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🗺️ CSV to GeoJSON Converter

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🔒 Client-side — Your data never leaves your browser ✅ 100% Free — No signup, no limits ⚡ Instant — No server processing

📋 How to Use

  1. 上传CSV — 上传或粘贴含经纬度数据的CSV文件
  2. 选择列 — 选择经纬度对应的列名，工具会自动识别
  3. 预览地图 — 在地图上预览数据点分布
  4. 下载GeoJSON — 下载转换后的GeoJSON文件

将含经纬度的CSV数据转换为GeoJSON格式，支持地图预览，纯前端处理

📁 点击上传CSV文件 或 在下方粘贴CSV数据

支持.csv格式，文件仅在本地处理

❓ Frequently Asked Questions

Is ️ CSV to GeoJSON Converter free to use?

Yes, ️ CSV to GeoJSON Converter is completely free to use. No registration or login required — all features are available immediately.

Can I use ️ CSV to GeoJSON Converter on my phone?

Yes. ️ CSV to GeoJSON Converter is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.

Do I need to install any software?

No. ️ CSV to GeoJSON Converter is a web-based tool — just open it in your browser and start using it. No downloads, plugins, or extensions required.

Does ️ CSV to GeoJSON Converter upload my data to a server?

No. ️ CSV to GeoJSON Converter uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.

How large a JSON file can I process?

Since processing is client-side, file size depends on your device memory. Files up to several MB typically process smoothly.

Does it support JSONPath queries?

Yes, standard JSONPath syntax is supported. You can use dot notation and bracket syntax to access nested fields.

Are converted files compatible with other software?

Yes. Converted files follow standard format specifications and are compatible with mainstream software and platforms.

CSV文件需要包含哪些列？
CSV文件至少需要包含经度(longitude/lng/lon)和纬度(latitude/lat)两列。工具会自动识别常见列名，也支持手动指定经纬度列。
支持哪些坐标系？
目前支持WGS84坐标系（EPSG:4326），这是GeoJSON标准要求的坐标系，也是GPS和大多数Web地图使用的坐标系。
数据量有限制吗？
纯前端处理，数据量取决于浏览器性能。通常可处理数万条记录，超过10万条可能会变慢。建议大数据集分批处理。