Data file
What is a .json file?
A .json file holds structured data as readable text. Apps, websites and games use it for settings and saved data.
This extension has been used by more than one format
2 different formats have claimed .json over the years, so two files with the same extension aren't necessarily the same kind of thing.
How to open a .json file
- WindowsVS Code
- WindowsNotepad++
- WindowsAny browser
- MacVS Code
- MacTextEdit
- Linux`jq . file.json` prints it nicely
How to convert a .json file
- Online JSON-to-CSV converters, or a spreadsheet's Get Data → From JSON.
MIME type
When a .json file travels over the web, servers label it with this MIME type:
application/jsonThe technical record
For archivists, developers and the merely curious: these are the PRONOM registry entries for .json.
| Format name | Version | MIME type | PUID |
|---|---|---|---|
| JSON Data Interchange Format | — | application/json | fmt/817 |
| Tweet JSON | — | application/json | fmt/1311 |