Best Chat SDK & API Software for JavaScript

Sendbird's Chat API empowers developers to build robust messaging platforms that include functionalities such as one-on-one and group conversations, media sharing, and real-time notifications for both mobile and web applications. This API incorporates sophisticated features like message translation, search capabilities, user moderation, and spam prevention, enabling companies to craft secure and interactive messaging solutions. With Sendbird's suite of developer resources, which consists of SDKs and UI components, integrating these capabilities into applications becomes a streamlined process, significantly reducing the burden of managing operational challenges. The platform is engineered for scalability, catering to the requirements of businesses ranging from emerging startups to large multinational corporations.

MirrorFly is a custom CPaaS provider powering businesses and enterprises with real-time communication, such as instant messaging, voice calls, and video conferencing through Chat APIs and SDKs. Regardless of the use case, tech stack, and devices, MirrorFly supports brands across the world to build their own chat platform with complete customization and zero limitations. MirrorFly’s Key CPaaS Benefits: ✅ Host on Your Own Server ✅Unlimited Customization ✅ Complete Data in Your Hand ✅ 1000+ Features ✅ Custom Security (Gmail, Phone, BioMetric, etc) ✅ Upload Enlarged Files (3+ GB) ✅ Mulit-tenant Server ✅ Scale 1+ Billion Concurrent Users ✅ Free Migration & Integration ✅ Hire Your Own Dedicated Team

One Platform for Realtime Communication: A platform to build and operate real-time interactivity for web, mobile, AI/ML, IoT, and Edge computing applications Faster & Easier Deployments: SDK support for 50+ mobile, web, server, and IoT environments (PubNub & community supported) and more than 65 pre-built integrations with external and third-party APIs to give you the features you need regardless of programming language or tech stack. Scalability: The industry’s most scalable platform capable of supporting millions of concurrent users for rapid growth with low latency, high uptime, and without financial penalties.

Ably is the definitive realtime experience platform. We power more WebSocket connections than any other pub/sub platform, serving over a billion devices monthly. Businesses trust us with their critical applications like chat, notifications and broadcast - reliably, securely and at serious scale.

Enhance your applications by integrating captivating real-time voice, video, and in-app chat functionalities through ZEGOCLOUD's communication APIs. With just four lines of code, you can kickstart the process and unlock a wealth of interactive features. Utilize our comprehensive voice, video, and in-app chat SDKs to tailor the communication capabilities your users desire, allowing them to connect, share, and engage with one another at any time and from anywhere. Elevate the user experience with a diverse range of add-ons such as emotionally intelligent avatars, AI-enhanced video effects, interactive whiteboards, and much more. Ensure seamless communication quality in real-time while also gaining valuable insights into user interactions through our advanced monitoring and analytics tools, empowering you to swiftly address any challenges and perpetually enhance your offerings. ZEGOCLOUD's innovative social solutions enable you to create personalized one-on-one and group video calls, lively audio rooms, and dynamic social live streaming, fostering connections and enjoyable experiences for your users. By leveraging these tools, you can cultivate a vibrant community where users can forge lasting relationships and share memorable moments together.