If you have used a weather app, signed in with Google, or paid for something online, you have probably used an API. An API , or application programming interface, is a defined way for one piece of software to ask another piece of software for data or an action. It is not usually a screen that people click. It is a contract that lets programs communicate predictably. This guide explains the parts you will see in everyday API documentation: clients, servers, requests, responses, endpoints, methods, status codes, authentication, and JSON. The examples use public-style data and placeholder credentials, so you can learn the pattern without exposing private information. When you need to inspect a response body, the IceNex JSON Formatter can make valid JSON easier to read. When a request fails, the IceNex HTTP Status Codes tool can help you identify what a response code generally means. API in plain language Think of an API as a set of rules for making a request. The rules t...

JSON is one of the most common formats used to exchange structured data between applications. You see it in web APIs, configuration files, browser applications, automation workflows and many developer tools. In this guide, you will learn what JSON is, how its structure works, which syntax rules matter most, and how to troubleshoot common errors with the IceNex JSON Formatter . What does JSON mean? JSON stands for JavaScript Object Notation . Despite its name, JSON is not limited to JavaScript. It is a text-based format that can be generated and read by many programming languages. The format represents structured data using objects, arrays, strings, numbers, Boolean values and null . Its syntax is intentionally compact and readable, which makes it practical for communication between a browser, an application and a server. A simple JSON object The following example describes a technology tool using a JSON object: { "name": "JSON Formatter...

← Home Terms of Use Last updated: September 17, 2026 1. Acceptance of these terms By accessing or using IceNex Tools, available at icenex.io and its related subdomains, you agree to these Terms of Use. If you do not agree with these terms, please do not access or use the website. These Terms of Use apply to the website, its online utilities, related content and features made available by IceNex Tools. 2. Description of the service IceNex Tools provides browser-based utilities and technical information for developers, IT professionals and technology users. The available utilities may include tools for JSON, Base64, UUIDs, JWTs, regular expressions, networks, browsers, devices and time conversion. Features may be added, changed, reorganized or removed as the website evolves. The current functionality is the functionality made available ...

← Home Privacy Policy Last updated: September 17, 2026 1. About this policy This Privacy Policy explains how IceNex Tools handles information when you visit and use our online utilities available at icenex.io and its related subdomains. IceNex Tools provides browser-based utilities for developers, IT professionals and technology users, including tools for JSON, Base64, UUIDs, JWTs, regular expressions, networks, browsers, devices and time conversion. 2. Information entered into the tools Many IceNex Tools utilities are designed to process information locally in your browser. Examples include the JSON Formatter, Base64 Encoder and Decoder, UUID Generator, JWT Decoder, Regex Tester, timestamp converters, CIDR and subnet calculators, and browser or device information tools. For these browser-based tools, the information entered into t...

← Back to IceNex Tools Contact Have a question, suggestion, or found an issue with one of our tools? We would be happy to hear from you. Get in Touch For questions, suggestions, feedback, or technical issues, please contact us by email. Email IceNex We aim to review messages and suggestions as soon as possible. Suggestions and Feedback We are continuously working to improve IceNex Tools. If you have an idea for a new tool, a feature suggestion, or feedback about an existing tool, feel free to contact us. Technical Issues If a tool is not working as expected, please include the name of the tool and, whenever possible, a brief description of what happened. This information can help us identify and fix problems more efficiently. © 2026 IceNex Tools. All rights reserved.

← Home About IceNex Tools Practical online tools for developers, IT professionals, network engineers, system administrators, students and technology enthusiasts. What is IceNex Tools? IceNex Tools is an independent online utility platform focused on making common technology tasks easier to perform, understand and verify. The project brings practical browser-based tools together in one place so visitors can solve small technical problems without installing software or creating an account. The platform includes utilities for JSON formatting and validation, Base64 encoding and decoding, UUID generation, JWT inspection, regular expression testing, IP and network calculations, browser and device information, and timestamp conversion. How the platform is developed IceNex Tools is structured around focused utilities rather than a single complex applica...

Time Zone Converter | IceNex Tools ← Back to IceNex Tools Time Zone Converter Convert date and time between different time zones around the world. Date & Time From Time Zone To Time Zone Convert Time Use Current Time Swap Time Zones Converted Time Source Time Copy Converted Time Copy Source UTC Offset Target UTC Offset UTC Time Copy ISO 8601 Copy Time zone conversion uses the browser's built-in ...