Audio HLS Stream Generator

Convert audio files to HLS (HTTP Live Streaming) format with multiple quality variants for adaptive audio streaming

Overview

This tool converts any audio file into a complete HLS (HTTP Live Streaming) package — master playlist, per-quality m3u8 playlists, and TS audio segments — ready to drop onto a web server or CDN for adaptive streaming. It generates multiple bitrate variants from 32 kbps up to 320 kbps, so listeners on slow connections get seamless playback while high-bandwidth users hear full-quality audio. Everything runs locally in your browser via WebAssembly: your audio never touches a remote server, which matters for unreleased podcasts, private radio content, or anything you're not ready to share publicly yet.

Key Features

  • Multiple audio quality variants (32k to 320k)
  • Configurable segment duration
  • Adaptive bitrate audio streaming
  • AAC and MP3 codec support
  • Master playlist generation
  • Browser-based processing
  • ZIP download of complete HLS package
  • Optimized for podcasts and radio

Common Use Cases

  • Podcast Distribution — Podcasters preparing episodes for self-hosted adaptive streaming can generate a ready-to-deploy HLS package without uploading their audio to a third-party encoder.
  • Web Radio Streams — Web radio operators can convert pre-recorded shows into multi-bitrate HLS so players automatically step down quality for listeners on mobile data.
  • Music Streaming Sites — Developers building music platforms can produce HLS audio packages locally before integrating them with an HLS.js-powered player on their site.
  • CDN Pre-Processing — Teams that self-host on a CDN can batch-generate HLS packages offline and upload only the finished ZIP, keeping source files off external services.
  • Confidential Audio Content — Journalists, publishers, or educators with sensitive unreleased audio can encode to HLS entirely on-device without any cloud-processing risk.

How It Works
1

Upload Your Audio File

Select an audio file from your device. Supports all major audio formats including MP3, WAV, FLAC, AAC, OGG, and more.

2

Configure Audio Streaming Settings

Choose audio quality variants (32k to 320k bitrate), segment duration, and codec preferences. Perfect for podcasts, radio, and music streaming.

3

Download HLS Audio Package

Get a complete ZIP package with master playlist, quality-specific playlists, and audio segments ready for adaptive streaming deployment.

Frequently Asked Questions

What is HLS audio streaming?
HLS audio streaming delivers audio content in small segments with multiple quality variants, allowing automatic bitrate adaptation based on the listener's connection speed. It's ideal for podcasts, radio stations, and music streaming.

What audio quality variants are generated?
Our generator creates multiple audio streams with bitrates ranging from 32kbps (low bandwidth) to 320kbps (high quality). Common variants include 32k, 64k, 128k, 192k, and 320k bitrates.

Which audio codecs are supported?
We support both AAC and MP3 codecs for output. AAC provides better compression efficiency and is preferred for streaming, while MP3 offers broader compatibility with older devices.

How do I deploy the generated HLS audio?
Upload the ZIP contents to your web server or CDN. Use the master playlist (.m3u8) as the source in HLS-compatible audio players or HTML5 audio elements with HLS.js.

Is this suitable for live audio streaming?
This tool creates HLS packages for on-demand audio streaming. For live audio streaming, you'll need a live encoding solution that generates HLS segments in real-time.

What's the maximum audio file size?
The maximum input file size is 500MB, which can handle several hours of high-quality audio content. Processing time varies based on audio length and quality settings.

Are my audio files uploaded anywhere?
No, all processing happens locally in your browser using WebAssembly. Your audio files never leave your device, ensuring complete privacy for your content.

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