---
title: "Dasel Multi-Format Data Selector and Modifier"
description: "Dasel (Data-Select) is a command-line tool and Go library for querying, modifying, and transforming structured data across JSON, YAML, TOML, XML, CSV, HCL, and INI formats using a unified selector syntax. It supports format conversion between all supported types."
verification: "security_reviewed"
source: "https://github.com/TomWright/dasel"
category:
  - "Data Extraction & Transformation"
framework:
  - "Claude Code"
tool_ecosystem:
  github_repo: "TomWright/dasel"
  github_stars: 7892
---

# Dasel Multi-Format Data Selector and Modifier

Dasel (Data-Select) is a command-line tool and Go library for querying, modifying, and transforming structured data across JSON, YAML, TOML, XML, CSV, HCL, and INI formats using a unified selector syntax. It supports format conversion between all supported types.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/dasel-multi-format-data-selector-modifier/)