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> Turn JSON arrays and API payloads into spreadsheet-ready CSV locally.
> Map columns, flatten nested objects, and download clean exports without uploads.
JSON parsing and CSV generation happen in your browser. No API response or export data is uploaded to our server.
// CSV output appears here...
CSV to JSON
Convert CSV exports into clean JSON locally, inspect headers and rows, and copy or download API-ready output without uploads.
JSON Formatter
Validation, formatting and syntax highlighting for JSON.
JSON Schema AI
Generate JSON Schema draft 2020-12 with validation constraints for API and data pipelines.
Base64
Encode and decode text to/from Base64 format with UTF-8 support.