JSON (JavaScript Object Notation) is a lightweight way to store and exchange data, think of it as an easy-to-read list or dictionary that apps and websites use every day. Our free online JSON utilities help anyone quickly view, fix, compare, or convert JSON data, no downloads or sign-ups required.
How Do I View a JSON File Online? Paste or upload your .json file into our JSON Viewer (also great as an online JSON object viewer or React JSON viewer style).
It formats the data with colors, collapsible sections, and clear indentation so you can read nested objects and arrays instantly. Works perfectly as a JSON file viewer for Mac or any browser, no installation needed.
For big or complex files, use the JSON Navigator or JSON stack viewer to drill down without confusion.
Validate and Clean JSON Data Not sure if your JSON is valid? Our JSON Validator scans for syntax errors and suggests fixes.
Pair it with the JSON Cleaner or JSON Fixer to remove extra spaces, fix broken quotes,
or repair invalid structures. These tools save hours when debugging API responses or
config files.
Make JSON Smaller and More Readable Large JSON slows things down. Use the
JSON Minifier to compress it into one compact line (ideal for "JSON to one line"
needs).
Switch back with JSON MultiLine String or Unstringify JSON when you need readable
format again. The JSON Sorter organizes keys alphabetically for easier scanning, and
JSON Syntax Highlighter makes code pop with colors.
Compare JSON Files Side by Side Spot differences fast with Compare JSON, it
highlights added, removed, or changed values clearly. Perfect for checking API
updates or version differences
Convert JSON to Other Formats (and Back) Export your data wherever it needs to go:
Advanced Tools for Developers Test paths with JSON Path Tester, generate samples via Random JSON Generator, or decode tokens with JWT Decode. For schemas, the JSON Schema Viewer shows structure rules clearly.
All tools run in your browser for full privacy, your data never leaves your device. Whether you're a student exploring JSON, a developer fixing APIs, or an analyst moving data, these utilities make JSON simple and fast.