Bridge — bidding systems

A bidding system exists to pass information to your partner — and to your opponents. Here you will find the current version of two tools: an editor and a presenter.

Editor

For defining and revising a bidding system, describing the strength a call shows and the variant meanings it may carry. It performs simple consistency checks, lets you copy the meaning of calls across from other systems, and generates a convention card, a booklet, and the system itself as a .json file.

Presenter

A tool for explaining what a sequence of calls means under a chosen bidding system.

How to use them

Download the editor (the file bridge-editor.html v0.1.0 · 2026-09-06).
Open it in a browser on your computer. You can define your own system or adapt one of the predefined ones. Exporting saves your system as a local .json file. You can load that into the presenter, and send it to your partner.
Download the presenter (the file bridge-mobile.html v0.1.0 · 2026-09-06).
Open it on your phone (Safari on iOS, Chrome on Android) and load a system. You can show it to the director at a tournament.

Notes

Both the editor and the presenter currently have a Polish-language interface — and both are still being developed. The author would be grateful for any comments or suggestions.