What is M3U8 and HLS Streaming?
Understand how HTTP Live Streaming works under the hood and why M3U8 playlists are used globally.
Read Article →Capture M3U8/HLS streams, MPEG-DASH playlists, live web broadcasts, and encrypted video chunks. Automatically stitches and converts them into pristine MP4 format directly on your machine.
Web videos are no longer simple MP4 files. DownVid gives you the tools to analyze, assemble, and archive any modern streaming format.
Monitors network traffic and page runtime to capture hidden .m3u8 and .mpd playlists before the video player obscures them.
Streams encrypted with standard AES-128-CBC keys are decrypted on-the-fly inside your browser using the accelerated Web Crypto API.
For protected or dynamic media players, tap directly into the MediaSource buffer with playback acceleration up to 6x for fast downloading.
Transforms hundreds of fragmented transport stream segments (.ts) into a single, clean, universally playable MP4 file without quality degradation.
Record ongoing live broadcasts or webinars with custom start/end time markers, pause/resume capability, and auto-split safeguards for large streams.
Download alternate audio tracks or extract background audio directly to MP3/M4A, and save synchronized VTT/SRT subtitles.
Get the video you need in three intuitive steps.
Navigate to any webpage and hit play. DownVid automatically sniffs and isolates the underlying media manifest.
Open the DownVid extension toolbar or side panel. Choose your desired resolution (1080p, 720p, etc.) and click Download.
DownVid downloads the chunks in parallel, decrypts them, remuxes to MP4, and prompts you to save the complete file.
Everything you need to know about DownVid, stream technologies, and copyright compliance.
DownVid is a software utility developed for personal archiving, educational analysis, and backup purposes. You are solely responsible for ensuring you have the legal right or permission to download any content. Using the tool to violate copyright laws or commercial broadcasting rights is strictly prohibited under our Terms of Service.
Most modern websites do not store full MP4 files on their servers. Instead, they slice videos into hundreds of small 2-to-6 second segments indexed by an M3U8 or MPD playlist. DownVid acts as an automated reconstructor that fetches every segment, decrypts it, and remuxes it into a unified MP4 file.
No! DownVid performs lossless remuxing. It repackages the exact video frames (H.264/AVC or H.265/HEVC) and audio frames (AAC/Opus) into an MP4 container without recompression. The output file retains 100% of the original broadcast quality.
First, make sure the video has started playing for a few seconds. If the site uses a blob player or canvas rendering, click the "Record" button in DownVid. This activates our in-page recording overlay which captures raw video buffer data with up to 6x speed acceleration.
Absolutely not. DownVid operates on a zero-knowledge architecture. All downloads, segment stitching, and file processing execute purely in your local web browser. Your video data never touches our servers.
Read in-depth technical analysis written by our multimedia engineering team.
Understand how HTTP Live Streaming works under the hood and why M3U8 playlists are used globally.
Read Article →Step-by-step instructions for assembling segments and creating universal MP4 video files.
Read Article →Comparing Apple's HLS protocol with MPEG-DASH. Formats, manifests, and device compatibility.
Read Article →