Edit tender documents — permanently free.
Bidlane is a browser-based editor for GAEB and bill-of-quantities files. Upload, edit, export — no install, no sign-up, no hidden fees.
We come from the trades ourselves. Day after day, GAEB files, BoQ spreadsheets and PDFs landed in our inbox — and every time the same question: which tool to open them with, which to price them in, which to send back?
The established GAEB programs are powerful, but expensive. If you just need to review a few items or return a file cleanly, you end up paying monthly licenses or hopping from one trial to the next. We spent weekends wiring together converters just to get an X83 into Excel.
At some point we'd had enough. We wanted a tool we'd actually use ourselves every day: fast, clean, in the browser, with no setup — and permanently free. That's how Bidlane was born.
We keep improving it step by step. Instead of license fees we fund ourselves through restrained, high-quality ads from partners in the construction space. You get the tool without paying — and we can keep our promise that the core features stay free, forever.
Three steps to a finished file
1 · Upload your file
Drop your GAEB file (X81 to X86, D81, P81), an Excel BoQ, a PDF, CSV or XML straight into the browser. Bidlane detects the format and reads the structure, items, quantities and prices.
2 · Edit in the editor
Adjust items, change quantities, set unit prices, rewrite descriptions, reorder groups. A clean, modern interface instead of menus from the 90s.
3 · Export & send
One click and you're back in the format you need — GAEB, Excel, PDF or CSV. Download directly from the browser and return it to the client, subcontractor or architect.
What Bidlane stands for
Always free
No trial, no paywall, no hidden limits on the core features. Today, tomorrow, and in five years.
Local & data-light
Files are processed inside your browser. No accounts, no tracking obligations, GDPR-friendly.
From the trades, for the trades
Built by people who review tenders themselves — not by software giants who only know it from a whiteboard.
To keep Bidlane free forever, we fund ourselves through carefully selected advertising. No flashing banners, no shady trackers — just relevant offers from manufacturers, wholesalers and software partners in the construction industry.
We believe good advertising is a fair trade. You get a professional tool without an invoice, our partners reach the right audience, and nobody has to cancel a license because a project is on pause.
Who we build Bidlane for
- Construction companies and general contractors
- Estimators and site managers
- Architects and engineering offices
- Trades businesses of every size
- Tendering authorities and clients
Frequently asked
Is Bidlane really free forever?
Yes. The core features — upload, editing and export of GAEB and BoQ files — are and stay free. Funded by advertising, not by your wallet.
Which formats are supported?
GAEB X81 to X86, D81, P81, BoQ as XLSX and CSV, PDF tenders, plus XML and TXT structures.
What happens to my data?
Processing happens in your browser session. No forced accounts, no permanent storage of your content on our servers.
Does it work internationally?
Yes. Bidlane is available in German, English, French and Spanish and reachable worldwide.
Try it now
Upload your first tender file and see for yourself how fast GAEB can feel in the browser.
Upload a file