ERP for SMEs · Open Source

The path forward for
modern businesses

Full business management — finance, purchasing, operations, HR — built for real-time collaboration, multi-company from day one, with no licence fees.

Open Leiðir Learn more

The Problem

Running a business is complicated.
ERP software shouldn't be.

Designed for

The accountant and the executive

Both served, neither in the other's way.

The Accountant

  • Journal entries, cost centres, VAT, reconciliation, audit trails
  • Precision, process compliance, full control over the ledger
  • Invoices, contracts, and documents connected to their accounting entries — not stored in separate systems

"Accounting records and documents live side by side"

The Executive

  • Cash position, budget vs. actual, outstanding payables, revenue trends
  • Clarity and speed — no accounting mechanics required
  • Budget and forecast constantly aligned with actuals

"You manage the future, not the past"

The same underlying data powers both views. Each user gets the right lens on the business — and one does not get in the way of the other.

Today

Core modules — live and working

GL

Accounting

General ledger, journal entries, cost centres, foreign currencies, entry approval workflow

P2P

Purchasing & Invoice Capture

Suppliers email invoices → automatic capture, extraction, and routing

FI

Financial Reporting

Pivot-table based financial reports and income statement

BG

Budgeting

Budget catalogue, budget vs. actual tracking, and forecasting

BK

Banking

Bank feeds, reconciliation, payment runs (PAIN.001), payment batches

TX

Tax / VAT

VAT returns, ELSTER XML generation

FA

Fixed Assets

Asset register, depreciation schedules

EI

E-Invoicing

ZUGFeRD EN 16931 PDF/A-3b with embedded CII XML, digital signing

SD

Sales

Sales orders, shipments, fulfillment lifecycle

IM

Inventory

Products, warehouses, stock movements, stock takes, cost layers

HR

HR & Payroll

Employee records, positions, leave, payroll runs, Lohnsteuer

MC

Multi-Company

Switch between companies in one session; fully isolated data per entity

AC

Access Control

Role-based permissions per module with user management

Roadmap

What's next

VAT OSS

One Stop Shop for cross-border compliance

Revenue Models

Subscription and contract revenue

Consolidation

Group reporting across entities

Layered Ledger

Account for timing differences between GAAPs or annual closing

AI Expansion

Deeper LLM/SLM integration across workflows

Pilot Programme

Onboard pilot companies and gather real-world feedback

Open Source

Formalise the release and contribution model

Leiðir — Old Norse for "the path." Guided by the vegvisir, the Norse wayfinding compass. The name reflects the product's purpose: giving businesses clear direction through complex data. Project started March 2026.

AI Integration

Core processes.
Current with the times.

A modern ERP should evolve with the tools available. Leiðir has an integrated LLM engine — not an add-on, not a roadmap item.

Adopt new technology where it genuinely improves a core process. Ignore it where it does not.

Comparison

Why Leiðir?

Legacy ERP Simple Tools Leiðir
Cost High licence fees Low Open / self-hosted
Complexity Very high Low Right-sized
Multi-company Expensive add-on Usually not supported Built in
Real-time UI Rarely No Yes
Invoice automation Manual or expensive No Yes
European compliance Varies Limited Designed for it
Extensible / open No No Yes
Integrated AI Rare / expensive No Yes — self-hosted

Technology

Built for reliability and speed

Elixir Fault-tolerant, high-concurrency — the runtime powering WhatsApp and Discord at scale
Phoenix LiveView Real-time reactive UI with no JavaScript framework complexity
PostgreSQL Battle-tested, open-source relational database
AWS Document storage and inbound email processing

Self-hostable: runs on a standard Linux server, no proprietary infrastructure lock-in.

Ready to see it in action?

Demo available with sample data. Open repository. No licence fees.

Open Leiðir