Javascript Regex to match value of JSON key value pair

You can use the pattern:

[:]\s(\".*\")

and test it following this link: https://regex101.com/r/nE5eV3/1

I guess this one does the job also well. One good part it doesn't use any capture groups one bad part it's more costly compared to the accepted answer.

[^:]+(?=,|$)

Debuggex Demo

Regex101 Demo

Get value

[^:"]+(?="})

Get value by key

If you wish to select a specific key that can be done like so:

[^:KEY"]+(?="})