JSON Formatter is a free browser tool to beautify or minify JSON, optionally sort keys or strip nulls, and inspect the result in a collapsible tree view — without installing an editor plugin.
Paste JSON, load Sample, or Import a .json / .txt file, then Format or Minify and Copy or Download the result. Invalid JSON fails Format until you fix parse errors. There is no convert-to-XML/YAML/CSV panel and no Fetch URL in this tool.
- Step 1: Provide JSON. Paste into the editor, load Sample, or Import .json / .txt.
- Step 2: Choose options. Pick Beautify or Minify, indent (2 / 4 / Tab), and optional Sort keys or Strip nulls.
- Step 3: Format and inspect. Run Format (or Minify). Open Tree for a collapsible view of objects and arrays.
- Step 4: Copy or download. Copy the output or Download when you need a file.
- Beautify and minify JSON
- Indent options: 2, 4, or Tab
- Sort keys and Strip nulls options
- Collapsible Tree view
- Sample and Import (.json, .txt)
- Copy and Download
Common use cases
- Pretty-print API responses: Make nested JSON readable for code review or debugging.
- Minify for transport: Collapse whitespace when you need a smaller text payload.
- Normalize key order: Sort keys before comparing two documents offline.
- Strip null noise: Remove null fields when cleaning an example payload.
- Browse structure in Tree view: Expand objects and arrays without scrolling a giant single line.
- Share a cleaned sample: Download or copy a formatted snippet for docs or tickets.
JSON Formatter works with JSON text:
- JSON in the editor
- Import: .json, .txt
- Formatted or minified JSON output
- Download / copy of the output text
Working with XML instead? Try XML Formatter. Browse more utilities on all tools.
FAQ
Is JSON Formatter free?
Yes. Tools Viewer tools are free to use in the browser with no account required.
Do I need to create an account to use JSON Formatter?
No. Open the tool and start working — signup is not required.
Is my content uploaded to your servers?
No. JSON Formatter runs in your browser. Content stays on your device unless you copy or download a file yourself.
Can it convert JSON to XML, YAML, or CSV?
Not in this tool. It formats and minifies JSON and shows a Tree view. Browse
all tools when you need a different format family.
What happens if my JSON is invalid?
Format fails until the document parses. Fix the reported issue, then run Format again.
What is a JSON formatter?
A JSON formatter takes compacted or messy JSON and reprints it with consistent indentation (or minifies it). Tools Viewer also adds optional key sorting, null stripping, and a tree view — all in the browser.
How do I beautify JSON online?
Paste your JSON into JSON Formatter, choose Beautify and an indent size, click Format, then Copy or Download the result.
JSON Formatter