JSON Editor Online Alternatives

Sites and apps similar to JSON Editor Online include Grayslate, which is free and open source. Other options are JSON Crack, JSON BANG!, JSON Sage and Express Lint. JSON Viewers like JSON Editor Online are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, self-hosting and Android.

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Alternatives
JSON Editor Online alternatives page was last updated

Alternatives list

  1. Free and privacy-first online tools for developers, students, and creators — including IP lookup, Base64 decoder, JSON formatter, crontab generator and more.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  2. JSON Formatter Pro is a browser extension that helps you quickly format and validate JSON so it’s easy to read and debug. It prettifies/minifies JSON, highlights syntax, and makes it simple to inspect large JSON responses while working in APIs, web apps, and dev tools workflows.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Google Chrome
    Good alternative?
     
  3. A powerful online JSON formatter, editor and validator with multiple visualization modes including code, tree, table and graph views, making JSON debugging and manipulation effortless.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  4. CapyToolkit icon
     1 like

    CapyToolkit is a collection of 45+ free browser tools engineered to run entirely client-side. All operations execute locally via native browser APIs, Web Workers, and WASM, ensuring that data, logs, and cryptographic keys never reach an external server.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Windows
    • Online
    Good alternative?
     
  5. Free online tool to convert between various data formats including Javascript, JSON, HTTP Query String and more.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  6. A free web app providing 200+ online tools for developers, including JSON formatters, PDF mergers, code converters, data generators, and more—no signup required.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  7. Need to convert a XML file to JSON? This online converter allows you to convert between XML and JSON within few seconds. While the XML format is a markup language designed to define encoding rules for documents the JSON format is focused on human readable text to transmit data...

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  8. JSON Editor Online is a web-based tool to view, edit, and format JSON. It shows your data side by side in a clear, editable treeview and in a code editor.

    Cost / License

    • Free
    • Proprietary

    Alerts

    • Discontinued

    Platforms

    • Online
    Good alternative?
     
  9. JSON Online Viewer is a fast JSON tree visualizer. It is intended for small-to-medium sized JSON texts which are common in the online usage.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  10. JSON OS icon
     Like

    Free JSON & Markdown workbench — format, validate, diff, chart, generate types, test APIs. Runs 100% in your browser, no signup, no uploads.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    Good alternative?
     
  11. Jaxo Ai icon
     Like

    Jaxo.ai is a versatile digital toolkit, providing an extensive range of tools accessible from a single online platform. It's designed to streamline tasks across diverse categories, featuring a user-friendly interface.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  12. jless icon
     Like

    jless will pretty print your JSON and apply syntax highlighting. Use it when exploring external APIs, or debugging request payloads.

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Homebrew
    • Linux
    • Mac
    • Rust
    • NetBSD
    • FreeBSD
    • BSD
    • MacPorts
    Good alternative?
     
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