A free, fast, and clean web-based tool to format, validate, and minify JSON. No sign-ups, no ads, and no distractions — just paste your JSON and get instant results.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
Alljson Alternatives
Sites and apps similar to Alljson include Grayslate, which is free and open source. Other options are JSON BANG!, JSON Crack, Boop and json-log-viewer. You're spoiled for choice with JSON Viewers like Alljson: we list more than 25 alternatives for Mac, Windows, Linux, Android and self-hosting.
Alternatives list
Cost / License
- Free
- Open Source
Platforms
- Online
- Self-Hosted
Visual JSON Editor is a JSON schema draft v4 based file editor for Windows: When opening a JSON file, the application auto-generates an editor GUI based on the provided JSON schema. The goal is to make JSON editing more effective and easier for users.
Cost / License
- Free
- Open Source (MIT)
Alerts
- Discontinued
Platforms
- Windows
Switzerland
quicktype generates types and helper code for reading JSON in C#, Swift, JavaScript, Flow, Python, TypeScript, Go, Rust, Objective-C, Kotlin, C++ and more. Customize online with advanced options, or download a command-line tool.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Online
- Xcode
- Visual Studio Code
- Microsoft Visual Studio
United States
+1
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.
Cost / License
- Free
- Proprietary
Platforms
- Online
India
Online Tools like Beautifiers, Editors, Viewers, Minifier, Validators, Converters for Developers: XML, JSON, CSS, JavaScript, Java, C#, MXML, SQL, CSV, Excel.
Cost / License
- Free
- Proprietary
Platforms
- Online
- India
+1
HtmlStrip is a free tool designed for web developers who need a quick and simple solution for things in their day to day work.
Cost / License
- Free
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
Online Tools like Beautifiers, Editors, Viewers, Validators for Developers: HTML, XML, JSON, CSS, JavaScript.
Cost / License
- Free
- Proprietary
Platforms
- Online
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
Germany
EU
+2
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
+2
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
JSON Sage is a free online tool that helps developers visualize, validate, format, and edit JSON data instantly. It features a clean and modern interface with both tree view and code editor view, making it easy to explore and manipulate complex JSON structures.
Cost / License
- Free
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
