FetchV

M3U8 Video Downloader

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Install Extension

This is an extension program that runs on your browser and allows you to download network videos such as m3u8 and mp4. You can install it by visiting the browser web store through the following link:

Go to Web Store
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M3u8 file loading...
m3u8 file load fail:
Preview
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Error requests: 0
The task is automatically suspended because there are more than 30 bad requests, and you can click the continue button to restart.
The video is expected to be too large and needs to be divided into two or more parts. Please save the completed part as soon as possible to free up memory and avoid task failure due to insufficient memory.
The download is complete, please save it to your computer disk as soon as possible to free up memory.
Download threads:
Save itCache will be cleared: 30sLoading...Processing...
Download Completed!
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The M3U8 downloader requires the installation of a browser extension to work.
Install/Update Extension Install/Update Extension
MP4 Muxer:

Based on user feedback, we have added a new MP4 muxer for generating MP4 files to fix various issues. The new muxer offers better compatibility and performance, but it has not been extensively tested. Therefore, we provide both the new and old muxer options for users to switch between (changes take effect next time). If the new muxer does not work properly in your use case, you can switch back to the old muxer. We would appreciate any feedback to help us fix existing issues. Additionally, this option is only available for extension versions 2.6 and above.

FAQ

What are the differences between the MP4 export options?
FFmpeg: Compatible with most local players but cannot output files larger than 1.6GB. It may also have issues on older computers. If "FFmpeg" fails, the application will automatically switch to "FMP4" output.
FMP4: Supports larger files, up to around 10GB, but is not compatible with VLC. Some players may also require longer loading times.
Merge Fragments: Works with most local players and supports large files, but in rare cases, audio may become out of sync.
What are HLS and M3U8?
HLS stands for HTTP Live Streaming, and M3U8 is an index file that contains information about the segments of a streaming video. Currently, most online videos are HLS streaming videos. FetchV's M3U8 Downloader works by downloading video segments through the M3U8 file and then merging them into an MP4 file.
Can this M3U8 Downloader download any M3U8 videos?
No! This downloader is only suitable for M3U8 videos that use standard video playback technology. It may not work for M3U8 videos that use unconventional playback technology, encryption, or live streaming. If you encounter a situation where direct downloading is not possible, you can try using FetchV's "Record Mode" to save the video.
Why is my download speed slow?
In most cases, the download speed ranges from 200KB/s to 20MB/s, depending on your network condition and the target video. If you are unable to smoothly play the target video before downloading, it indicates a poor network connection between you and the target video. Additionally, try to avoid playing the target video while downloading to reduce bandwidth usage.
Why does the download task pause automatically?
The task will automatically pause when there are more than 30 error requests. Continuous error requests are usually caused by your network being disconnected or the requests being rejected. You can wait for a moment and then click the "Continue" button to try again.
Why are the downloaded video frames corrupted?
If the video can be played after downloading but the frames only display scrambled colors, it means that the video data cannot be parsed correctly. Please try using "Record Mode".
Can I download multiple videos simultaneously?
If you are downloading large videos, it is advisable to avoid doing so unless your computer has sufficient power and bandwidth. During downloading, the extension caches data in this tab, using your memory (which is released when you close the tab or save the file to disk). The larger the video you download, the more memory it occupies. If your computer's memory is insufficient, it may cause the tab to crash. On the other hand, if you download multiple large files simultaneously and the bandwidth and CPU performance are not adequately allocated, it may also result in task failures.
What should I do if I encounter a download error?
If you encounter a download error, it means that the M3U8 Downloader is unable to download the video for you. In this case, you can try using "Record Mode".
Where are the downloaded videos saved?
When you click the "Save" button, the file is saved by default in the download directory of your browser. Normally, when saving a file, the browser will display a pop-up window for you to choose the download folder. If this window does not appear, you can find the downloaded video file in your browser's download history.
Why can't I download videos from some websites that I used to be able to?
There are various types of video playback technologies used on the internet, and this M3U8 Downloader is only suitable for videos that use common playback technologies. If the target video website has modified its video playback technology, the M3U8 Downloader may no longer work. You can try using "Record Mode".
Why is the downloaded video incomplete (only a short segment)?
This may be due to the video using non-standard playback technology, which causes the application to be unable to parse the video data. In this case, you can try using "Record Mode" to download the video in its entirety.
Why does the saved video have only audio without video, or video without audio?
This may be because the video and audio of the target video are loaded separately. Currently, the M3U8 Downloader cannot parse such videos. You can try using "Record Mode" to download the target video in its entirety, including both video and audio.
Why do I experience lag when playing videos using a local player?
In some cases, the downloader may use a streaming structure (fragmented MP4) to assemble the file, which is an emerging MP4 file structure that some players may not fully support. You can try changing the player.
Why does the loading icon keep showing and the task won't start?
If you are using this extension for the first time, it needs to load FFmpeg (about 9MB) before the task can start, which may take some time. If your network connection to the server is poor, it may prevent the task from starting. In this case, you can try restarting the download task.
Does FetchV collect my video information or save copies of the videos I download?
No! All of FetchV's work is done within your browser, and it will not upload your video information or video copies to anywhere. Your personal privacy will be protected, and you can use it with confidence!
No data detected by the application!
Tabs in a hidden state may enter power-saving mode, causing live streams to be discontinuous. Therefore, when a tab is hidden, the stream recorder may play the live stream audio at an extremely low volume (barely audible) to keep the recorder running in the background. (Due to browser policy restrictions, you need to click here or anywhere on the document for this action to be triggered!)
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/ The task has been automatically paused due to more than 30 error requests. Try reducing the download threads and resume. /

/ Solve Problem

The file is too large and needs to be saved in segments. Please save the segments as soon as possible to free up memory usage!
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