← SaaS Lite · Developer
Format JSON
Formats and validates JSON data, reporting any errors.
Indents and validates JSON. On an error you get the exact position, not just “invalid”.
How it works
- Paste your JSON
- Click “Run”
- Copy the result, or fix the reported position
Runs entirely in your browser — the data never leaves your device.
Frequently asked
What does it cost?
Every tool shows its price before you start. Tools marked free run in your browser and never cost anything — no sign-up needed.
What happens if processing fails?
You are not charged. We only charge when a result is actually produced; if the run fails, the charge is reversed.
What happens to my files?
Uploaded files are processed in memory for that one request and then discarded. We do not store them, and their contents never reach our logs or analytics.
Do you use my own API key?
No. Your BYOK key belongs to the Playground and is never used for these tools.
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