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使用指南 / Guide+

Online JSON tools that keep your data local

Format, validate and query JSON in one browser workspace. Paste your data or open a local file, then inspect its structure and extract the records you need.

Use the tool ↓

How to use this tool

Start with your JSON

Paste a JSON object or array, or choose a local .json or .jsonl file. The live preview shows whether it parses and which fields are available. Try the sample before working with your own data.

From formatting to focused results

Use Format for readable indentation and Compact to remove formatting whitespace. Enter the workspace to build conditions, query nested paths or write an expression. Copy or export the selected result.

Your JSON stays in your browser

Parsing and queries run locally. The editor automatically saves a draft in this browser; Clear removes that draft. Saved query presets are also local. Avoid keeping sensitive drafts on a shared computer.

Input and output example

Format turns compact JSON into readable text. Query and validation are available in the same workspace.

Input

{"name":"Prism","total":20}

Output

{
  "name": "Prism",
  "total": 20
}
All toolsJSON formatter and minifierJSON syntax validatorQuery JSON paths and filter recordsJSON Lines viewer and converter

No sign-up required. JSON content is processed locally.

Prism
All toolsJSON formatter and minifierJSON syntax validatorQuery JSON paths and filter recordsJSON Lines viewer and converter
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