工具指南与常见问题
JSON Formatter
Readable JSON makes API responses, configuration files and debug logs easier to inspect. Formatting changes whitespace without rewriting string values or numeric tokens, including large integers. The output stays separate from your source so you can review it before copying or downloading.
- Paste JSON or open a local file.
- Choose the indentation and select Format.
- Inspect the output, then copy or download the JSON.
Example input
{"project":"KearAI","ready":true,"tools":["format","validate"]}JSON Validator
Valid JSON uses double-quoted keys, allows no trailing commas and supports objects, arrays, strings, numbers, booleans and null. This validator highlights syntax errors and separately warns about duplicate keys and numbers that JavaScript may round. A valid document may still have data-quality warnings.
- Paste the document into the input editor.
- Select Validate to find an error or confirm the syntax.
- Use the highlighted location to fix the source and validate again.
Example input
{"status":"ok","count":3,"items":[1,2,3]}JSON Minifier
Minification removes indentation and line breaks outside strings. It is useful for compact fixtures, embedded configuration and transferring JSON. This tool preserves the spelling of numbers instead of parsing and reserializing them through JavaScript, so large IDs are not silently rounded.
- Paste a valid JSON document.
- Select Minify to produce a compact version.
- Copy the result or download a .json file.
Example input
{
"name": "Compact JSON",
"enabled": true
}JSON to CSV Converter
CSV works best with an array of objects representing rows. The converter uses object keys as column names and escapes commas, quotes and newlines in cells. Nested values are serialized as JSON text. When opening untrusted CSV in spreadsheet software, import cells as text to avoid interpreting formulas.
- Paste an array of JSON records.
- Select Convert, then JSON → CSV.
- Review the columns and download the CSV output.
Example input
[{"name":"Ada","role":"Engineer"},{"name":"Lin","role":"Designer"}]JSON to YAML Converter
YAML is often used for configuration files where readability matters. The converter handles nested mappings, sequences and multiline text. In the reverse direction, duplicate mapping keys and unsafe numbers are rejected, and alias expansion is limited. YAML-specific values that JSON cannot represent are reported as errors.
- Paste valid JSON or a YAML document.
- Choose the matching conversion from the Convert menu.
- Review the output before replacing your configuration.
Example input
{"service":"api","replicas":2,"environment":{"LOG_LEVEL":"info"}}JSON to TypeScript
Generate a Root type directly from sample JSON. Array records are examined together so missing properties become optional and mixed values produce union types. Types are inferred from the supplied samples, so review them against your API contract before using them in production.
- Paste representative JSON samples.
- Choose Convert, then JSON → TypeScript.
- Copy the inferred Root type into your project and review optional fields.
Example input
{"users":[{"id":1,"name":"Ada"},{"id":2,"name":"Lin","active":true}]}JSON Compare & Diff
Compare structured JSON values rather than indentation. Object key order does not create a difference, while array positions remain significant. The result identifies the paths of changed values. Precision-sensitive numbers and duplicate keys should be resolved before comparing parsed values.
- Paste the first document into the input editor.
- Open Compare and paste the second document.
- Select Compare to inspect the changes in the output panel.
Example input
{"version":1,"features":{"search":true,"export":false}}JSON Lines Converter
JSON Lines stores one complete JSON value per line and is commonly used for logs and data exports. Blank lines are ignored on import, while malformed records report their line number. Import preserves original number tokens; export blocks values that would lose numeric precision.
- Paste one JSON value per line.
- Choose Convert, then JSONL → JSON.
- Use JSON → JSONL for the reverse conversion of an array.
Example input
{"id":1,"event":"start"}
{"id":2,"event":"complete"}常见问题
什么是JSON格式化工具？
JSON格式化工具是一种在线工具，可以将原始JSON数据重新格式化，添加适当的缩进，使JSON对象和数组的结构更易于阅读、调试和理解。
如何在线验证JSON？
将您的JSON粘贴到输入编辑器中，我们的工具将实时验证。状态栏会显示您的JSON是否有效，任何语法错误都会以详细的错误消息高亮显示。
可以将JSON转换为CSV、XML或YAML吗？
可以！使用转换下拉菜单将JSON转换为CSV、XML或YAML格式，或从这些格式导入数据回JSON。所有转换都在浏览器中即时完成。
AI JSON助手如何工作？
我们的AI助手可以分析您的JSON数据，解释其结构，修复错误，生成TypeScript接口，创建JSON Schema，优化结构，并回答任何与JSON相关的问题。
这个JSON工具免费吗？
是的，所有JSON格式化、验证、转换和实用工具完全免费。AI助手也无需注册即可免费使用。
常规工具在浏览器本地处理。AI 与 URL 导入需要联网。草稿保存默认关闭，开启后仅保存在本机浏览器，关闭即可删除。 隐私说明