🗜️ JSON Shrink

Reduce oversized JSON while marking exactly what was elided.

Context Workbench: shrink the exact JSON slice after Repair and Query.

JSON

{"items":[1,2,3,4,5],"description":"This long description can be shortened for a model context window.","empty":null}

Array samplesString charactersMaximum depth Drop nulls

Shrunk JSON

Runs in your browser

JSON stays local. Token counts are estimates; byte counts are exact.

Include current input in shared/debug payload

What this tool does

JSON Shrink creates valid smaller JSON with explicit markers for removed items and characters.

It provides shape and samples without silently hiding loss.

Every truncated array or string receives an in-band marker and exact byte statistics.

Shrinking runs locally in your browser.

The output is intentionally lossy; use JSON Query when exact field selection is known.