Browser toolkit / JSON

Less clutter.
Clearer data.

Review a document, make its structure readable and save your next version. The editor runs entirely on your device.

Data editor

JSON workspace

Runs locally

Your JSON document

Ready for your document.

0 characters

Accepts standard JSON up to 2 MiB. Comments and trailing commas are invalid. Format and Compact can change number precision beyond JavaScript's safe integer range. Shortcut: Ctrl+Enter or ⌘+Enter to format.

Root type—

Top-level entries—

UTF-8 size0 B

Lines0

Reference

Working with JSON

Check the syntax

Keys and strings use double quotes. A document can also contain an array, a number, a boolean or null.

Keep a readable copy

Format adds two-space indentation. Compact removes optional whitespace. Keep an original copy when exact numeric values matter.

Start with a batch plan

Download the small batch example to try file import, formatting and export.

Batch example ↗

Local work, temporary workspace.

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.