qsv
What it is
qsv is a CSV data-wrangling toolkit with more than 50 commands for slicing, analyzing and transforming data. Most commands process files as streams using constant memory, making the toolkit suitable for very large CSV datasets. It supports CSV, Excel, OpenDocument Spreadsheet, JSON and JSONL, DataPackage, Apache Arrow and Parquet, SQLite, and PostgreSQL. Built-in Luau and Python scripting can extend workflows, while the join, joinp and sqlp commands handle SQL and join queries without a separate SQL database. qsv is designed to interoperate with Airbyte, Airflow, Pentaho Kettle and common command-line tools. qsv pro adds a desktop graphical app for viewing and transforming spreadsheet data, plus CKAN upload and download. The Free plan costs nothing and needs no license key; spreadsheet imports are limited to 1MB. Pro costs $99.99 a month after the trial ends and includes spreadsheets larger than 1MB and 16 export formats. Input must be UTF-8 encoded.
For and against
For
- More than 50 commands for data wrangling
- Most commands use streaming and constant memory
- Supports numerous spreadsheet, data and database formats
- Built-in Luau and Python scripting
- qsv pro adds a graphical desktop app
Against
- Input must be UTF-8 encoded
- Free plan limits spreadsheet imports to 1MB
- Pro costs $99.99 a month after trial
The verdict
qsv offers broad format support and command-line processing, with scripting and SQL-style queries available. The free plan has a 1MB spreadsheet import limit, while qsv pro adds a desktop interface and larger spreadsheet support.
Who it suits
qsv suits people working with spreadsheet and structured data who want command-line data processing, scripting or SQL-style queries. qsv pro may suit users who prefer a graphical desktop app or need CKAN exchange.
Plans and prices
Free
Import spreadsheets up to 1MB · free recipes · 1 CKAN instance · qsv slice from Flow
Read 1 Oct 2026 · qsvpro.dathere.com
Pro
1 license key (1 device at a time) · spreadsheets larger than 1MB · 16 export formats
Read 1 Oct 2026 · qsvpro.dathere.com
Business / Enterprise
Contact us
Read 1 Oct 2026 · qsvpro.dathere.com
On the record
- Binary integrity
- qsv prebuilt binary archives are zipsigned and the self-update mechanism verifies archive integrity before updating.github.com · read 1 Oct 2026
- CKAN
- qsv pro can upload and download compatible data from CKAN instances.qsvpro.dathere.com · read 1 Oct 2026
- Desktop app
- qsv pro is a graphical desktop application for viewing and transforming spreadsheet data based on the qsv CLI.qsvpro.dathere.com · read 1 Oct 2026
- Formats
- qsv supports CSV, Excel, OpenDocument Spreadsheet, JSON/JSONL, DataPackage, Apache Arrow/Parquet, SQLite and PostgreSQL.qsv.dathere.com · read 1 Oct 2026
- Input requirement
- qsv requires UTF-8 encoded input.github.com · read 1 Oct 2026
- Integrations
- qsv is designed to interoperate with Airbyte, Airflow and Pentaho Kettle, along with common command-line tools.github.com · read 1 Oct 2026
- Large datasets
- Most qsv commands are streaming, use constant memory and can process arbitrarily large CSV files.github.com · read 1 Oct 2026
- Performance
- qsv is described as blazing fast, pleasingly parallel and CPU-accelerated, built with Rust and Polars.qsv.dathere.com · read 1 Oct 2026
- Purpose
- qsv is a CSV data-wrangling toolkit with 50+ commands for slicing, analyzing and transforming data.qsv.dathere.com · read 1 Oct 2026
- Scripting
- qsv includes built-in support for Luau and Python scripting.qsv.dathere.com · read 1 Oct 2026
- Security
- The qsv codebase is automatically audited for security vulnerabilities with DevSkim, cargo audit and Codacy GitHub Actions workflows.github.com · read 1 Oct 2026
- SQL
- The join, joinp and sqlp commands let users run complex SQL and join queries without a SQL database.qsv.dathere.com · read 1 Oct 2026
- Support
- qsv pro users can request support by creating a ticket on the support site.qsvpro.dathere.com · read 1 Oct 2026
