What it does
Paste JSON into the formatter to reindent it for readability, compact it for storage, or catch syntax issues before you share or deploy it.
Good for
- Reviewing API responses and configuration files.
- Preparing JSON for documentation or handoff.
- Quickly identifying malformed payloads.
Why it stays private
All parsing and formatting happens client-side in your browser, so your content remains on your device.
Frequently asked questions
Is JSON formatting done locally?
Yes. SwITss Knife parses and formats your JSON in the browser, so the data stays on your device.
Can I use this to find JSON errors?
Yes. Invalid JSON is flagged during parsing, which makes broken commas, braces, and quotes much easier to spot.
Do I need to upload my data?
No. The tool runs client-side in your browser and never sends your payload to a server.