All Tools
Essential data conversion and formatting tools, processing 100% within your browser. No data ever leaves your device.
CSV → JSON Converter (File-based)
Simply select a file for instant conversion. Supports UTF-8, Shift-JIS, and more.
CSV → JSON Converter (Paste-based)
Quickly paste CSV data for conversion. Ideal for rapid data extraction and formatting.
CSV Encoding Converter
Change CSV character encoding (e.g., UTF-8 to Shift-JIS) for better compatibility with Excel.
JSON → CSV Converter
Flatten nested objects and convert JSON arrays into high-quality CSV files.
JSON Formatter (Pretty / Minify)
Beautify JSON for better readability or minify it for high-performance data transfer.
JSON → JSON Schema Generator
Auto-generate JSON Schema from sample JSON data. Essential for API design and validation.