Online JSON viewer & formatter
View & format JSON
Paste JSON to explore it as a collapsible, color-coded tree or to beautify, minify, and validate it. Switch between Tree and Formatted views anytime. Runs in your browser — nothing is uploaded.
Input
An interactive tree will appear here.
Frequently asked questions
- Is this JSON viewer and formatter free?
- Yes. JSON-Table is completely free and requires no sign-up.
- How do I format (beautify) or minify JSON?
- Paste your JSON and switch the output to Formatted, or click Format to pretty-print the input with 2-space indentation. Minify collapses it back to a single compact line.
- Can I view JSON as a tree?
- Yes. The Tree view renders your JSON as a collapsible, color-coded tree so you can expand and explore nested objects and arrays.
- Does it validate JSON?
- Yes. Invalid JSON is flagged inline with the error message and the exact line and column, so you can fix it quickly.
- Is my JSON data uploaded anywhere?
- No. Viewing, formatting, and validation all run entirely in your browser — your data never leaves your machine.
- Can it handle large, deeply nested JSON?
- Yes. Paste it here for a quick tree or formatted view, or open it in the workspace for a virtualized tree plus a filterable grid built for very large documents.