Create bids for GAEB tenders
Process GAEB at lightning speed: with GAEB-Online 2025 you create bids for electronic data exchange.
GAEB-Online 2025
Your Excel speaks GAEB now.
GAEB-Online 2025 bridges both worlds: open the tender, calculate in Excel, send the bid back as a GAEB file. Trusted by 5,000+ construction companies – try it for free.
5,000+ customers
20 years of GAEB experience
Windows 11 optimised
Open GAEB tenders
Create GAEB bids
Measurements
EFB forms
XRechnung
GAEB XML
GAEB 2000
GAEB 90
DA83/84/86
DA11
X31
X89
Excel
Word
REB 23.003
Products
GAEB-Online 2025 and extensions
Choose the right product for your requirements around GAEB, Excel and XRechnung.
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GAEB-Online 2025
Bid-preparation software with Excel integration for GAEB tenders, plus conversion to and from Excel.
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Excel EFB Calculation
Excel extension for filling out EFB forms 221 and 223 using an easy-to-build unit-price calculation.
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Excel EFB Reverse Calculation
Excel extension for filling out EFB forms 221 and 223 by retrospectively splitting unit prices into cost categories.
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Excel Measurement XRechnung
Excel extension for large measurement projects, export DA11, GAEB X31, GAEB X89, XRechnung 3.0.
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Excel Measurement
Excel extension for small measurement projects, export DA11, GAEB X31, GAEB X89.
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GAEB-X31 Generator
Excel extension that creates a GAEB X31 measurement file directly from a GAEB bill of quantities.
Finally — work with Excel and Word too
Do you want to process a GAEB file — for example an X83 bid request — using your familiar Office tools such as Microsoft Excel, Word, OpenOffice or LibreOffice? Do you want to calculate bids directly in Excel and submit them electronically as a DA84? That is exactly what GAEB-Online 2025 makes possible.
With GAEB-Online 2025 you run your bid calculations in the Office world. Fast and easy! The software is compatible with every common Office suite. It processes GAEB 90, GAEB 2000 and GAEB XML version 3.3 (2021-05 edition).
And if you only want a quick look at a GAEB file, you can use GAEB-Online 2025 as a fast and simple GAEB viewer.
Conversion made easy
Enjoy the versatility of GAEB data exchange — with astonishingly simple handling. Convert Excel to GAEB. Or GAEB to Excel. Turn bills of quantities from Excel into any common GAEB format — and back again.
GAEB-Online 2025 also works as a handy file converter and GAEB viewer for everyday use. A few clicks are enough to rewrite a GAEB file into a different format, or save it as PDF, RTF or DOCX for Word.
Easily modify GAEB bills of quantities
GAEB-Online 2025 is the ideal solution for editing quantities, units and texts in GAEB files. One click opens a GAEB file and switches into edit mode — right inside the bill of quantities.
With the LV filter you filter the BoQ by various criteria in seconds. Conditional formatting highlights items in colour, and the built-in RTF editor lets you design the printed output of a GAEB tender exactly the way you want.
Digitally sign your bids
GAEB-Online 2025 offers an ideal way to create bids quickly and in a legally binding form. Our solution lets you define your digital signatures once and reuse them at any time.
GAEB-Online 2025 is the perfect solution for anyone who wants to create bids quickly and conveniently as a PDF too. With the Bid Assistant you can produce a bid as PDF or as GAEB DA84 and share it via email or Microsoft OneDrive link.
Measurement as DA11 or GAEB X31
Create construction measurements with free formulas per REB 23.003 in Excel — using the Excel Measurement extension for GAEB-Online 2025. Export electronic measurements as DA11 (1979 or 1990 edition) or as GAEB X31.
The software supports length, area and volume calculations with a flexible formula language. Perfect for settlements in the construction trades and construction industry.
E-invoices as GAEB X89 and XRechnung
With the Excel Measurement XRechnung extension for GAEB-Online 2025 you can easily create e-invoices in GAEB X89 or XRechnung 3.0 format and export them directly from Microsoft Excel.
The invoicing process is fully digital: from the measurement through the calculation to the format-compliant e-invoice to public contracting authorities — all from your familiar Excel environment.
Features at a glance
This is GAEB-Online 2025
All key features at a glance — from GAEB conversion to XRechnung.
Export to Excel with one click
Capture prices and bids quickly and conveniently by transferring GAEB tenders to Excel with one click.
Email or cloud
A bid can be created with the Bid Assistant both as PDF and as GAEB DA84, and shared via email or Microsoft OneDrive link.
Convert Excel to GAEB
Convert BoQs from architects or product descriptions from an Excel spreadsheet into any common GAEB format.
Modify GAEB BoQs
Change quantities, units, short and long texts in a GAEB file directly in edit mode.
Quantities and measurements
Use optional extensions to create measurements directly in Excel — per REB 23.003 as DA11 or GAEB X31.
E-invoices
Use optional extensions to create e-invoices directly in Excel and send them electronically to your client.
Split the BoQ
A GAEB BoQ can be split into several Excel sheets so that different areas can be calculated independently. Saves time and effort.
BoQ statistics
When a GAEB tender is opened, it is analysed in seconds and the item types are shown graphically in the BoQ statistics.
Calculate in MS-Excel
Run your GAEB calculation directly in MS-Excel®. The calculation logic — formulas and total rows — is transferred along with the data.
Bid as DA84
Besides MS-Word® and MS-Excel® you can also enter bid prices directly and generate your bid as D84.
EFB forms 221 and 223
Optionally GAEB-Online 2025 also helps you fill out EFB form 221 and EFB form 223.
DA11, GAEB X31
Create electronic measurements as DA11 or as GAEB X31 files.
GAEB X89 and XRechnung 3.0
Create e-invoices as GAEB X89 or XRechnung 3.0 directly from Microsoft Excel.
BoQ filter
The BoQ filter lets you filter and display a BoQ by various criteria in seconds.
Conditional formatting
When calculating GAEB BoQs, conditional formatting lets you mark the BoQ or individual items with colours or symbols.
Edit in print preview
With the integrated RTF editor you shape the printed output of a GAEB tender exactly the way you want.
GAEB 90, GAEB 2000 and GAEB XML
GAEB-Online 2025 processes the GAEB formats from 1985, 1990, GAEB 2000 and GAEB XML 3.3 (2021-05).
Terminal server
A dedicated terminal server version is also available as GAEB-Online 2025 TS for Microsoft Windows Server 2019 or higher.
Command line
With GAEB-Online 2025, GAEB files can be validated and converted to other GAEB formats via batch jobs.
Windows 11 & 64-bit
Optimised for Windows 11 with its typical rounded corners. Also available as a native 64-bit version for more memory.
Background
GAEB enables barrier-free data exchange in the construction industry
Fast and uniform data exchange in the construction industry — that was the goal when the Joint Committee for Electronics in Construction (GAEB) was founded in the mid-1980s. Ever since, GAEB has been developing standards for the digital exchange between architects, planners, contracting authorities and tradespeople.
The GAEB format is an electronic data format developed specifically for the exchange of bid, order and invoice data between construction-trade companies and their clients.
What is GAEB-Online 2025?
GAEB-Online 2025 is a simple, intuitive and affordable solution for tradespeople and companies in the construction sector. It is the best choice for anyone who wants to create electronic bids quickly, convert tenders and process measurements in the familiar Office world — without hassle.
A Windows solution
GAEB-Online 2025 is designed for Windows operating systems and works smoothly on Windows 11. For hints about running GAEB-Online 2025 on macOS, please see our FAQ.
Why the GAEB-Online 2025 software?
Our software was originally developed to open GAEB files and create GAEB bids. For example: a user opens a GAEB BoQ from an architect and creates a bid from it — quickly and without complicated intermediate steps.
We recognised early on that many users want to use their Office tools — such as Microsoft Excel, OpenOffice or LibreOffice — to calculate their bids. That is why we combine the rules of the GAEB standard with the possibilities of common Office suites.
An example: architects and planners convert GAEB files from Excel sheets, i.e. they generate new GAEB bills of quantities from Excel in various GAEB formats. The software enables a seamless switch between GAEB and Office — without breaks in the workflow.
Bottom line: the software is a tool to implement the requirements for the exchange of construction information and the settlement of construction services quickly and reliably. With GAEB and our GAEB-Online 2025 solution you are on the safe side.
If you are looking for software that helps you create GAEB bids, then you are in the right place. We have more than 5,000 customers and have been in this business for 20 years.
Excel export: the software transfers the calculation logic too
Transferring a GAEB file into MS-Excel or OpenOffice also transfers the calculation logic into the spreadsheet — formulas and total rows included. You can continue your calculation immediately, with no detours.
Use Excel templates for custom calculations
Use Excel templates to calculate perfectly with GAEB-Online 2025. Thanks to placeholders such as #Kurztext# or #Langtext# you can easily adapt a template to your needs.
Individual cost items (EKT) with Excel
Use GAEB-Online 2025 and a smart Excel template to determine the individual cost items (EKT) and submit the bid digitally as a GAEB DA84.
Mobile working with GAEB-Online 2025 USB
Want to work on several computers or on the road with a notebook? With GAEB-Online 2025 USB we offer a portable version on a USB stick — ready to use from any Windows PC.
Also for OpenOffice and LibreOffice
Import calculated prices from Excel, OpenOffice or LibreOffice into a GAEB bill of quantities. Handle all your bid calculations in OpenOffice or LibreOffice — quickly and easily.
GAEB software for terminal servers
GAEB-Online 2025 is also available for terminal servers. The solution consists of GAEB-Online 2025 TS and a licence-management tool. Both components can be installed in the terminal-server environment.
EFB forms 221 / 223 for public tenders
Need to fill out EFB form 221 or 223 for a public procurement procedure? The Excel EFB Calculation extension for GAEB-Online 2025 helps you fill them out — based on your unit-price calculation from Excel.
Unit-price calculation directly from BoQs in Excel
On request, GAEB-Online 2025 creates a unit-price calculation based on Excel or OpenOffice. You are not tied to a specific software vendor, because you adapt the calculation and the maths directly in Excel, exactly to your needs.
Easy to use
Operating GAEB-Online 2025 is child’s play! A single click imports the GAEB file directly into Excel — including all formulas and total rows. An import wizard and integrated help guide you step by step.
Practical video training
Our video training for GAEB-Online 2025 introduces you to the software conveniently over the internet. In individual, logically structured video sequences you learn key tips and tricks right on screen.
Fundamentals
Convert, view, edit GAEB — or simply use it as a GAEB viewer
Whether you use GAEB-Online 2025 as a converter, a viewer or for the calculation and submission of your bids: our GAEB software offers a fast and straightforward solution.
GAEB 90, GAEB 2000 and GAEB XML 3.3
GAEB-Online 2025 speaks the electronic GAEB formats GAEB 90, GAEB 2000 and GAEB XML 3.3 (2021-05 edition). With GAEB-DA-XML 3.3 you are bang up to date when exchanging GAEB data.
What are the differences between GAEB files?
Architects, tradespeople and construction firms often ask about the content differences between the individual GAEB files — such as DA82 vs. DA83 or DA81 vs. DA83. You will find an overview on our page „What is a GAEB file?“.
AI assistance
Meet Nicole — your smart GAEB AI
As a digital expert for GAEB data exchange, Nicole supports you intelligently, quickly and reliably when working with GAEB-Online 2025. Thanks to her deep understanding of every relevant standard she is your knowledgeable contact — around the clock.
Nicole answers questions about GAEB formats, EFB forms, XRechnung and more.
Go to the GAEB AIN
Nicole · GAEB AI
„How do I export a GAEB BoQ as a DA84 bid with a digital signature?“
In GAEB-Online 2025 you open the BoQ, enter the prices, activate your signature under Settings → Signatures, and in the Bid Assistant choose Create DA84. The bid can then be shared by email or OneDrive straight away.