1M rows in 2s
Optimized parsing loads massive files without freezing. Parallel search, sort, and profiling.
Data at the speed of thought
EchoCSV
A high-performance cross-platform desktop app for opening, editing, querying, and exporting large data files. CSV, Excel, JSON, TXT, and Parquet — with embedded SQL via DuckDB. 1 million rows in under 2 seconds.
Platforms
Windows · macOS · Linux
Self-contained ~70 MB package. No runtime required. Free tier included.
Data VioletSQLDuckDBFast
Highlights
What EchoCSV does.
Embedded SQL
Write real SQL against open files using DuckDB. Filter, aggregate, join — no database needed.
Edit & export
Cell editing, regex search/replace, deduplication. Export clean results to any format.