BIDS

BIDS schemas: The official BIDS JSON schemas for defining the content of BIDS JSON files.

JSON

JSON.org The official JSON site
JSON Linter is an online site that can check the syntax of your JSON file to ensure it is correct.
Download the JSON Cheat sheet so you can have all the details at hand.
The JSON-Editor Interactive Playground is an excellent tool for preventing syntactic and semantic errors in the JSON sidecar files. It is limited to handling one schema at a time, but still incredibly useful for enhancing your understanding of the syntactic and semantic criteria that govern BIDS JSON files.

Note

The Interactive Playground can optionally be downloaded and installed on your local machine: git clone https://github.com/pmk65/jedemov2
Double-click the `demo.html` page jedemov2/dist/demo.html to open the interface locally.

JQ

jq is a standard command-line tool for viewing, filtering, and modifying JSON files. See the jq manual.
- jq binaries are available on the download page or can be downloaded with homebrew on the Mac.
- JQ is available on Google Cloudshell and the U of A HPC.

Note

jq is not available from the UofA HPC login node: That is, you must start an interactive session or interactive desktop to use jq .

JD

jd is an excellent tool for comparing JSON files. It does what the standard unix diff cannot, by allowing you to identify meaningful differences between JSON files regardless of their formatting. jd also offers patching functionality.
- jd is available as a binary for Linux, Mac, or Windows, or can be downloaded with homebrew on the Mac or other package managers on Linux.
- It is available on the U of A HPC at /groups/dkp/neuroimaging/bin/jd for your convenience.
Both jd and jq are used to great effect to edit ASL JSON sidecars to guarantee BIDS compatibility. With a little scripting, they are generally flexible tools for manipulating JSON files.

JSON 1 (5)