webtech360-product-catalog.json
See how JSON works with this ready-made sample. Open it in the viewer or download the original JSON file for your own testing.
Open JSON files online
JSON is the most common data-interchange format on the web. The viewer pretty-prints and highlights it, collapsing nested structures.
Interactive viewer — This format is parsed and rendered in the browser.
Drop a JSON file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Sample files for JSON
Choose an extension below to open a ready-made sample in the viewer or download it for your own testing.
webtech360-jsonc-sample.jsonc
See how JSON works with this ready-made sample. Open it in the viewer or download the original JSONC file for your own testing.
You can also edit JSON online — change the content with find & replace, then save it back. Nothing is uploaded. Or turn JSON into an image — snapshot the preview, add arrows or notes, and download a PNG.
What is a JSON file?
JSON is the most common data-interchange format on the web. The viewer pretty-prints and highlights it, collapsing nested structures. The .JSON extension identifies a JavaScript Object Notation file, which is served with the application/json media type. You can open it here instantly — drop the file into the box above and it renders in your browser. Nothing is uploaded.
Besides this free online viewer, you can open JSON files in desktop apps such as VS Code, web browsers, any text editor — but here all you need is a web browser.
Quick facts
| Format | JSON — JavaScript Object Notation |
|---|---|
| File extensions | .json .jsonc |
| MIME type | application/json |
| Developer | Douglas Crockford |
| Category | Text & markup |
| Also opens in | VS Code, web browsers, any text editor |
How to open a JSON file online
- Click Choose file above, or drag your JSON file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render JSON in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .JSON file?
A .JSON file is a JavaScript Object Notation, identified by the application/json media type. You can open and read it instantly in the viewer above without installing anything.
What programs open JSON files?
On the desktop, JSON files typically open in VS Code, web browsers, any text editor. Online, this page opens them in any modern browser — nothing to download.
Can I edit a JSON file online?
Yes. Open your file, switch to Edit, change the text with built-in find & replace, then click Save. It all runs in your browser — nothing is uploaded.
How do I convert JSON to an image?
Use Snapshot to capture the JSON preview, optionally add arrows, text or highlights, then download it as a PNG image.
Is it safe to open my JSON file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a JSON file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.