Here are some common ones. More will be added in due time
OneKeePass stores all your passwords and other details in a single encrypted file in any place of your choosing in the file system
OneKeePass supports the well known KeePass database format KDBX 4
You can open many databases at the same time. Each database is opened in a separate tab
OneKeePass does not do any automatic synchronization at this time. As the password database is a single file, you can use any of the cloud storage service for the synchronization between devices and also for the backup
Entries are organized so that you can view them as Entry types or Categories or Group tree.
It is just the flattened list of keepass groups instead of a tree/folder like structure
Each entry type has certain set of fields. For example Login entry type include fields like username, password, url etc. OneKeePass supports some built-in standard entry types: Login, Credit/Debit Card, Bank Account and Wireless Router. More standard entry types will be added.
You can create a custom type with sections and fields. Such custom entry type can be used as template while creating new entries
A key file is a file containing random bytes that is used in addition to your master key for additional security. You can basically use any file you want as a key file. Such a file should have random bytes data and the content of this random data remains the same as long as it is used as key file.