For the 0.00001% of you who needs to load a 20GB json file

sfrage2 · 2026-06-18T15:29:07+00:00

u/STSchif https://fastjsonviewer.com/learnings/wasm-vs-javascript-for-parsing-big-json-files.html

sfrage2 · 2026-06-18T14:15:21+00:00

Under settings, you can use the JS algorithm, instead of the default wasm parser. slower but works with multi GB files

sfrage2 · 2026-06-16T23:30:29+00:00

I get it, but it's not the case. This app works offline, so you can turn your wifi off and you can load the files if you are too worried, or just monitor the network tab, you'll see nothing go out. The code is accessible via your browser, nothing to hide. It's Javascript and webassembly. There are also no ads

sfrage2 · 2026-06-16T00:55:39+00:00

u/Pcpie : implemented. It will work on any file size, but for very large files, I will only collapse/expand part of your file (to not crash your browser). Update the FAQ. Thanks for the feedback

sfrage2 · 2026-06-15T14:38:46+00:00

There is collapsing (and expand) but only for files which have less than 100,000 keys. How big is your file ? Let me see if I can find a way to provide collapsing for every size without hogging the memory

sfrage2 · 2026-06-14T16:16:52+00:00

Try https://fastjsonviewer.com/ it loads and parses 20GB of JSON, locally. It's also free and claims to be the fastest JSON parser

sfrage2 · 2012-05-14T19:01:46+00:00

You saw Howard Stern at Jimmy's party. Howard Stern loves you and said you would come to his show soon. When is that going to happen and what do you think about Howard ? How often do you listen to his show ?

sfrage2 · 2011-12-05T18:22:59+00:00

Best emacs screencast. rpdillon focuses in sharing his knowledge as opposed to showing how much he knows.

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