There are few viewers/editors listed at http://softwarerecs.stackexchange.com/questions/18839/json-viewer-for-windows http://softwarerecs.stackexchange.com/ques

There are few viewers/editors listed at http://softwarerecs.stackexchange.com/questions/18839/json-viewer-for-windows http://softwarerecs.stackexchange.com/questions/18839/json-v... JSONedit should work well with files up to few MBs, with larger files loading time may be not acceptable. Side note: for editors that generate structured view file size may be not precise metric - number of elements might work better.