Structure first
Keys and strings use double quotes. A document can also contain an array, a number, a boolean or null.
Tools / Structured text
A quiet place
for messy JSON.
Check a configuration, tidy its layout and export a readable copy. No account, no file upload.
Workspace
JSON desk
Ready for your document.
0 charactersAccepts standard JSON up to 2 MiB. Comments and trailing commas are invalid. Formatting can change number precision beyond JavaScript's safe integer range.
Root type—
Top-level entries—
UTF-8 size0 B
Field notes
Before you export
Readable or compact
Format uses two-space indentation. Compact removes optional whitespace. Keep an original copy when exact numeric values matter.
Try a small document
Use the example to explore the controls before opening your own file.
Example configuration ↗Your text stays in the tab.
The editor does not send documents to a server or store them in browser storage. Reloading restores the example. The web server may log ordinary page requests; document contents are not included in them.
Copy uses your device clipboard. Export creates a local download. Open the usage notes for a short offline reference.