Inspect nested structure
Searchable tree and raw editor views make nested objects, arrays, keys, values, and record boundaries easier to inspect.
FREE BROWSER-LOCAL FILE TOOLS
Understand any JSON file.
Open or paste JSON, inspect its structure, edit, format or minify it. Your contents stay in this browser.
Step 1: open your file
Open JSON, JSONL or NDJSON to inspect and edit. Contents stay in this browser.
- Inspect the source, Tree or Table; edit and review validation feedback.
- Download the result in your document’s format.
Paste JSON
File contents stay in this browser. Download changes before refreshing or closing the tab.
Edit, format and validate
Pretty-print or minify a complete JSON value, then download the validated result. Syntax problems are reported without sending the document to a server.
Choose the matching format
Use JSON for one complete value, JSONL or NDJSON for one JSON value per line.
Frequently asked questions
How do I open a JSON file?
Choose or drop a .json file, paste a complete JSON value, or try the sample. The editor opens with your input ready for Source, Tree or Table inspection.
Can I edit and download my JSON?
Yes. Edit the source or structure, review validation feedback, then download your edited JSON. Save a download before refreshing or closing the tab.
Does my JSON file get uploaded?
No. Selected and pasted file contents are processed in your browser. Ordinary page and asset requests still reach the hosting provider.