Description:
Like sed, awk, cut, join & sort for name-indexed data such as CSV
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Type: Formula
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Latest Version: 6.15.0@0
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Tracked Since: Oct 10, 2025
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Links:
Homepage |
formulae.brew.sh
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Category: Developer tools
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Tags:
csv
json
data-processing
cli
etl
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Install:
brew install miller
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About:
Miller is a command-line utility for processing structured text data, such as CSV, TSV, and JSON. It provides a rich set of algebraic and statistical operators, enabling users to filter, sort, aggregate, and reshape data without needing to write complex scripts. Its key value proposition is high performance and a consistent, SQL-like syntax across different file formats.
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Key Features:
- Supports multiple formats including CSV, JSON, and TSV natively
- Provides verb-based CLI syntax (filter, sort, cut, group-by)
- High-performance streaming processing for large files
- Supports complex expressions and statistical functions
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Use Cases:
- Cleaning and transforming log files or data exports
- Performing ad-hoc data analysis in the terminal
- Converting data between JSON and CSV formats
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Alternatives:
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jq
– jq is specialized for JSON, whereas Miller handles multiple text formats with a uniform syntax.
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awk
– Miller offers a higher-level abstraction for data manipulation with built-in support for record headers and formats.
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