hls.js

Name: hls.js
Brand: hls.js

JavaScript library for HLS playback via Media Source Extensions

softwareWeb Developmentmediastreamingjavascript

Visit Website

Our Verdict

Best for

Web developers needing customizable HLS playback in modern browsers

Skip if

Projects requiring out‑of‑the‑box DRM or legacy browser support

What is hls.js?

hls.js is an open‑source JavaScript library that enables HTML5 video elements to play HTTP Live Streaming (HLS) streams directly in browsers that support Media Source Extensions (MSE). It parses MPEG‑TS segments, handles adaptive bitrate switching, and provides a seamless playback experience without native HLS support. The library is lightweight, works in all modern browsers, and can be integrated with existing video players such as Video.js or custom UI components. It also offers extensive configuration options for low‑latency, live, and on‑demand streaming scenarios.

SpecificationsAI-estimated

deploymentSelf-hosted

open source✅ Yes

github stars16,868

api available✅ Yes

support optionsGitHub Issues

key integrationsVideo.js

primary languageTypeScript

Key Features of hls.js

Parses MPEG‑TS segments and feeds them to the Media Source Extensions API for smooth playback.

Automatically switches quality levels based on real‑time bandwidth measurements.

Supports low‑latency HLS (LL‑HLS) for near‑real‑time streaming applications.

Provides fallback to native HLS on iOS Safari while using MSE on other browsers.

Offers a rich set of events and callbacks for developers to monitor buffering, errors, and quality changes.

Integrates easily with popular video frameworks like Video.js, Plyr, and custom HTML5 players.

Allows custom loader implementations to fetch segments via fetch, XHR, or WebSockets.

Includes built-in support for DRM‑compatible encrypted streams via EME.

Use Cases for hls.js

Live sports streaming

Deliver low‑latency live video to browsers without requiring native HLS support.

On‑demand video platforms

Provide adaptive bitrate playback for VOD content across desktop and mobile browsers.

Enterprise training portals

Embed secure, encrypted streams into internal web applications.

Custom video player development

Build bespoke UI controls while leveraging hls.js for stream handling.

Pros & Cons of hls.js

Pros

Free and open‑source with active community
Works in all major browsers supporting MSE
Highly configurable and extensible
Supports both live and on‑demand HLS

Cons

Relies on browser MSE support; not available on older browsers
No built‑in DRM UI; requires additional EME integration
Large source maps can increase initial load size

Frequently Asked Questions

Does hls.js work on iOS Safari?

iOS Safari has native HLS support, so hls.js falls back to the native player while using MSE on other platforms.

Can hls.js handle encrypted streams?

Yes, it works with Encrypted Media Extensions (EME) to play DRM‑protected HLS content.

Is there a CDN‑specific configuration needed?

hls.js can be configured with custom loaders to support token‑based URLs, byte‑range requests, or CDN‑specific headers.

How do I integrate hls.js with Video.js?

Install the videojs‑hlsjs‑plugin or manually instantiate Hls and attach it to the Video.js player instance.

Pricing Overview

View full pricing →

Free

Detailed plans are not listed. Visit the official website for pricing information.

Reviews & Ratings0.0

Write a Review See all reviews →

No reviews yet. Be the first to write one!

Top Alternatives & Similar Tools

View all alternatives & similar tools →

No alternatives available yet.