Start with valid syntax
Keys and strings use double quotes. A document can also contain an array, a number, a boolean or null.
Cloud Desk / Local utilities
Your configuration,
in good order.
A simple notebook for structured text. Open a JSON file, check its syntax and take a clean copy with you.
Working document
Configuration notebook
Ready for your document.
0 charactersAccepts standard JSON up to 2 MiB. Comments and trailing commas are invalid. Arrange and Minify can change number precision beyond JavaScript's safe integer range. Shortcut: Ctrl+Enter or ⌘+Enter to arrange.
Root type—
Top-level entries—
UTF-8 size0 B
Quick guide
A few useful details
Choose the right layout
Arrange uses two-space indentation. Minify removes optional whitespace. Keep an original copy when exact numeric values matter.
Use the sample project
The sample project is a small JSON document you can download, edit and open again.
Project example ↗An editor without an account.
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.