Create bids for GAEB tenders
Process GAEB in a flash: with GAEB-Online 2025 you generate bids for electronic data exchange.
GAEB-Online 2025
Your Excel speaks GAEB now.
Your Excel speaks GAEB now.
And your GAEB gets AI.
GAEB-Online 2025 bridges both worlds: open the tender, calculate directly or in Excel, return the bid as a GAEB file. Optionally with AI price suggestions from your own historic bids. Trusted by over 5,000 construction companies — try it for free.
5,000+ customers
20 years of GAEB experience
Windows 11 optimised
AI price suggestions
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 needs 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 generates a GAEB X31 file from your GAEB BoQ.
New · AI extension
AI-based pricing – from your own bids
The AI PriceNavigator learns from your previously submitted GAEB bids and automatically suggests matching unit prices for new Bills of Quantities – saving 30 to 60 minutes per BoQ. The AI runs 100% on your PC (no cloud, no data transfer), is GDPR-compliant, and seamlessly integrated into GAEB-Online 2025.
Start your 7-day free trial – no payment details, no automatic renewal. If you choose not to subscribe, the trial simply expires.
At last – edit with Excel and Word
Do you want to edit a GAEB file, such as a request for bids as X83, using your familiar Office tools – Microsoft Excel, Word, OpenOffice or LibreOffice? Do you want to calculate bids directly in Excel and submit them electronically as DA84? That is exactly what GAEB-Online 2025 makes possible.
With GAEB-Online 2025 you carry out your bid calculations in the Office world. Fast and simple! The software is compatible with every common Office suite. It processes GAEB 90, GAEB 2000 and GAEB XML version 3.3 (edition 2021-05).
And if you just want to view a GAEB file, GAEB-Online 2025 also works as a quick and easy GAEB viewer.
Conversion made easy
Enjoy the versatility of GAEB data exchange – with strikingly uncomplicated handling. Convert Excel to GAEB. Or GAEB to Excel. Transform BoQs from Excel into any common GAEB format – and back again.
In daily practice GAEB-Online 2025 is also a handy file converter and GAEB viewer. With just a few clicks you re-save a GAEB file in another format or as PDF, RTF or DOCX for Word.
Sign bids digitally
GAEB-Online 2025 offers an ideal way to create bids quickly and with legal certainty. Our solution lets you define your digital signatures once and keep them available at any time.
GAEB-Online 2025 is the perfect solution for anyone who also wants to create bids quickly as PDF files. With the bid assistant you can easily create a bid – as PDF or GAEB DA84 – and share it via email or a Microsoft OneDrive link.
Measurement as DA11 or GAEB X31
Create construction measurements in Excel with free formulas to REB 23.003 – using the Excel Measurement extension for GAEB-Online 2025. Export electronic measurements as DA11 (1979 and 1990 editions) or as GAEB X31.
The software supports length, area and volume calculations with a flexible formula language. Perfect for billing in construction trade and 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 measurement and calculation through to format-compliant e-invoices for public-sector clients – all from a familiar Excel environment.
Feature overview
What GAEB-Online 2025 can do
All key functions at a glance – from GAEB conversion to XRechnung.
Export to Excel with a click
Enter prices and bids quickly and comfortably by transferring GAEB tenders to Excel with a single click.
Email or cloud
With the bid assistant a bid can be created as PDF or GAEB DA84 and shared via email or a Microsoft OneDrive link.
Convert Excel to GAEB
Convert BoQs from architects or product descriptions from an Excel spreadsheet into a GAEB format.
Modify GAEB BoQs
Change quantities, units and short/long texts of a GAEB file directly in edit mode.
Quantities and measurements
Create measurements directly in Excel using extensions – to REB 23.003 as DA11 or GAEB X31.
E-invoices
Create e-invoices directly in Excel using extensions and send them electronically to your client.
Split BoQ
A GAEB BoQ can be split into multiple Excel sheets so that different sections can be calculated separately – saving time and effort.
BoQ statistics
When a GAEB tender is opened it is analysed in seconds and the item types are displayed graphically in the BoQ statistics.
Calculate in MS Excel
Carry out your GAEB calculation directly in MS-Excel®. The calculation logic – formulas and sum rows – is transferred as well.
Bid as DA84
In addition to MS-Word® and MS-Excel® you can also enter your bid prices directly and generate your bid as D84.
EFB forms 221 and 223
GAEB-Online 2025 optionally helps you fill out EFB forms 221 and 223.
DA11, GAEB X31
Create electronic measurements as DA11 or 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 in seconds by various criteria.
Conditional formatting
When calculating GAEB BoQs, conditional formatting lets you highlight the BoQ or items with colour or symbols.
Edit in print preview
The integrated RTF BoQ editor lets you freely design the printed output of a GAEB tender to your wishes.
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
GAEB-Online 2025 is also available as a dedicated terminal-server version (GAEB-Online 2025 TS) for Microsoft Windows Server 2019 or newer.
Command line
With GAEB-Online 2025 GAEB files can be validated and converted to another GAEB format as a batch job.
Windows 11 & 64-bit
Optimised for Windows 11 with the typical rounded corners. Also available as a pure 64-bit version for more memory.
Testimonials
What our users say
A selection of feedback from active users.
I have been using your software since 2008 and work intensively with Excel. With the current version I exported an electrical BoQ with 8,430 items to Excel in 3 seconds – about 50 times faster than before. Excellent!
Why complicated, when GAEB-Online 2025 makes it simple?
Great. Finally a solution that works with OpenOffice Calc.
Latest news
What’s new at gaeb-online
Recent press releases and updates.
2026-05-26
GAEB-Online 2025: AI makes price suggestions for bids
Pressebox · GAEB AI PriceNavigator
2026-05-26GAEB AI: calculation in construction, but please without data loss
OpenPR · GDPR-compliant AI for the construction industry
2026-06-04GAEB-Online 2025 — version 12.0.0.55
Release notes · new EV code-signing certificate
From our blog
Latest posts
Practical tips, technical articles and updates around GAEB-Online 2025 (German blog).
Frequently asked questions
Answers about GAEB-Online 2025
The most important questions – answered concisely.
What is a GAEB file?
A GAEB file is a standardised exchange format for construction Bills of Quantities (BoQ) between clients, architects, planners and trade businesses. It contains items, quantities, texts and (depending on the phase) prices of a construction project. GAEB stands for „Gemeinsamer Ausschuss Elektronik im Bauwesen” (Joint Committee for Electronics in Construction) and has been the standard for digital data exchange in the German construction industry since the 1980s.
How do I open a GAEB file in Excel?
With GAEB-Online 2025 you can open GAEB files directly in Microsoft Excel. The software automatically converts GAEB DA XML 3.3, GAEB 2000 and GAEB 90 into an Excel spreadsheet. You calculate your bid in the familiar Excel environment and return it as a GAEB DA84 — just one click.
Which GAEB formats does GAEB-Online 2025 support?
GAEB-Online 2025 supports all common formats: GAEB DA XML 3.3 (edition 2021-05), GAEB 2000 and GAEB 90. This specifically includes X83, X84, X86, X89, X89B, X31, P83, P84, D83, D84, DA11 and more — for both import and export.
What does GAEB-Online 2025 cost?
GAEB-Online 2025 is a one-time purchase without subscription: the single-seat licence costs €120 net, the USB-stick version €180 net. Terminal-server licences (TS-3/5/10) start at €470 net. All updates within the 2025 generation are included. The GAEB AI PriceNavigator is offered separately as a 12-month subscription. Full price overview
Is there a free trial?
Yes. You can test GAEB-Online 2025 as a single-seat version free of charge and without obligation. The trial version transparently indicates any limitations at startup. The GAEB AI PriceNavigator can be tested free for 7 days — without credit card details and without automatic renewal into a subscription.
Does GAEB-Online work on macOS?
GAEB-Online 2025 is a native Windows application. On a Mac you can use it via a Windows terminal server using RDP (Microsoft Remote Desktop Client) or via virtualisation (Parallels Desktop, VMware Fusion). It does not run natively on macOS. More about GAEB on macOS
Do I need GAEB-Online as a subcontractor?
Yes, if you submit bids based on GAEB tenders and need to return your prices as GAEB DA84. Many public and commercial clients require bids exclusively in GAEB format. GAEB-Online 2025 helps you meet that requirement with minimal effort in Excel.
Background
GAEB enables seamless data exchange in the construction industry
To enable fast and uniform data exchange in the construction industry: with that aim, the Joint Committee for Electronics in Construction (GAEB) was founded in the mid-1980s. GAEB has been developing standards for digital exchange between architects, planners, clients and tradespeople ever since.
The GAEB format is an electronic data format developed specifically for the exchange of bid, order and invoice data between construction-trade businesses and clients.
What is GAEB-Online 2025?
GAEB-Online 2025 is a simple, intuitive and cost-effective solution for tradespeople and companies in the construction sector. It is the best choice for anyone who wants to create electronic bids quickly and easily, convert tenders, and handle measurements in the familiar Office world.
Windows solution
GAEB-Online 2025 is designed for Windows operating systems, including Windows 11. For notes about using GAEB-Online 2025 on macOS, see our FAQ.
Why GAEB-Online 2025?
Our software was originally developed to open GAEB files and create GAEB bids. For example: a user opens an architect’s GAEB BoQ and turns it into a bid – quickly, with no complicated intermediate steps.
We recognised early on that many users want to leverage their Office tools to calculate bids – Microsoft Excel, OpenOffice or LibreOffice. We therefore combine the rules of the GAEB standard with the capabilities of common Office suites.
One example: architects and planners convert GAEB files from Excel spreadsheets, i.e. generate new GAEB BoQs from Excel in various GAEB formats. Our software enables seamless switching between GAEB and Office – with no breaks in the workflow.
In short: the software is a tool to meet the requirements for exchanging construction information and billing construction services quickly and securely. With GAEB and our solution GAEB-Online 2025 you are on the safe side.
If you are looking for software that helps you create GAEB bids, you are exactly right with us. We have more than 5,000 customers and have been in this business for 20 years.
Excel export: the software brings the calculation logic along
When a GAEB file is transferred to MS-Excel or OpenOffice, the calculation logic – formulas and sum rows – is transferred as well. So you can continue your calculation directly, with no detours.
Use Excel templates for individual pricing
Use Excel templates to calculate perfectly with GAEB-Online 2025. Thanks to placeholders such as #Kurztext# or #Langtext# you can easily adapt the template to your needs.
EKT with Excel: individual costs of partial services
With GAEB-Online 2025 and a smart Excel template you can determine the individual costs of partial services (EKT) and submit the bid digitally as GAEB DA84.
Mobile working with GAEB-Online 2025 USB
Need to use multiple computers or work mobile from a laptop? With GAEB-Online 2025 USB we offer a portable version on a USB stick. Ready to run on any Windows PC.
Also for OpenOffice and LibreOffice
Import prices calculated in Excel, OpenOffice or LibreOffice into a GAEB BoQ. Do all the calculations for a bid in OpenOffice or LibreOffice – quick and easy.
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 can be installed in the terminal-server environment.
EFB form 221 / 223 for award procedures
Need to prepare the EFB form 221 or 223 for an award procedure? The Excel EFB Calculation extension for GAEB-Online 2025 helps you fill it out – based on your unit-price calculation in Excel.
Unit-price calculation directly from BoQs in Excel
On request, GAEB-Online 2025 produces a unit-price calculation from Excel or OpenOffice. You are not dependent on a single software vendor, since you adapt your unit-price calculation and computations directly in Excel.
Easy to use
GAEB-Online 2025 is easy to operate. With a single click you import the GAEB file directly into Excel – including all formulas and sum rows. An import wizard and an integrated help system guide you step by step.
Hands-on video training
With our video training for GAEB-Online 2025 you are introduced to the software online. In logically structured video sequences you learn the most important tips and tricks directly on screen.
Basics
Convert, view, edit GAEB – or just use it as a GAEB viewer
Whether you use GAEB-Online 2025 as a converter, a viewer, or for calculating and submitting your bids: our GAEB software offers a fast and uncomplicated 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 (edition 2021-05). With GAEB DA XML version 3.3 you are 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 individual GAEB files – e.g. DA82 vs DA83 or DA81 vs DA83. You can 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. With her deep understanding of all relevant standards and requirements, she is your competent partner – around the clock.
Nicole answers questions about GAEB formats, EFB forms, XRechnung and more.
Go to GAEB AIN
Nicole · GAEB AI
„How do I export a GAEB BoQ as a DA84 bid with a digital signature?”
In GAEB-Online 2025 open the BoQ, enter the prices, activate your signature under Settings → Signatures and choose Generate DA84 in the bid assistant. The bid is immediately shareable via email or OneDrive.