CSV Toolkit
在浏览器本地格式化、校验 CSV，或与 JSON 互转。PapaParse 本地解析，处理引号与换行，数据不上传。
Interactive controls load with JavaScript. Processing stays in your browser.
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How to use
- 粘贴 CSV 或 JSON 数组，选择格式化 / 互转 / 校验。
- 可自定义分隔符与是否含表头。
- 解析遵循 PapaParse，引号与换行更稳健。
- 与「CSV 与 JSON 转换」互补：本页强调格式化与校验。
FAQ
Does CSV Toolkit upload my data?
No. CSV Toolkit runs locally in your browser and does not upload content to www.518882.com or third-party APIs.
Do I need an account?
No. Open and use — no signup, login, or paywall. Open CSV Toolkit and use it — no signup, login, or paywall.
How is this different from upload-based tools?
Tools run locally in your browser; content is not sent to our servers for processing — suited to private text and drafts.
Are there limits?
Limited by device memory and the browser; very large inputs may slow the page. There is no account quota.