You could but you shouldn’t.
You might think having a JSON export is like creating a backup of your Trello account. It’s understandable why you might think that since even Trello suggests using a JSON export as a backup. However, it’s not a solution to your problem and here’s why:
1. Trello doesn’t enable JSON imports
2. It is not currently possible to import a JSON export to recreate a Trello board. As a result, even if you’re regularly exporting your boards as JSON files, you will have to manually recreate them if you run into a problem. JSON is hard to use
For a Trello user looking to quickly recover from a mistake, parsing through JSON notation can be quite cumbersome. And with no way to import it back into Trello, you’d have to write code in order to do so.
“It was suggested that I export my boards to JSON which I was able to do. As a result, I got a huge web page with JSON gibberish. The problem is that none of the instructions say anything about what to do with this data, nor how to import it back into Trello.” You have to remember to regularly export new JSON files
4. If you make the mistake of relying on JSON files as your backup, you will have to remember to update those files on a consistent basis. In some cases, even a week-old export might be too outdated to be used to recover after a problem. This is especially true for Trello users who make important changes to their boards daily. JSON files do not transfer images
Images cannot be imported into JSON format. As a result, if you lose all of your attachments, you’re going to have to manually add them back, which would take hours or days of work.
You should think twice before deciding that JSON exports are a sufficient backup solution. Use Rewind to backup Trello and ensure that your information is fully protected and easily recoverable.