Formats and highlights JSON and JSONP with collapsible trees, indent guides, clickable URLs, and raw/parsed view toggling. Works on any page or local files without tracking or ads.
Platforms
- Windows
- Linux
- Google Chrome
Every tool you need to use JSONs, at your fingertips. All are 100% FREE and easy to use! Format, validate, convert, compare and generate JSONs with just a few clicks.Free, no signup.
Cost / License
- Free
- Proprietary (MIT)
Platforms
- Online


Cost / License
- Free
- Proprietary
Platforms
- Online

Json List is a lightweight, easy to use app that lets you open any JSON file and displays it in user-friendly list format. It supports Material You dynamic color.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Android
- F-Droid


+1
Online tool for format/indent JSON string or XML string. calculate MD5/SHA-1/SHA-256/SHA-512 hash. Online Ping/nslookup/traceroute.
Cost / License
- Free
- Proprietary
Alerts
- Discontinued
Platforms
- Online



A secure, local-first browser extension that packs essential developer utilities, JSON formatters, and JWT decoders directly into your toolbar.
Cost / License
- Free
- Proprietary
Platforms
- Online
- Google Chrome
India

Ten fast JSON and text tools that run entirely in your browser. Validate, fix, diff and convert files up to 50 MB. Nothing you paste is ever uploaded.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
India


+2
Cost / License
- Free
- Open Source
Platforms
- Linux
- GNOME

OK JSON is a native and scriptable JSON formatter on macOS. It's really fast and well-integrated with macOS.
Cost / License
- Freemium
- Proprietary (Apache-2.0)
Platforms
- Mac
United Kingdom


+1
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


+1
json formatter live - Quickly format or minify and edit JSON using keyboard shortcuts and find the app swiftly using the system-wide search after installation
Cost / License
- Free
- Open Source (AGPL-3.0)
Platforms
- Online

OmniDeck Pro is a unified, offline-first desktop powerhub designed to replace dozens of single-purpose browser tabs and scattered utilities.
Cost / License
- Freemium
- Proprietary
Platforms
- Mac
- Windows
- Linux
- Online
- Android Tablet
- Software as a Service (SaaS)
- Android
India


+7
DataLensia is a privacy-first, browser-based data toolkit that lets you visualize CSV datasets and work with JSON/NDJSON using tools like a JSON comparator, schema generator, editor, and converter — all processed locally.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online


+15
JSON Encoder Decoder is a lightweight yet powerful web-based tool designed to help developers work efficiently with JSON data. Whether you're debugging APIs, cleaning up raw JSON responses, or validating structured data, this tool simplifies the process with one-click...
Cost / License
- Free
- Proprietary
Platforms
- Online

ConvertLoom is an all-in-one file conversion and formatting tool that allows users to convert images, format JSON, beautify SQL, and more—quickly and efficiently, all online.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
ToolsMystro offers a wide range of free online tools, including text utilities, image editing, file conversion, and SEO tools, designed to simplify digital tasks efficiently.
Cost / License
- Free
- Proprietary
Platforms
- Online

Ddaverse is an all-in-one platform offering 70+ fast, lightweight, and easy-to-use online tools. It includes JSON formatting, word counting, text conversion, SIP/FD calculators, age and date tools, fake chat generation, WhatsApp messaging without saving numbers, and many more...
Cost / License
- Free
- Proprietary
Platforms
- Online
JSON Fixer is an online tool designed to save developers time by automatically fixing invalid JSON copied from logs, printed output, or other sources. Unlike traditional JSON formatters, JSON Fixer handles common issues specific to programming languages, such as Python’s None...
Cost / License
- Free
- Proprietary
Platforms
- Online
- Global

DevUtilHub provides 24+ free online developer tools including regex tester, Base64 encoder/decoder, JWT debugger, JSON formatter, hash generators, and more. All tools run entirely in your browser for maximum privacy and speed. No signup required.
Cost / License
- Free
- Proprietary
Platforms
- Online

Private online formatter, validator and converter for JSON, YAML, SQL, XML, CSV and 50+ formats. Everything runs in your browser; nothing you paste is uploaded.
Cost / License
- Free
- Proprietary
Platforms
- Online



JSONViewerTool is a free, browser-based suite of JSON utilities designed for developers, testers, and anyone working with APIs or structured data.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
India



StringFlux is a free online tool for developers to simplify string transformations like JSON escape, Base64 encode, URL encode, and more — all in one streamlined, privacy-friendly interface.
Cost / License
- Free
- Proprietary
Platforms
- Online
United States

JSONXMLKit is a free, browser-based toolkit designed to streamline the handling of structured data formats like JSON and XML. It offers a suite of utilities that allow developers, data analysts, and technical professionals to:
Cost / License
- Free
- Proprietary
Platforms
- Online
United Kingdom


+1
JSON Viewer is a native Mac app to visualize, validate and format JSON datasets in a clean and snappy interface.
Cost / License
- Free
- Proprietary
Platforms
- Mac


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