> For the complete documentation index, see [llms.txt](https://functional.gitbook.io/database_comparison_report/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://functional.gitbook.io/database_comparison_report/firebase/cons-of-firebase.md).

# Cons of Firebase

**Limited querying capabilities.** While this is valid only for Realtime Databases, it’s still an issue if you are mainly planning to use this storage. The problem here is that you are restricted to making simple queries as there are no filter capabilities for more complex ones. This is because the entire database is a big JSON file with no options for data modeling.

**Limited data migration.** If you use Firebase to host all your data, migrating it to another platform can become an issue. The service lacks migration tools to transfer data or set the default database of a project.