lights up the field, and links to the rule library.

🛠️ ONE-CLICK FIX

Or a guided editor

Every issue is classified auto input manual — you always know the next step.

Which edition fits

One engine, four shapes.

Entry
Web studio
Validate & create in the browser, plus the CLI and MCP server. Nothing to install, no account.
Single seat
Desktop
Batch-validate and watch folders · PDF branding with logo and payment QR · saved invoices and templates.
Multi-seat
Kanzlei & data kit
Tax practices, QA & data-kit teams — batch a client folder, letterhead reports, several seats.
Licence
OEM / white-label
Embed the engine or ship the whole studio under your own brand — app, reports and data kit rebranded.

The editions differ in reach, not in the verdict: everything checks against the same pinned rulesets. Twelve months of rule updates are included; after that only the refresh pauses. Shape and terms: [email protected]