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jless

Command-line JSON viewer with pretty printing, syntax highlighting, and regex search. Explore APIs and debug payloads with expandable objects and arrays.

jless is a command-line JSON viewer that makes exploring and analyzing JSON data intuitive and efficient. Whether you're debugging API responses or examining complex data structures, jless provides the tools you need to understand your JSON at any level.

Key Features:

  • Pretty printing and syntax highlighting for clear, readable JSON output
  • Expandable and collapsible objects and arrays to navigate document structure at different levels of detail
  • Vim-inspired commands for fast, keyboard-driven navigation and exploration
  • Full-text regex search to quickly locate specific data within large JSON documents
  • Cross-key searching to jump between values with matching keys across your data

Whether you're working with external APIs, debugging request payloads, or analyzing complex nested structures, jless transforms raw JSON into an interactive exploration experience. The vim-like command set makes navigation feel natural for developers familiar with terminal editors, while the search capabilities help you find exactly what you need in seconds rather than scrolling through lengthy documents.

Supported on macOS and Linux with multiple installation options including Homebrew, package managers, and direct compilation from source.

Install

Apt
$ apt-get install libxcb1-dev

Features

JSON output

Shell features

Syntax highlighting

Media

Pros

4
  • Pretty prints JSON with syntax highlighting
  • Expand and collapse objects and arrays for structure overview
  • Vim-inspired commands for efficient navigation
  • Full-text search with regular expressions

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