Tools
Small tools often solve surprisingly large problems.
Flowtig Tools are lightweight utilities designed to perform one specific task exceptionally well. Unlike full applications, they focus on solving individual problems quickly, without requiring complex configuration or workflows.
Whether you're validating electronic invoices, analysing banking information or calculating working days, Flowtig Tools help you obtain reliable results within seconds.

Purpose of Tools
Every Flowtig Tool has one clear purpose.
Rather than replacing full business applications, tools complement the Flowtig platform by providing focused functionality that can be used independently whenever needed.
Typical examples include:
- Validating business documents
- Validating structured data
- Performing calculations
- Analysing technical information
- Supporting business workflows
Simple by design
Every tool is designed to solve a single problem with as little complexity as possible.
Current Tools
Invoice Inspector
Core Question
Is this electronic invoice standards compliant?
Invoice Inspector validates electronic invoices according to EN16931 and XRechnung.
It supports XML invoices as well as PDF invoices containing embedded XML and provides a detailed validation report including validation steps, detected issues and document metadata.
Typical use cases include software development, ERP integrations, accounting and quality assurance.
Daywalker
Core Question
How is this period of time composed?
Daywalker analyses any date range and calculates:
- Working days
- Weekends
- Public holidays
- Regional holiday differences
Typical use cases include project planning, vacation calculations and delivery estimates.
IBAN Checker
Core Question
Is this bank account information correct?
IBAN Checker validates and analyses banking information, including:
- IBAN validation
- BIC validation
- IBAN generation
- Bank identification
- Account conversion (Germany)
It is commonly used in accounting, software development and financial administration.
Why Tools?
Some tasks simply don't require an entire application.
Instead of navigating through complex workflows, Flowtig Tools provide immediate answers to common business and technical questions.
They are designed to be:
- Fast
- Focused
- Reliable
- Easy to use
Built on the Same Foundation
Although tools are intentionally lightweight, they follow the same quality standards as every Flowtig application.
They are:
- Continuously maintained
- Fully multilingual
- Consistently designed
- Built for long-term reliability
Many tools are built on the same components and validation engines used throughout the Flowtig platform, making them equally suitable for everyday work, software development and professional business environments.
As the Flowtig platform grows, additional tools will be introduced whenever they help simplify everyday work or eliminate repetitive tasks.
Explore the Tools
Use the navigation on the left to learn more about each available tool, including supported features, practical use cases and frequently asked questions.