Alternatives to Socket.IO
Compare Socket.IO alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Socket.IO in 2024. Compare features, ratings, user reviews, pricing, and more from Socket.IO competitors and alternatives in order to make an informed decision for your business.
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1
SignalWire
SignalWire
An elastic communications cloud with advanced APIs for voice, SMS and video designed by the original geeks of software-defined telecom. When your audience is large, your brand is premium, and you won't settle for janky video conferencing UX, you want this. Real time, granular control over call flows, routing, and codecs. 300% more responsiveness than you get with REST. If you use AI in your voice apps, you just found your new favorite API. If you're more comfortable with REST than WebSockets or already use TwiML, these APIs are like TwiML...if TwiML suddenly knew Kung Fu. The SMS API makes it easy to move your expensive SMS traffic to SignalWire and cut your billio 50-80% in the process. Launch and scale communication products on infrastructure built for this decade and the next rather than running aground on the limitations of 2010s-era SaaS. Persistent, bi-directional connections between your video and voice apps and our infrastructure means 300% more responsiveness. -
2
ejabberd
ProcessOne
ejabberd XMPP server simplifies critical administration and key usage statistics through an easy-to-use and customizable management module for administrators. ejabberd XMPP server statistics module is compatible with Nagios, the industry standard IT infrastructure monitoring tool. ejabberd XMPP server supports more interaction with the browser and the web app, facilitating real-time messaging. The use of WebSockets provides the ability to seamlessly send and receive messages while a browser tab is opened. BOSH capability is provided as a fallback for XMPP server connection. ejabberd XMPP server mobile reliability layer helps manage mobile network’s disconnection, message deliveries, consistent conversation on any online device, IoT, chat server, IM service, push notification and mobile interfaces. -
3
MigratoryData
MigratoryData
Enterprises running real-time web and mobile apps struggle with latency, bandwidth, and scalability issues, which negatively impact the total cost of ownership as well as the real-time experience of their users. These issues are inherent to the traditional techniques, such as HTTP polling or long polling, employed to achieve real-time communication using web and application servers. To overcome these issues, we created MigratoryData, a real-time messaging technology leveraging the WebSockets standard, streaming data to and from users over persistent WebSocket connections in milliseconds and with minimal traffic overhead. Unlike other real-time messaging technologies, MigratoryData has been designed to scale to a large number of users. It has been benchmarked to stream real-time data to 10 million concurrent users from a single commodity server. -
4
Backbone.js
Backbone.js
Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface. When working on a web application that involves a lot of JavaScript, one of the first things you learn is to stop tying your data to the DOM. It's all too easy to create JavaScript applications that end up as tangled piles of jQuery selectors and callbacks, all trying frantically to keep data in sync between the HTML UI, your JavaScript logic, and the database on your server. For rich client-side applications, a more structured approach is often helpful. With Backbone, you represent your data as Models, which can be created, validated, destroyed, and saved to the server.Starting Price: Free -
5
AIOHTTP
AIOHTTP
Supports both client and server side of HTTP protocol, both client and server web-sockets out-of-the-box, and avoids callback hell and web-server with middlewares and pluggable routing. -
6
websockets
Python Software Foundation
An implementation of the WebSocket Protocol (RFC 6455 & 7692). websockets is a library for building WebSocket servers and clients in Python with a focus on correctness, simplicity, robustness, and performance. Built on top of asyncio, Python’s standard asynchronous I/O framework, it provides an elegant coroutine-based API. websockets is heavily tested for compliance with RFC 6455. Continuous integration fails under 100% branch coverage. websockets is built for production. For example, it was the only library to handle backpressure correctly before the issue became widely known in the Python community. Memory usage is optimized and configurable. A C extension accelerates expensive operations. It’s pre-compiled for Linux, macOS, and Windows and packaged in the wheel format for each system and Python version. websockets takes care of everything under the hood so you can focus on your application!Starting Price: Free -
7
Kestrel
Microsoft
Kestrel is a cross-platform web server for ASP.NET Core. Kestrel is the web server that's included and enabled by default in ASP.NET Core project templates. Kestrel supports HTTPS, HTTP/2 (except on macOS), Opaque upgrade used to enable WebSockets, Unix sockets for high performance behind Nginx. Kestrel is supported on all platforms and versions that .NET Core supports. Some browsers require granting explicit permission to trust the local development certificate. Project templates configure apps to run on HTTPS by default and include HTTPS redirection and HSTS support. The Kestrel web server has constraint configuration options that are especially useful in Internet-facing deployments. There's a separate limit for connections that have been upgraded from HTTP or HTTPS to another protocol (for example, on a WebSockets request). The default maximum request body size is 30,000,000 bytes, which is approximately 28.6 MB. -
8
Cowboy
99s
Cowboy is the ultimate server for the modern Web with support for Websocket, HTTP/2 and REST. Cowboy is a small, fast and modern HTTP server for Erlang/OTP. Cowboy aims to provide a complete modern Web stack. This includes HTTP/1.1, HTTP/2, WebSocket, server-sent events and Webmachine-based REST. Cowboy comes with functions for introspection and tracing, enabling developers to know precisely what is happening at any time. Its modular design also easily enables developers to add instrumentation. Cowboy is a high-quality project. It has a small code base, is very efficient (both in latency and memory use) and can easily be embedded in another application. Cowboy is clean Erlang code. It includes hundreds of tests and its code is fully compliant with the Dialyzer. It is also well documented and features a function reference, a user guide and numerous tutorials. Knowledge of the HTTP protocol is recommended but not required, as it will be detailed throughout the guide. -
9
Pusher Channels
Pusher
Pusher Channels is a hosted API which allows you to quickly and easily bring rich realtime features to your apps; from dashboards to gaming, collaborative editing, live maps and more, simplify your stack and simply integrate Pusher’s managed WebSocket connections to build the features your users expect into any web or mobile app. Whenever something changes in your system a single API call to Channels will prompt a WebSocket update so that you can instantly update the UI in your users’ apps. Whether you have one connection or millions, ultra-low latency with automatic fallback means Channels works anywhere. Pusher delivers billions of messages every month across browsers, mobile and IoT with the event-based API. Pusher manages and scales the realtime infrastructure, as a reliable and cost-effective alternative to building, maintaining and scaling in-house, so you can concentrate on your product.Starting Price: $49 -
10
Marionette
Marionette
Organize your app in terms of small Views. Marionette makes it easy to compose rich layouts out of small components. We've added tons of features from templateHelpers, to a declarative UI hash, that will keep you from ever wanting to go back. Share complex UI interactions across views. Behaviors are like mixins, without all of the pain associated with property collision. Decoupled communication between your application components with a powerful messaging system. Write classes with the same API as your views. Marionette Objects support features like extend, events, initialize, and more. Marionette community is home to the most welcoming and vibrant discussions in the Backbone ecosystem. Stop spending more time thinking about your framework than your app. Marionette will never get in the way of you and your code.Starting Price: Free -
11
Voca
Voca
The Voca library offers helpful functions to make string manipulations comfortable: change case, trim, pad, slugify, latinise, sprintf'y, truncate, escape and much more. The modular design allows to load the entire library, or individual functions to minimize the application builds. The library is fully tested, well documented and long-term supported. Provides the complete set of functions to manipulate, chop, format, escape and query strings. Voca is compatible with ES2015 modules to import the entire library.Starting Price: Free -
12
jsPlumb Toolkit
jsPlumb
jsPlumb Toolkit is a Javascript diagramming library that allows you to rapidly create complex applications featuring visual connectivity without having to build any of the boring stuff: the Toolkit provides pan/zoom, a minimap widget, automatic layouts, data binding, path finding, and much, much more. The Toolkit offers deep integration with major frameworks/libraries such as Angular, React, Vue and Svelte. Clients love the incredible flexibility of the Toolkit. As one of our clients said recently: The customization for nodes and groups makes it easy to re-skin jsPlumb to look any way you want. UI/UX designers can let their imagination run wild because jsPlumb visual configuration is quite simple to manage.Starting Price: $990 -
13
Multiple.js
Multiple.js
An experiment in sharing background across multiple elements using CSS. If you want to accomplish a "background sharing across multiple elements" effect in HTML/CSS without any coordinates processing by JavaScript, Multiple.js is the answer. Note that icons and text at lighter layers have gradient-color from darker layers, creating the illusion of an underlying violet layer. In addition to that, layers pass the background image (girl) with equal transparency so that layers can not be superimposed on each other. All these things can be implemented in CSS. Add a gap between elements to make sure that the background remains in the same position. Toggle background image/gradient to get idea how it looks. Miss random layers to make sure that elements are independent. Expands background to viewport's size and displays in every element appropriate chunk, exactly what is needed! Background can be successfully expanded to full viewport size.Starting Price: Free -
14
WebDataRocks
WebDataRocks
WebDataRocks is a simple free JS library for creating functional and easy-to-use pivot tables. It can be used with Angular, Vue, React or any other framework. Free Flexible in customization JavaScript based client-side component Loads 1MB of JSON or CSV data files Full set of enterprise features Integration with 3rd party charting libraries Full set of enterprise features Features like filtering, sorting, grouping, conditional and number formatting, calculated values, totals are available for efficient work with your data. It supports printing or exporting web report to PDF, Excel or HTML with just one click. Ready-to-use modern UI The tool offers a classy spreadsheet-like interface optimized both for browsers and apps. All principles of reliability and excellent user experience are already implemented in this web reporting tool.Starting Price: Free -
15
Chart.js
Chart.js
Simple yet flexible JavaScript charting for designers & developers. Layout boxes can be stacked and weighted in groups. A secondary title plugin with all the same options as the main title. Line segments can be styled by any user-defined criteria. Transitions of every property in every element can be configured individually and independently. Numerous performance enhancements have been introduced. Mix and match bar and line charts to provide a clear visual distinction between datasets. Plot complex, sparse datasets on date time, logarithmic, or even entirely custom scales with ease. Out of the box stunning transitions when changing data, updating colors, and adding datasets. Chart.js is a community-maintained project, contributions welcome! Visualize your data in 8 different ways, each of them animated and customizable. Redraws charts on window resize for perfect scale granularity. Includes new chart axis types.Starting Price: Free -
16
Preact
Preact
Preact provides the thinnest possible Virtual DOM abstraction on top of the DOM. It builds on stable platform features, registers real event handlers and plays nicely with other libraries. Most UI frameworks are large enough to be the majority of an app's JavaScript size. Preact is different: it's small enough that your code is the largest part of your application. That means less JavaScript to download, parse and execute - leaving more time for your code, so you can build an experience you define without fighting to keep a framework under control. Preact is fast, and not just because of its size. It's one of the fastest Virtual DOM libraries out there, thanks to a simple and predictable diff implementation. We automatically batch updates and tune Preact to the extreme when it comes to performance. We work closely with browser engineers to get the maximum performance possible out of Preact.Starting Price: Free -
17
Screenfull.js
Screenfull.js
Simple wrapper for cross-browser usage of the JavaScript Fullscreen API, which lets you bring the page or any element into fullscreen. Smoothens out the browser implementation differences, so you don't have to. If you cannot use ESM or need to support older browsers without using transpilation, use version 5.2.0. Only 0.7 kB gzipped. Also available on cdnjs (older version). Safari is supported on desktops and iPad, but not on iPhones. This is a limitation in the browser, not in Screenfull. Fullscreen the page or fullscreen an element. Hide the navigation user interface on mobile devices. Fullscreen an element with jQuery and toggle fullscreen on an image with jQuery. Detect fullscreen change, remove listeners, detect fullscreen errors, and fullscreen elements with Angular.js. Keep in mind that the browser will only enter fullscreen when initiated by user events like click, touch, or key.Starting Price: Free -
18
fullPage.js
fullPage.js
fullPage.js is actively maintained and community-driven. Proud of being the most complete framework of its kind. Trusted by the most innovative companies. Working in modern and old browsers too, even IE 9! Make a beautiful site for all, not just a few! fullPage.js is designed to be easy to use and customize. It includes tens of examples, great documentation, and both community and personal support. Designed for mobiles and tablets, totally responsive. Because not only kids like to grab things. Fullpage.js provides extensions that you can use to enhance its already amazing behavior! Create a water-like transition when scrolling sections and slides. You can also use different CDNs and services like npm and bower. You can choose between the annual payment subscription and the one-time payment. Annual subscriptions include free updates for the next 12 months. One-time payments include free updates until a major version.Starting Price: $12 per year -
19
Sencha Ext JS
Sencha
Sencha Ext JS is a comprehensive JavaScript application framework for building feature-rich, cross-browser-compatible web and mobile applications. It includes a library with 140+ high-performance customizable components, a set of tools and a powerful UI Framework. Key Features Rich UI Components – Includes a variety of pre-built UI elements such as grids and trees, menus and toolbars, forms and buttons, etc. Cross-platform compatibility - Supports major desktop and mobile web browsers including IE Firefox Chrome Safari and Opera. Data Packages – Includes data components to interact with various data sources including JSON, XML and database connections. Theming and Skinning - Allow easy skinning and theming of the UI with CSS. Development Tools - Includes an extensive set of development tools including a visual designer and debugger. Large Community - Has an active and large community of developers who provide support, extensions, etc.Starting Price: $1,295 one-time payment -
20
JsPHP
JsPHP
The free open-source JsPHP library. The JsPHP website is a 100% free community resource that provides a collaborative platform and web-based Integrated Development Environment (IDE) for building an open-source JavaScript library called JsPHP that provides an implementation of the PHP API for JavaScript environments. An Integrated Development Environment (IDE) is a tool for writing computer programs, and that's what the JsPHP website is a tool for creating and testing software. In the JsPHP IDE registered users can edit the JavaScript functions in the JsPHP library and can also write code to test that those functions are working properly or to test how well those functions perform (how fast they run when they are executed on the computer). If you're just starting out with learning JavaScript then helping out at JsPHP is the perfect way for you to get started because we have lots of beginner-level work that needs to be done that you could help us with.Starting Price: Free -
21
Tornado Web Server
Tornado
Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to use Tornado’s own interfaces (such as tornado.web) directly instead of using WSGI. In general, Tornado code is not thread-safe. Tornado is integrated with the standard library asyncio module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio can be mixed freely with Tornado. -
22
Infura
Infura
Infura's world-class infrastructure will ensure your decentralized application scales to meet your user demand. Connect your app immediately with our instant access APIs. We support JSON-RPC over HTTPS & WebSocket interfaces, providing request and subscription-based connections. Start using Infura with a single URL. Our 24/7 team of experts is ready to handle all network changes and upgrades so you can focus on building your applications. We believe in a future powered by decentralized networks and protocols. We provide world-class infrastructure for developers so you can spend your time building and creating. You can find valuable insights, add applications, and more through our Infura dashboard. Need help or have questions? Get answers in our active community, up-to-date status page, or dig directly into our expanding library of documentation.Starting Price: $50 per month -
23
Check24-7.in
Check24-7.in
With the 24-7Connect interface you enable us to communicate with your PMS data. Web sockets can also be used instead of webhooks. The web socket protocol is used for the transport, the interface remains unchanged. -
24
AliwareMQ for IoT
Alibaba Cloud
AliwareMQ for IoT is a message service that is designed specifically for IoT and mobile Internet (MI). The service can be applied to multiple scenarios, including live streaming, financial payments, smart catering, instant messaging, mobile apps, smart devices, and Internet of Vehicles. Message Queue for MQTT supports multiple protocols including MQTT and WebSocket to enable two-way communications between devices and the cloud. In this way, messages can be exchanged in multiple business models including C2C, C2B, and B2C to achieve Internet of Everything. -
25
HarperDB
HarperDB
HarperDB is a distributed systems platform that combines database, caching, application, and streaming functions into a single technology. With it, you can start delivering global-scale back-end services with less effort, higher performance, and lower cost than ever before. Deploy user-programmed applications and pre-built add-ons on top of the data they depend on for a high throughput, ultra-low latency back end. Lightning-fast distributed database delivers orders of magnitude more throughput per second than popular NoSQL alternatives while providing limitless horizontal scale. Native real-time pub/sub communication and data processing via MQTT, WebSocket, and HTTP interfaces. HarperDB delivers powerful data-in-motion capabilities without layering in additional services like Kafka. Focus on features that move your business forward, not fighting complex infrastructure. You can't change the speed of light, but you can put less light between your users and their data.Starting Price: Free -
26
Eclipse Jetty
Eclipse Foundation
Jetty provides a web server and servlet container, additionally providing support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations. These components are open source and are freely available for commercial use and distribution. Jetty is used in a wide variety of projects and products, both in development and production. Jetty has long been loved by developers due to its long history of being easily embedded in devices, tools, frameworks, application servers, and modern cloud services. Full-featured and standards-based. Open source and commercially usable, flexible and extensible, small footprint, embeddable, asynchronous, enterprise scalable, and dual-licensed under Apache and Eclipse. Large clusters, such as Facebook Presto. Cloud computing, such as Google AppEngine. With the direction of Java and the JakartaEE project (formerly JavaEE) in 2020, the current recommended version of Jetty for use depends upon the servlet API version, desired licensing, etc. -
27
Mongoose
Mongoose
Mongoose turns a software product, a device or appliance into a web server, accessible by a browser. One of the most common use cases is to use Mongoose to add a Web-accessible control panel for a device. Ready-to-go examples and tutorials for common functionalities like authentication, live logs, video streaming. Using Mongoose, it is easy to create various API to control your device or application remotely, via browser, mobile phone, or automation tools. We have created an extremely memory-efficient, easy-to-use, MIT-licensed JSON library to use together with Mongoose. Real-time, full-duplex communication over MQTT or Websocket. Exchange plain data, or wrap data into JSON to use JSON-RPC! Mongoose turns a software product, a device or appliance into a web server, accessible by a browser. Upload device data to a cloud server of your choice. Use a 3rd party cloud provider, or spin your own. -
28
PENDAX
Compendium
A Javascript library allowing simplified interaction with advanced commands on a growing list of cryptocurrency exchanges and financial applications. Simplified exchange commands and interoperability. Our underlying high-frequency trading engine, PENDAX, is available for all developers, traders, financial analysts, and data scientists to build custom integrations on. It provides simple access to a variety of different use cases revolving around trading and data deployments. Current Feature Summary - Full Public and Private HTTP REST APIs for all supported platforms are integrated in an efficient manner for secondary deployment. - Aggregated commands are normalized between systems in the unified package making PENDAX extremely easy to integrate. - WebSocket and live data capabilities are included for all supported exchanges. - No subscription is needed for a "Professional" version of PENDAX.Starting Price: Free -
29
SurrealDB
SurrealDB
SurrealDB offers a dynamic and adaptable platform for business. With an integrated suite of cutting-edge database solutions, tools, and services, SurrealDB empowers your workforce to discover innovative answers using products meticulously crafted to meet their requirements. The query language in SurrealDB looks and works similarly to traditional-SQL, but allows for querying over time-series and connected graph data. SurrealQL is an advanced query language, with programming language functionality, that allows developers or data analysts to work with SurrealDB in the ways they choose. Connect directly to SurrealDB from any end-user client device. Run SurrealQL queries directly within web-browsers, ensuring that users can only view or modify the data that they are allowed to access. Highly-performant WebSocket connections allow for efficient bi-directional queries, responses and notifications. -
30
CloudMQTT
CloudMQTT
CloudMQTT is a perfect solution for "Internet of Things" messaging between low-power sensors or mobile devices such as phones, embedded computers, or microcontrollers like the Arduino. CloudMQTT automates every part of the setup and running of your hosted mosquitto message broker. Let your team focus on what they do best - building your product. Leave server management and monitoring to the experts. Use CloudMQTT WebSocket client to view messages pushed from your device to the browser or publish messages from the browser to your device. This is ideal for testing and debugging since you can display live information from a device or sensor in real-time. Invite your co-workers and you will separate CloudMQTT accounts, but manage the same set of instances. You decide where to send notifications and who pays the bills.Starting Price: $5 per month -
31
Amazon MQ
Amazon
Amazon MQ is a managed message broker service for Apache ActiveMQ that makes it easy to set up and operate message brokers in the cloud. Message brokers allow different software systems–often using different programming languages, and on different platforms–to communicate and exchange information. Amazon MQ reduces your operational load by managing the provisioning, setup, and maintenance of ActiveMQ, a popular open-source message broker. Connecting your current applications to Amazon MQ is easy because it uses industry-standard APIs and protocols for messaging, including JMS, NMS, AMQP, STOMP, MQTT, and WebSocket. Using standards means that in most cases, there’s no need to rewrite any messaging code when you migrate to AWS. With a few clicks in the Amazon MQ Console, Amazon MQ provisions your broker with support for version upgrades, so you can always use the latest version that Amazon MQ supports. Once you configure your broker, your applications can produce and consume messages. -
32
MaticVigil
MaticVigil
We allow you to build full-stack apps on Ethereum via Matic Network, without learning protocol specifics. Our docs cater to every developer, all the way from beginners to those already building apps via web3, and provide examples to build upon. Smart contracts are quickly deployed through our system and the resulting Open API spec along with webhook and WebSockets are instantly available to start testing. Supercharge and extend your blockchain apps with our integration services over Websockets, Webhooks, Zapier, Slack, IFTTT. The possibilities are endless. MaticVigil is an API gateway on top of the Matic-network EVM-compatible sidechain. It enables a developer to write code to interact with value transfers and transactions on Matic as if it were talking to just another web service REST API over HTTP. You can focus on coding "business logic" without worrying about the "protocol logic" behind the scenes. -
33
API Tester
API Tester
API Tester is a completely free mobile app available on iOS, Android, macOS, and watchOS. It is a functional API testing tool that allows users to complete compound tasks on any device. - Test any API on the go: REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS. - GET, POST, PUT, PATCH, DELETE, etc. HTTP request methods are supported. - Perform the API calls with any kind of request data encoding and transfer type. - Import collections from Swagger, Postman, and YAML, or import requests using cURL, as well as export created requests via link or cURL. - Use a powerful GraphQL editor with full-scale experience. - WebSocket testing tool is available: handles connection and message exchange via WS or WSS. The API Tester mobile app allows you to get the job away from your workstation. Save time, work from anywhere!Starting Price: Completely free -
34
CrossTower
CrossTower
CrossTower is on a mission to mainstream digital asset investing and trading. We believe that bringing the advanced trading tools, rigorous security, compliance safeguards, price efficiencies, and support models from the global equity markets into digital assets will make this a reality. CrossTower’s team members have spent their careers building and running traditional trading platforms and are intimately aware of the requirements of the institutional market. Access market data and trading services through our FIX, RESTful, and WebSocket APIs and achieve lightning fast trading on a low-latency high-throughput platform via co-location. Track multiple markets at a time and personalize the layout of our trading terminal through deep customization options and multi-screen support. We offer tight bid-ask spreads, deep order books, best-in-class risk management, and high-quality trade execution. -
35
Apache Tomcat
Apache
The Apache Tomcat® software is an open source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications. These specifications are part of the Jakarta EE platform. Apache Tomcat software powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations. Some of these users and their stories are listed on the PoweredBy wiki page. The Apache Tomcat Project is proud to announce the release of version 10.0.10 of Apache Tomcat. This release implements specifications that are part of the Jakarta EE 9 platform. -
36
Three.js
Three.js
Three.js is a JavaScript 3D library. The aim of the project is to create an easy-to-use, lightweight, cross-browser, general-purpose 3D library. The current builds only include a WebGL renderer but WebGPU (experimental), SVG and CSS3D renderers are also available in the examples. To actually be able to display anything with three.js, we need three things, scene, camera, and renderer, so that we can render the scene with the camera. In addition to the WebGLRenderer, Three.js comes with a few others, often used as fallbacks for users with older browsers or for those who don't have WebGL support for some reason. Create a loop that causes the renderer to draw the scene every time the screen is refreshed (on a typical screen this means 60 times per second). Anything you want to move or change while the app is running has to go through the animate loop. You can of course call other functions from there.Starting Price: Free -
37
Sceyt
Sceyt
Fast, reliable chat features - deployed swiftly, enhancing engagement and user connectivity. Sceyt’s unique binary messaging protocol is like an express lane for your messages. Combining Protobuf and Websockets technology results in super low-latency. Conversations flow smoothly and responses are near-instant. Whether you want to offer financial advice, connect users with healthcare professionals, or provide ecommerce customer service, Sceyt is versatile enough to handle all your app chat use cases. Sceyt gives you a control room to manage your chat features. The easy-to-use dashboard lets you assign different permissions to team members. In-depth stats give you a bird’s eye view of user interaction. Plus, a range of moderation tools make sure your app remains a safe space for users.Starting Price: $59 per month -
38
Barchart OnDemand
Barchart
Our flexible cloud-based APIs make getting powerful data into your applications, workflows, and products simple. Through Amazon Web Services we maintain multiple data centers throughout the United States, ensuring optimal reliability and redundancy. Through server virtualization and built-in security procedures we can scale up our institutional ready services in a matter of seconds. We support both GET and POST requests as well as SOAP. Data can be delivered in multiple formats including XML, JSON and CSV, and can be streamed over WebSockets. We’re compatible with any operating system, such as Windows, Linux, iOS or Android, and any programming language, such as Python, Java, PHP, R, or ASP.NET. We embrace the cloud but also maintain physical data centers for specific client needs. Through our Equinix-based facilities we cater to low latency requirements and provide a true physical back-up. -
39
Million.js
Million.js
Million.js introduces a novel "block" virtual DOM. It's significantly faster than React's virtual DOM, as it diffs data instead of the DOM. Million.js uses a custom compiler that automatically optimizes your React components on the server. Tired of learning new frameworks and big migrations? Million.js ships a drop-in automatic mode to make your React apps faster, without any code changes. We use a novel approach to the virtual DOM called the block virtual DOM. You can read more on what the block virtual DOM is with virtual DOM, back in block and how we make it happen in React with behind the block(). We are actively working on removing these limitations. It's also important to note that your application may not need Million.js – if your app is not UI heavy, you may not see much performance improvement. -
40
JavaScript InfoVis Toolkit
SenchaLabs
The JavaScript InfoVis Toolkit provides tools for creating interactive data visualizations for the web. The best way to start is to take a look at the demos page. Each demo has a See the Example Code link that takes you to the code for that example. The actual library code is included in the HTML file by building the lib each time with only the needed requirements taken from the name of the visualization and the build.json file. The required library code is built by the build.py file. In order to create a new visualization you need to set up the server environment to include test JavaScript files for your new visualization and also you need to add the new visualization files into the Source folder.Starting Price: Free -
41
CoinAPI
CoinAPI
All cryptocurrency exchanges integrated under a single API. CoinAPI is a platform which provides fast, reliable and unified data APIs to cryptocurrency markets. We are a high-quality, one-stop-solution market data provider for cryptocurrency markets. All CoinAPI data is standardized. Market symbol details and asset codes are double-checked by real humans to ensure maximum quality. Our data is delivered to you on-demand using well-documented and simple HTTP RESTful API in JSON, XML or CSV formats. For more demanding integrations requiring real-time market data streaming, we have access through WebSocket and FIX protocols. We provide helper libraries for the most popular programming languages, so you can focus on the most important aspects instead of wasting time connecting the pieces together. We provide helper libraries for the most popular programming languages, so you can focus on the most important aspects instead of wasting time connecting the pieces together.Starting Price: $79 per month -
42
JointJS
client IO s.r.o.
JointJS is a powerful JavaScript diagramming library that helps developers and companies of any size build advanced visual and No-Code applications. It comes in two versions: open-source (JointJS) with limited features and professional (JointJS+), which extends the features of JointJS and offers a wide range of customizable features, ready-to-implement demo applications and white-glove support.Starting Price: $2990 per developer -
43
NativeScript
NativeScript
Improve OSS repository management using multiple monorepo setups. Improved onboarding: tutorials for all flavors, linked from the home page. Improved Dialog handling with core-provided abstract APIs. Core: split out architectural level packages for advanced use-cases and scalability. This page will walk through installing everything you need to build your first NativeScript app. Setting up the Android development environment can be daunting if you are new to Android development, however following the next steps carefully will get you up and running in no time. Setting up the Android development environment can be daunting if you are new to Android development, however following the next steps carefully will get you up and running in no time.Starting Price: Free -
44
Vue.js
Vue.js
Builds on top of standard HTML, CSS and JavaScript with intuitive API and world-class documentation. Truly reactive, compiler-optimized rendering system that rarely requires manual optimization. A rich, incrementally adoptable ecosystem that scales between a library and a full-featured framework. Vue is a JavaScript framework for building user interfaces. It builds on top of standard HTML, CSS and JavaScript, and provides a declarative and component-based programming model that helps you efficiently develop user interfaces, be it simple or complex. Vue extends standard HTML with a template syntax that allows us to declaratively describe HTML output based on JavaScript state. Vue automatically tracks JavaScript state changes and efficiently updates the DOM when changes happen. Vue is a framework and ecosystem that covers most of the common features needed in frontend development. -
45
jQuery
jQuery
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. If you're new to jQuery. Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string. All the aspects of the API that were deprecated in the corresponding version of jQuery. These methods get and set DOM attributes of elements.Starting Price: Free -
46
Choreographer-js
Choreographer-js
A simple library to take care of complicated animations. You can also add custom functions that do non-CSS animations! Install and save to your package.json, and include it in your Javascript. Brew up some instant scroll animations. Animate based on scroll location, animate based on mouse X location and create multiple animations based on mouse X location. Now you can create an instance of Choreographer, and run the animations based on whatever measurement floats your boat (ex. scroll position, mouse position, timestamp, whatever). The easiest way to understand how this all works is to check out the examples. Bugs will occur if you overlap animation ranges that affect the same style properties! There are two built-in animation functions available, called 'scale' and 'change'. Progress is what allows for progressive scaling of values (ex. smooth fading of opacity, 2d translation, etc.) If the value is between 0 and 1, that means you are within a range.Starting Price: Free -
47
Modernizr
Modernizr
Modernizr tells you what HTML, CSS, and JavaScript feature the user’s browser has to offer. It’s a collection of superfast tests, or “detects” as we like to call them, which run as your web page loads, then you can use the results to tailor the experience to the user. All web developers come up against differences between browsers and devices. That’s largely due to different feature sets, the latest versions of the popular browsers can do some awesome things which older browsers can’t, but we still have to support the older ones. Modernizr makes it easy to deliver tiered experiences and make use of the latest and greatest features in browsers that support them, without leaving less fortunate users high and dry. Modernizr is a small piece of JavaScript code that automatically detects the availability of next-generation web technologies in your user's browsers. Modernizr uses feature detection to allow you to easily tailor your user's experience.Starting Price: Free -
48
Underscore.js
Underscore.js
Underscore is a JavaScript library that provides a whole mess of useful functional programming helpers without extending any built-in objects. Underscore provides over 100 functions that support both your favorite workaday functional helpers like map, filter, and invoke, as well as more specialized goodies like function binding, javascript templating, creating quick indexes, deep equality testing, and so on. You may choose between monolithic and modular imports. The project is hosted on GitHub. You can report bugs and discuss features on the issues page or chat in the Gitter channel. Underscore 1.x is backward compatible with any engine that fully supports ES3, while also utilizing newer features when available. Collection functions work on arrays, objects, and array-like objects. We have recent confirmation that the library is compatible with Adobe ExtendScript. There is support code present for IE 8, which we will retain in future Underscore updates.Starting Price: Free -
49
Bideo.js
Bideo.js
Bideo.js is a JS library that makes it super easy to add fullscreen background videos. Fullscreen HTML5 background video for the web. Want to play a video in the background of a container or body itself? This plugin will help you do exactly that. The video element in use will automatically adapt to the container's dimensions. It will also resize as the browser window resizes. The plugin doesn't support any overlay as it is easy to implement that with plain HTML/CSS in your code. Video might take a few seconds to load, especially because the sources are added via JS which is something you'll load after the DOM's loading. Until then, you may want to show a video cover, which will be the same as the first frame or the video (or some other image). The support for this is not in the plugin as it's fairly simple to achieve this via just HTML/CSS (just like overlays).Starting Price: Free -
50
WinJS
WinJS
Microsoft is committed to making sure that WinJS continues to run for existing customers. At this time we don't have plans to invest in new features or feature requests. Bug fixes will be limited to correcting substantial issues that are blocking customer deployments. We may also consider bug fixes to help our customers maintain their existing WinJS-based apps. You can contribute by reviewing and sending feedback on code checkins, suggesting and trying out new features as they are implemented, submitting bugs and helping us verify fixes as they are checked in, as well as submitting code fixes or code contributions of your own. Note that all code submissions will be rigorously reviewed and tested by the team, and only those that meet an extremely high bar for both quality and design appropriateness will be merged into the source.Starting Price: Free
