PasteKit

PasteKit

Format JSON, YAML & SQL privately

PasteKit lets you paste JSON, YAML, XML, SQL, CSV, or plain code and get formatted, validated output in an instant. It supports 58 formats, 48 converters, and a solid set of JSON tools such as diff, schema, repair, and jq. Everything runs in your browser, with a strict Content Security Policy keeping the whole process local, so the code or data you paste never leaves your machine.

Launch Team / Built with

KY

Launched October 24, 2026