JQ Playground (Online JQ Tester)
Run jq filters against JSON directly in your browser and see output instantly.
Runs entirely in your browser — your data never leaves your device.
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How to use this tool
- 1Paste your JSON into the data editor.
- 2Enter a jq filter such as .items | map(.name).
- 3View the transformed output instantly.
Frequently asked questions
- Does it run real jq?
- Yes. It runs a WebAssembly build of jq in your browser, so filters behave like the command-line tool.
- Do I need to install anything?
- No. Everything runs client-side — no install and no server round trips.
- Is my data uploaded to a server?
- No. Every tool on JSONPost runs entirely in your browser using JavaScript. Your JSON never leaves your device, so it is safe to use with private or sensitive data.
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