マルチスレッド取得で任意の M3U8 ストリームをデバイスにダウンロード
This free online M3U8 downloader lets you save HLS streams directly in your browser — no software install, no sign-up, no upload. It fetches segments in parallel, retries failed chunks automatically, and merges them into a playable video file. Works with standard M3U8 playlists (.m3u8 and .m3) served over HTTPS.
複数セグメントを同時ダウンロードして最大速度を実現。
失敗したセグメントを設定回数まで自動再試行。
ダウンロード後自動的にセグメントを単一動画ファイルに結合。
M3U8 ストリーム URL を入力
スレッド数、再試行、結合設定を構成
ダウンロードをクリック — セグメントが同時取得され自動結合
The downloader fetches HLS media segments in parallel inside your browser, retries failed ranges, then merges TS/fMP4 parts locally. Nothing is uploaded to our servers—the playlist URL and bytes stay on your device.
Best results come from stable HTTPS sources, reasonable concurrency (avoid hammering tiny CDNs), and streams you legally may archive. Encrypted HLS requires the key URI to be fetchable with CORS; if the key is blocked, download cannot complete.
When you need a single MP4 file for editors or LMS offline viewing, finish with the converter tool (ffmpeg.wasm remux/transcode in-browser). Prefer remux when codecs are already H.264/AAC for speed and quality.