dasel

Dasel (Data-Select) is a powerful command-line tool and library for working with structured data across multiple formats. Whether you're processing configuration files, API responses, or data pipelines, dasel provides a unified query syntax that works consistently across JSON, YAML, TOML, XML, CSV, HCL, and INI formats.

Key capabilities include:

• Multi-format support: Work with JSON, YAML, TOML, XML, CSV, HCL, and INI files using identical syntax
• Query and extract: Traverse nested structures with intuitive selectors like foo.bar or use recursive descent with ..key
• Modify in place: Update, insert, or delete values directly in files without manual parsing
• Search functionality: Find values matching specific conditions anywhere in your data structure
• Format conversion: Transform data between formats seamlessly (JSON to YAML, TOML to JSON, etc.)
• Batch operations: Apply transformations to multiple elements using expressions like each($this = $this*2)
• Script integration: Simple CLI design makes it perfect for shell scripts, automation, and data pipelines
• Go library: Import and use dasel in your Go projects for programmatic data manipulation

Whether you're a developer managing configuration files, a DevOps engineer automating infrastructure, or working with data wrangling tasks, dasel eliminates the need to learn different tools for different formats.