CSV Formatter
Free, browser-based CSV to JSON converter. 100% Client-Side and Privacy-First for secure data parsing.
Capabilities
Turns flat CSV rows into structured JSON arrays. Handles custom delimiters and header rows, so exports from spreadsheets or databases drop straight into your app.
Target Use Cases
- Preparing spreadsheet data for web apps
- Converting exported datasets for API testing
- Restructuring flat CSVs into nested JSON
- Quick data migration from legacy formats
Parses CSV in a dedicated Web Worker, so large files process without freezing the UI. Output is ready to copy or pipe straight into the next tool.
⚡ Off-thread · UI stays at 60fps
Raw Input
1 lines
JSON Output
Rows: 0Cols: 0
Parsed in 0ms