What you can do
- Parsing reports syntax location; it does not validate a business schema.
- Use Validate when JSON fails to parse or before sending it to an API.
- The source stays unchanged and the result is created as a new file.
JSON Formatter and Validator / Local
READ JSON CLEARLY.
KEEP DATA PRIVATE.
Format, explore, validate and minify JSON directly in your browser.Your input never leaves this browser.
Start05 — JSON TOOLS
JSON tools
All JSON is processed in this browser and is never uploaded.
VALIDATE
Format JSON for readability, explore it as a tree or validate its syntax.
Result
Paste JSON text or choose a local file.
All JSON is processed in this browser and is never uploaded.
Tool guide / ONLY MY KIT
Check JSON syntax privately
Parse JSON, confirm valid input and use line and column information to find syntax errors.
How to use it
- Paste the JSON to check.
- Run syntax validation.
- Use the reported line and column to locate an error.
- Correct the source and validate it again.
FAQ
Frequently asked questions
When should I use this tool?
Use Validate when JSON fails to parse or before sending it to an API.
Is the source sent to a processing server?
No. Supported conversion for this tool runs in the current browser.