Tools for caching and managing data. Store and retrieve data from the cache, manage cache storage limits, and handle cache-related events.

Eg caches

Create, transform, and display images and graphics within the HTML element.

Eg createImageBitmap

Cryptographic functionality for secure communication, data protection, and key management. Generate secure random numbers, encrypt and decrypt data, and manage cryptographic keys.

Eg crypto

Handle character encoding, decoding, and binary data conversion.

Eg TextDecoder, TextEncoder

Handle events and interactions. Listen for and respond to various events, including custom events, errors, progress, and promise rejections.

Eg addEventListener

HTTP client for fetching data across a network. Retrieve resources from servers, handle responses, and manage network requests.

Eg fetch, Response, Request, Headers

File and data manipulation tools. Handle files, read data and work with binary content.

Eg File, Blob

GPU programming and rendering. Efficiently use a device’s graphics processing unit (GPU) for high-performance computations and complex image rendering.

Eg GPUDevice

Interfaces for reading, writing, seeking, and managing resources. For handling of data streams, file I/O, and console interactions.

Eg stdin, inspect

Tools for internationalization and localization. Create language-aware applications, handle date and time formatting, and adapt content for different locales.

Eg Intl

Facilitate communication between different parts of an application, allowing data exchange and coordination.

Eg BroadcastChannel, MessageChannel

Measure, analyze, and optimize application performance.

Eg performance

A set of essential interfaces and functions to interact with the browser environment. Eg handling user interactions, getting browser and device information, scheduling and canceling periodic or one-time tasks.

prompt, console

Store data locally within the browser. Manage session storage and local storage.

sessionStorage, localStorage

Manage data streams, queuing strategies, and transformations. Handle data in chunks, process large datasets, and optimize memory usage.

Eg ReadableStream, WritableStream, TransformStream

Date and time handling. Includes long-lived Workflows, calendar systems, time zones, and precise duration calculations.

Eg Temporal.Now, Temporal.PlainDate

Manipulate URLs, extract data from URLs and manage query parameters.

Eg URL

Efficiently execute computationally intensive tasks. WASM module compilation, instantiation, memory management, and interaction with imports and exports.

Eg WebAssembly.instantiate, WebAssembly.Module, WebAssembly.Instance

Enable real-time communication between clients and servers using WebSockets. Tools to create interactive and dynamic applications.

Eg WebSocket

Run script operations in background threads. Manage worker threads, communicate with workers, and handle data transfer between workers and the main thread.

Eg Worker