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JSONMate VS jless

Compare JSONMate VS jless and see what are their differences

JSONMate logo JSONMate

JSON tree editor, inspector and beautifier

jless logo jless

jless is a command-line JSON viewer designed for reading, exploring, and searching through JSON data.
  • JSONMate Landing page
    Landing page //
    2021-10-02
  • jless Landing page
    Landing page //
    2026-07-11

JSONMate features and specs

  • User-Friendly Interface
    JSONMate offers an intuitive and easy-to-navigate interface that allows users to interact with JSON data effortlessly.
  • Real-Time Validation
    It provides real-time validation of JSON data, helping users quickly identify and correct errors as they edit.
  • Visual Tree Representation
    Offers a visual tree representation of JSON data, which aids in understanding complex structures and hierarchies.
  • Multiple Editing Features
    Includes features like search, pretty print, and format validation, making it a comprehensive tool for JSON editing.
  • Free to Use
    JSONMate is freely accessible online, making it a cost-effective tool for users working with JSON data.

Possible disadvantages of JSONMate

  • Limited Offline Support
    As a web-based tool, JSONMate requires an internet connection, which can be limiting for users needing offline access.
  • Performance on Large Files
    May experience performance issues with very large JSON files, which can slow down the editing process.
  • Dependency on External Service
    Being an online tool, it depends on the availability and stability of the hosting service, posing a risk of downtime.
  • Lack of Advanced Features
    Compared to some desktop JSON editors, JSONMate might lack advanced features like API integration or custom scripting.

jless features and specs

  • Fast and lightweight
    jless is a command-line JSON viewer built in Rust, making it highly performant and able to handle large JSON files smoothly without significant lag.
  • Interactive navigation
    It offers vim-like keybindings for navigating JSON structures, allowing users to collapse/expand nodes, search, and jump between elements efficiently.
  • Syntax highlighting
    jless provides color-coded output for JSON keys, values, and structures, making it easier to visually parse and understand complex JSON data.
  • Search functionality
    Users can search through JSON content using text or JSONPath-like queries, which helps quickly locate specific data within large files.
  • Cross-platform support
    jless is available for macOS, Linux, and Windows, and can be installed via common package managers like Homebrew, making it accessible to a wide range of users.

Possible disadvantages of jless

  • Command-line only
    jless operates entirely in the terminal, which may be less approachable for users who prefer graphical interfaces or are unfamiliar with CLI tools.
  • Learning curve for keybindings
    Users unfamiliar with vim-style navigation may find the keybindings unintuitive at first, requiring time to learn before becoming proficient.
  • Limited editing capabilities
    jless is primarily a viewer, not an editor, so it lacks robust features for modifying or transforming JSON data directly within the tool.
  • No built-in JSON validation
    While it displays JSON well, jless does not provide detailed error messages or validation feedback for malformed JSON files.
  • Smaller community and ecosystem
    Compared to more established tools like jq, jless has a smaller user base and fewer third-party integrations or plugins.

Analysis of jless

Overall verdict

  • jless is a solid, lightweight terminal-based JSON viewer that excels at making large or deeply nested JSON files easy to explore, but it's a viewer rather than a full-featured editor, so its usefulness is scoped to inspection and navigation rather than JSON manipulation.

Why this product is good

  • Fast, responsive navigation through large JSON documents directly in the terminal
  • Vim-like keybindings make it intuitive for developers familiar with vim/less
  • Collapsible tree view helps manage deeply nested or complex JSON structures
  • Syntax highlighting improves readability compared to raw JSON dumps
  • Search functionality allows quickly finding specific keys or values
  • Lightweight and fast startup, works well even with very large files
  • Open source and actively maintained, with cross-platform support (Linux, macOS, Windows)
  • No need to leave the terminal to inspect JSON output from APIs, logs, or CLI tools

Recommended for

  • Developers who frequently work with JSON output in the terminal
  • Backend engineers debugging API responses or logs
  • DevOps/SRE professionals inspecting configuration files or structured logs
  • Command-line power users who prefer keyboard-driven, vim-style navigation
  • Anyone needing to quickly explore or search large/deeply nested JSON files without writing custom scripts

Category Popularity

0-100% (relative to JSONMate and jless)
Development
78 78%
22% 22
JSON
70 70%
30% 30
Image Optimisation
77 77%
23% 23
Developer Tools
0 0%
100% 100

User comments

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What are some alternatives?

When comparing JSONMate and jless, you can also consider the following products

JSON Editor Online - View, edit and format JSON online

jq - jq is like sed for JSON data - you can use it to slice and filter and map and transform structured...

JSONFormatter.org - Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON

JSON Crack - Visualize JSON into interactive graphs

json-log-viewer - Powerful terminal based viewer for JSON logs using ncurses.

JSONLint - JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.