Data tools
Browser-based tools for CSV, Parquet and JSON, plus SQL on both. Tools are released one at a time; those marked “Coming soon” are not available yet.
CSV Tools
View, profile, clean and convert CSV files locally.
- CSV ViewerOpen large CSV files in a fast, searchable, sortable table.
- CSV ProfilerColumn-by-column statistics computed from your actual data.
- CSV CleanerTrim, deduplicate, rename and filter, then export a cleaned CSV.
- CSV to ParquetComing soonConvert CSV to compressed, typed, columnar Parquet.
- CSV to JSONComing soonConvert CSV rows to a JSON array or newline-delimited JSON.
- CSV to SQLComing soonGenerate CREATE TABLE and INSERT statements from a CSV file.
Parquet Tools
Open, inspect and convert Parquet files without uploading them.
- Parquet ViewerInspect the schema, rows and real file structure of a Parquet file without uploading it.
- Parquet ProfilerColumn statistics and real file structure for Parquet files, computed locally.
- Parquet to CSVComing soonConvert a Parquet file to CSV locally.
- Parquet to JSONComing soonConvert a Parquet file to JSON or newline-delimited JSON.
JSON Tools
Format, explore, flatten and convert JSON.
- JSON ViewerValidate, search and explore any JSON document as a virtualized tree.
- JSON FormatterPretty-print or minify JSON with clear, position-aware validation errors.
- JSON FlattenerFlatten nested JSON into flat key paths, previewed before export.
- JSON to CSVConvert JSON arrays to CSV, flattening nested fields.
- JSON to ParquetConvert JSON records to typed Parquet, with nested structure preserved.
SQL Tools
Run SQL directly against CSV and Parquet files with DuckDB.
Data Quality
Find potential problems in a dataset and get suggested fixes.