Søjledata-fremviser
Forhåndsvis søjledatafiler (Parquet, Avro, Arrow) med skema og rækker. Lokal rendering.
About Columnar Data Viewer
Preview columnar data files including Apache Parquet (.parquet) and Avro (.avro). Inspect schema and browse rows directly in the browser.
How to Use
Upload or drag in a .parquet, .avro, or .arrow file. The viewer parses the file locally with pure-JavaScript libraries (hyparquet, avsc) and renders the schema and sample rows.
Privacy
Data files are parsed entirely in your browser. Nothing is uploaded to a server.
▶Which formats are supported?
Apache Parquet (.parquet), Avro (.avro), and Arrow (.arrow/.feather). Compressed or partitioned datasets are read as single files.
▶Why are only some rows shown?
Columnar files can be very large, so the viewer loads a sample of rows for performance. The schema and statistics reflect the full file, but browsing is paginated.
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