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jless

jless is a powerful command-line tool designed for reading, exploring, and searching through JSON data.

Free tierPrice verified 2026-09-29Visit site ↗
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Our verdict

Who it's for

A command-line JSON viewer for efficient data exploration and debugging.

Who should look elsewhere

Limited to command-line interface, no GUI option.

Pros

  • +Enhances readability of JSON data with pretty printing and syntax highlighting.
  • +Efficient navigation and exploration with Vim-inspired commands.
  • +Powerful search capabilities using regular expressions.
  • +Useful for debugging APIs and inspecting request payloads.
  • +Easy installation via various package managers on supported OS.

Cons

  • −Limited to command-line interface, no GUI option.
  • −Currently only supports macOS and Linux.
  • −Requires Rust toolchain for installation from source.

Key features

  • ✓Command-line interface
  • ✓Pretty print JSON
  • ✓Syntax highlighting
  • ✓Expand and collapse Objects and Arrays
  • ✓Vim-inspired navigation commands
  • ✓Full-text regular-expression based search
  • ✓Search within long string values
  • ✓Jump between values for the same Object key

Pricing

PlanPriceBillingNotes
jless—monthPretty print JSON; Syntax highlighting; Expand and collapse Objects and Arrays

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