Choose or drop a JSON file
or drop a file here
Supports .json / .txt, parsed locally — never uploaded
Structure
Choose or drop a JSON file to explore its structure
File-first · Local · No upload
Large JSON File Viewer
Open hundreds-of-MB files · Tree browse · Search · No crash
No upload, no storage
JSON is processed in memory and never sent to a server.
Share via URL fragment
Share links encode data in the # anchor — never sent to a server.
Remember last edit
Optionally keep your last input locally; clear it with one click.
Why it opens large JSON
Open Large JSON Files
File-first: open big local JSON directly, no copy-paste needed.
Handle Huge & Big JSON
On-demand rendering and a light tree stay stable on very large files.
Fast Tree View & Search
Fold, search, copy paths — consistent with the rest of the site.
Runs Locally — No Upload
Files are parsed on your machine; data never leaves the tab.