Private by architecture
Sensitive JSON stays in this tab.
Format, inspect, and validate API payloads in your browser. No pasted tool input is sent to a processing backend.
JSON Formatter
Input processing: local
Input
Formatting runs in this browser. Pasted input is not sent to analytics.
No tool submissions observed
Formatter and Beautifier tested with 50MB JSON in supported local workflows.Normal site delivery may still use network requests.
Verify, do not trust
The processing boundary is part of the product.
PayloadBench core tools process pasted inputs in browser JavaScript. The boundary can be checked directly with the Network panel.
Run the 30-second verification01
Open Network
Load PayloadBench, then open DevTools and select Network.
02
Run a workflow
Paste JSON and format, compare, decode, query, or validate.
03
Inspect requests
Confirm no request contains the pasted tool input.
Professional workflows