Serialized admission

Untrusted input admission

Detect duplicate and dangerous keys, credential-like input, malformed JSON, and bounded structural-limit failures through one inert serialized boundary.

Serialized JSON boundary

Assess untrusted JSON locally

Paste raw JSON or choose a UTF-8 JSON file. Nothing runs on load, and this browser workbench never uploads, stores, renders, or executes the source.

Opaque serialized JSONCredential-like material is rejected as defense in depth. Do not submit real credentials.Optional UTF-8 JSON file

Metadata onlySubmitted keys, values, paths, parser excerpts, and canonical JSON are never shown here.

Load the inert sample or enter raw JSON, then explicitly assess it.

Hosted API and MCP parity

Hosted API/MCP processing is response-only and returns metadata only. The canonical admitted artifact is browser-only and becomes available solely after a successful local assessment. This page does not call hosted endpoints.