# Convention card > Build and edit a bridge convention card in the browser, with no account. > Import BBO, Bridgodex and BBA (.bbsa) cards; export the ACBL cards as PDF, > Bridgodex, .bbsa and JSON. Cards stay in the browser. **If you are reading or writing a card, read the plain-text reference first.** It is generated from the spec the editor reads, so it lists exactly the fields a card can hold, and the page's program interface, window.card. ## Reference - [Card reference, plain text](https://bridge-craftwork.com/card/reference.txt): every field (path, kind, values, default, older paths), every convention (ID, level, summary) and window.card. About 175 KB, 572 fields and 175 conventions, version 0.26.0. ## Editing a card - [The convention card editor](https://bridge-craftwork.com/card/): build a card, import one, print the ACBL card. A card can also be opened by link: https://bridge-craftwork.com/card/#import=v1.. ## Source - [convention-card on GitHub](https://github.com/bridge-craftwork/convention-card): the spec, the JavaScript library, the editor and the Rust crate.