Browser-based data query
NexaData
Query supported CSV, JSON, and Parquet files with browser-side DuckDB-WASM when its library loads. The selected file is read in page code; no upload to a NexaTools processing API was found in the inspected implementation. Analytics and library assets still use the network, and processing capacity depends on your browser, device, and memory.
Drop your CSV, Parquet, or JSON file here
No fixed application-level file-size cap was found. Browser, device, and memory limits apply. If DuckDB-WASM is unavailable, a text fallback reads at most 15 MiB; larger files may be partial or fail, and Parquet may not work in that fallback. DuckDB-WASM and page assets may require network loading.