A browser workspace

Make room for
readable JSON.

A small desk for configuration files: open a document, check its structure and take a clean copy with you.

Local processingDocuments stay in this tab Standard JSONFiles up to 2 MiB Start with a sample ↗Download settings-example.json

Your document

JSON editor

Browser only

Root type—

Top-level entries—

UTF-8 size0 B

Lines0

Paste JSON or open a local file

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Standard JSON does not accept comments or trailing commas. Format and Compact can change number precision beyond JavaScript's safe integer range. Ctrl+Enter or ⌘+Enter formats the focused editor.

A temporary place to work.

The editor does not upload documents or save them in browser storage. Reloading brings back the example; save a file if you want to keep your changes.

The web server may record ordinary page requests, which do not include document contents. Copy uses your device clipboard, and Export creates a local download.