JSON Validator for Notepad++? was closed, and none of the links there point to an actual validator for JSON data.

I don't need to reformat JSON, I want a visual cue that I've missed a comma or a bracket.

How do I make Notepad++ do this, even if only like it would in XML if I did not close a string?


  • mhhhmm ... so your question is asking for an actual plugin? – bummi Jan 8 at 21:17
  • @aybiss, You might try the stand-alone free JSONEdit, tomeko.net/software/JSONedit [This comment is acknowledged as off-topic because it belongs in software recommendations, so I'll delete it if desired.] – DrMoishe Pippik Jan 8 at 23:04
  • @bummi well i wouldn't want to be asking for a software recommendation, but if you know of one i'll accept it as the answer :-) – aybiss Jan 9 at 4:40
  • @DrMoishePippik that looks really nice but i spend half my days editing XML, JSON, INI and so many other files in Notepad++. VisualStudio itself validates JSON if you load it up, but it takes so long to load the application it's not workable. I really do need to keep using my "one-stop-shop" text editor where I've defined macros and so forth, I just want to be able to do one more thing with it. – aybiss Jan 9 at 4:43
  • With the JSON Viewer plugin, you'll get an error message if the JSON is malformed. – Toto Jan 9 at 13:05

You can use Codverter JSON Validator, it`s online and highly secure, everything you do is interpreted on your local computer and never sent back to the server.
the validation error messages are informative and accurate.

(Full Disclosure: I am one of the developers).

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