+
+

Related Products

  • Paligo
    104 Ratings
    Visit Website
  • Okyline
    2 Ratings
    Visit Website
  • SurveyJS
    64 Ratings
    Visit Website
  • Crowdin
    929 Ratings
    Visit Website
  • Highcharts
    123 Ratings
    Visit Website
  • DataImpulse
    31 Ratings
    Visit Website
  • PBRS Power BI Reports Distribution
    12 Ratings
    Visit Website
  • Thinfinity Workspace
    14 Ratings
    Visit Website
  • RAD PDF
    3 Ratings
    Visit Website
  • SciSure
    299 Ratings
    Visit Website

About

ExtendsClass provides tools directly usable in a browser. It saves you from having to install add-ons to your browser in order to add features. You have at your disposal syntax validators, code formatters, testers, HTTP clients, mock server, but also a SQLite browser. These are small and easy-to-use tools that can help when you do not want to install software on your workstation. The available tools allow you to convert data (CSV, TSV, XML and JSON), compare data (Text, XML, JSON), format data (XML, JSON) and also encode and decode base 64 data.

About

SafeJSON is an all-in-one local JSON toolkit built exclusively for developers. All parsing, comparison, JWT decoding and validation runs 100% inside your browser, with zero user data uploaded to external servers. Core features include standard JSON formatter, visual JSON Diff, JWT token decoder, JSONPath query engine, and JSON Schema validator. It supports huge 50MB+ JSON files powered by Web Workers, dark mode, collapsible tree views, and one-click raw JSON export. Users can independently verify full privacy via Chrome DevTools Network panel — no API keys, tokens or confidential payloads leave your device. The core toolset is permanently free, with advanced features (Diff & JWT) available via SafeJSON Pro ($5/month or $39/year). The full codebase is fully open-source on GitHub for full audit.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Online toolbox solution for web designers and webmasters

Audience

Frontend & backend engineers, API testers, DevOps, security developers, full-stack programmers who work with JSON and auth tokens daily

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$5/month, $39
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Supported
Live Online Not Supported
In Person Supported

Company Information

ExtendsClass
extendsclass.com

Company Information

SafeJSON
Founded: 2025
United States
safejson.dev

Alternatives

Liquid Studio

Liquid Studio

Liquid Technologies

Alternatives

JSON Crack

JSON Crack

ToDiagram
HttpStatus

HttpStatus

HttpStatus.com
XMLSpy

XMLSpy

Altova
Liquid Studio

Liquid Studio

Liquid Technologies

Categories

XML Editors Supported

Categories

JSON Editors Supported

Integrations

XML Supported

Integrations

XML Not Supported
Claim ExtendsClass and update features and information
Claim ExtendsClass and update features and information
Claim SafeJSON and update features and information
Claim SafeJSON and update features and information