dkit

A unified CLI to convert, query, and explore data across formats.

Features

• Format conversion — JSON, CSV, YAML, TOML, XML, MessagePack, Parquet, Excel, SQLite, and more
• Query engine — Filter, sort, aggregate, and transform with a built-in query language
• Table preview — View any data file as a formatted table in the terminal
• File diff — Compare two data files, even across different formats
• Statistics — Count, average, percentiles, histograms
• Schema inspection — Visualize data structure as a tree
• Validation — Validate data against JSON Schema
• Sampling — Random, systematic, or stratified sampling
• Flatten / Unflatten — Convert nested structures to flat keys and back
• Streaming — Chunk-based processing for large files
• Watch mode — Auto re-run on file changes

Installation

# From crates.io
cargo install dkit

# With cargo-binstall
cargo binstall dkit

# From source
git clone https://github.com/syangkkim/dkit.git
cd dkit && cargo install --path dkit-cli

Pre-built binaries are available on GitHub Releases.

Quick Start

# Convert JSON to CSV
dkit convert data.json --to csv

# Query nested data
dkit query config.yaml '.database.host'

# Filter and aggregate
dkit query sales.csv '.[] | where region == "US" | sum revenue'

# Preview as a table
dkit view users.csv --limit 10 --border rounded --color

# Compare two configs
dkit diff config_dev.yaml config_prod.yaml

Supported Formats

Documentation

See the full README for detailed usage, query syntax, and more.

License

MIT