SafeJSON - Local JSON Formatter EN

SafeJSON detects raw JSON responses and formats them for readability in the current browser tab.

Use the toolbar to copy JSON locally and open SafeJSON for browser-local JSON workflows: formatting, validation, viewing, diffing, JWT decoding, JSONPath querying, and schema validation.

The extension does not put page JSON into query-string parameters. Clipboard access is used only after a user action to copy formatted JSON locally.

Why SafeJSON
- Formats raw JSON responses in the current tab
- Syntax highlighting for strings, numbers, booleans, and null values
- One-click copy for formatted JSON
- Opens SafeJSON without putting JSON payloads in the address bar
- Works with the SafeJSON web toolkit
- Open source on GitHub

Privacy boundary
Core extension formatting runs in the browser page. Normal website delivery, analytics, billing, and license checks may still use network requests when you open SafeJSON. You can verify the pasted-content boundary in the DevTools Network tab.