React Developer Tools
Developer ToolsFree
Inspect React component trees, props and state.
3.91,600 reviews5M+
View Extension
JSON Formatter
Makes raw JSON responses readable in the browser.
JSON Formatter screenshots
Overview
JSON Formatter pretty-prints JSON API responses with syntax highlighting, collapsible nodes, clickable URLs and a raw/parsed toggle, replacing an unreadable wall of text.
Pros
- Automatic pretty printing
- Collapsible tree view
- Handles large payloads
- Open source
Cons
- No request editing
- Limited theming
- Only works on JSON responses
Who should use JSON Formatter?
Anyone poking at REST APIs directly in the browser.
Pricing
JSON Formatter is free. There is no paid tier to consider.
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View ExtensionFrequently asked questions
Is JSON Formatter free?
Yes, JSON Formatter is free to use.
Is JSON Formatter safe to install?
JSON Formatter is published by Callum Locke. As with any extension, review the permissions it requests before installing and remove it if you stop using it.
What are the best JSON Formatter alternatives?
Browse the Developer Tools category for comparable options.
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