Explore huge JSON files in seconds

Dadroit V Web is a free online JSON file viewer and opener. To open a .json file, simply drag and drop it from your computer, load it from your mobile device, or paste a remote URL. It lets you explore the tree structure, search text or RegEx, and export data directly in your browser with no download or installation required.

It is much faster than any web app you can find online and even better than almost all downloadable applications out there.
It can handle big files without requiring huge memory, and there is no need to send your files to any remote servers. Any task is done instantly, including Find and Export.
It has a clean and easy-to-use interface with no advertisement.
And the best part: it is completely free.

No. All processing happens locally in your browser using efficient algorithms. Dadroit V Web does not use any server to process your JSON files, meaning your file never leaves your machine.
API responses, tokens, and data are not sent or stored anywhere. When you close the tab, all data is gone, making it a highly secure JSON viewer for medical, financial, or enterprise data.

V Web focuses on a few core things:

• Open JSON files from your computer or mobile device.
• Open JSON from a URL (including authenticated endpoints, Basic or Bearer Token)
• Open JSON by pasting from the clipboard.
• Browse the data in a tree view.
• Search for values or keys in the data, Text or RegEx.
• Copy Name, Value, and JSON Path of an element.
• Export the full JSON or just a selected part, minified or formatted

Yes, V Web is designed to handle large JSON files efficiently in the browser. However, web browsers have strict memory limits.
If you need to open massive datasets (up to 1 Terabyte) without crashing or freezing, we recommend downloading the free Dadroit JSON Viewer desktop application.

The tree view shows your JSON as a collapsible structure:

• Objects and arrays can be expanded or collapsed.
• Names and values are shown separately and highlighted.
• Deeply nested data is easier to follow.

You can paste any URL that returns JSON, including API endpoints.
If the endpoint needs authentication, you can use Basic or Bearer Token authentication. The request is made from your browser, and the response is treated like any other JSON file.

Find lets you search for a word, key, or value across the JSON. Simple text search and RegEx are supported.
Matches are highlighted so you can quickly move through the data and see where the term appears.

You can export:

• The full JSON, or
• Only the selected node or branch in the tree

• Minified for a smaller size, or
• Formatted or Pretty-printed for readability

Desktop tools require download, installation, and updates.
V Web runs entirely in the browser, so you can use it on any machine with a modern web browser. Even when you don’t have permission to install software, it’s useful for quick inspection of JSON from APIs, logs, or temporary files. (For massive files that exceed browser memory limits, our desktop tool remains the best option).

Yes. It runs perfectly on Android and iOS using your preferred mobile browser. You won't need to install an app to use this JSON file reader; just open the page and load your file.