https://www.ssyoutube.com/watch?v=SXfnm3Bm13Q

Documentation

Options:
General Options:
-h, --help                 print this help text and exit
--version                  print program version and exit
-U, --update               update this program to latest version. Make sure
that you have sufficient permissions (run with
sudo if needed)
-i, --ignore-errors        continue on download errors
--dump-user-agent          display the current browser identification
--user-agent UA            specify a custom user agent
--referer REF              specify a custom referer, use if the video access
is restricted to one domain
--list-extractors          List all supported extractors and the URLs they
would handle
--extractor-descriptions   Output descriptions of all supported extractors
--proxy URL                Use the specified HTTP/HTTPS proxy
--no-check-certificate     Suppress HTTPS certificate validation.

Video Selection:
--playlist-start NUMBER    playlist video to start at (default is 1)
--playlist-end NUMBER      playlist video to end at (default is last)
--match-title REGEX        download only matching titles (regex or caseless
sub-string)
--reject-title REGEX       skip download for matching titles (regex or
caseless sub-string)
--max-downloads NUMBER     Abort after downloading NUMBER files
--min-filesize SIZE        Do not download any videos smaller than SIZE
(e.g. 50k or 44.6m)
--max-filesize SIZE        Do not download any videos larger than SIZE (e.g.
50k or 44.6m)
--date DATE                download only videos uploaded in this date
--datebefore DATE          download only videos uploaded before this date
--dateafter DATE           download only videos uploaded after this date

Download Options:
-r, --rate-limit LIMIT     maximum download rate (e.g. 50k or 44.6m)
-R, --retries RETRIES      number of retries (default is 10)
--buffer-size SIZE         size of download buffer (e.g. 1024 or 16k)
(default is 1024)
--no-resize-buffer         do not automatically adjust the buffer size. By
default, the buffer size is automatically resized
from an initial value of SIZE.

Filesystem Options:
-t, --title                use title in file name (default)
--id                       use only video ID in file name
-l, --literal              [deprecated] alias of --title
-A, --auto-number          number downloaded files starting from 00000
-o, --output TEMPLATE      output filename template. Use %(title)s to get
the title, %(uploader)s for the uploader name,
%(uploader_id)s for the uploader nickname if
different, %(autonumber)s to get an automatically
incremented number, %(ext)s for the filename
extension, %(upload_date)s for the upload date
(YYYYMMDD), %(extractor)s for the provider
(youtube, metacafe, etc), %(id)s for the video id
, %(playlist)s for the playlist the video is in,
%(playlist_index)s for the position in the
playlist and %% for a literal percent. Use - to
output to stdout. Can also be used to download to
a different directory, for example with -o '/my/d
ownloads/%(uploader)s/%(title)s-%(id)s.%(ext)s' .
--autonumber-size NUMBER   Specifies the number of digits in %(autonumber)s
when it is present in output filename template or
--autonumber option is given
--restrict-filenames       Restrict filenames to only ASCII characters, and
avoid "&" and spaces in filenames
-a, --batch-file FILE      file containing URLs to download ('-' for stdin)
-w, --no-overwrites        do not overwrite files
-c, --continue             resume partially downloaded files
--no-continue              do not resume partially downloaded files (restart
from beginning)
--cookies FILE             file to read cookies from and dump cookie jar in
--no-part                  do not use .part files
--no-mtime                 do not use the Last-modified header to set the
file modification time
--write-description        write video description to a .description file
--write-info-json          write video metadata to a .info.json file
--write-thumbnail          write thumbnail image to disk

Verbosity / Simulation Options:
-q, --quiet                activates quiet mode
-s, --simulate             do not download the video and do not write
anything to disk
--skip-download            do not download the video
-g, --get-url              simulate, quiet but print URL
-e, --get-title            simulate, quiet but print title
--get-id                   simulate, quiet but print id
--get-thumbnail            simulate, quiet but print thumbnail URL
--get-description          simulate, quiet but print video description
--get-filename             simulate, quiet but print output filename
--get-format               simulate, quiet but print output format
--newline                  output progress bar as new lines
--no-progress              do not print progress bar
--console-title            display progress in console titlebar
-v, --verbose              print various debugging information
--dump-intermediate-pages  print downloaded pages to debug problems(very
verbose)

Video Format Options:
-f, --format FORMAT        video format code, specifiy the order of
preference using slashes: "-f 22/17/18"
--all-formats              download all available video formats
--prefer-free-formats      prefer free video formats unless a specific one
is requested
--max-quality FORMAT       highest quality format to download
-F, --list-formats         list all available formats (currently youtube
only)

Subtitle Options:
--write-sub                write subtitle file (currently youtube only)
--write-auto-sub           write automatic subtitle file (currently youtube
only)
--only-sub                 [deprecated] alias of --skip-download
--all-subs                 downloads all the available subtitles of the
video
--list-subs                lists all available subtitles for the video
--sub-format FORMAT        subtitle format (default=srt) ([sbv/vtt] youtube
only)
--sub-lang LANGS           languages of the subtitles to download (optional)
separated by commas, use IETF language tags like
'en,pt'

Authentication Options:
-u, --username USERNAME    account username
-p, --password PASSWORD    account password
-n, --netrc                use .netrc authentication data
--video-password PASSWORD  video password (vimeo only)

Post-processing Options:
-x, --extract-audio        convert video files to audio-only files (requires
ffmpeg or avconv and ffprobe or avprobe)
--audio-format FORMAT      "best", "aac", "vorbis", "mp3", "m4a", "opus", or
"wav"; best by default
--audio-quality QUALITY    ffmpeg/avconv audio quality specification, insert
a value between 0 (better) and 9 (worse) for VBR
or a specific bitrate like 128K (default 5)
--recode-video FORMAT      Encode the video to another format if necessary
(currently supported: mp4|flv|ogg|webm)
-k, --keep-video           keeps the video file on disk after the post-
processing; the video is erased by default
--no-post-overwrites       do not overwrite post-processed files; the post-
processed files are overwritten by default
--embed-subs               embed subtitles in the video (only for mp4
videos)

Getting started

In Windows save the exe version somewhere (in your PATH if you want to run it simply as youtube-dl) and run it from the command line.

In Unix, download it, give it execution permission and copy it to one of the PATH directories (typically, /usr/local/bin).

To update, simply call youtube-dl -U, we recommend to do it often.

After that, you should be able to call it from the command line as youtube-dl. I will use youtube-dl in the following examples. Usage instructions are easy. Use youtube-dl followed by a video URL or identifier. Example: youtube-dl "//www.youtube.com/watch?v=foobar". The video will be saved to the file foobar.flv in that example. As YouTube.com videos are usually in Flash Video format, their extension should be flv. In Linux and other unices, video players using a recent version of ffmpeg can play them. That includes VLC, MPlayer, etc. Those two work under Windows and other platforms, but you could also get a specific FLV player of your taste.

If you try to run the program and you receive an error message containing the keyword SyntaxError near the end, it means your Python interpreter is too old, remember that youtube-dl need Python version 2.6, 2.7, or 3.3+.

More usage tips

The program is usually invoked as youtube-dl followed by options and the video URLs. Listing all the options here would make this text too long, so you can run youtube-dl --help and get a summary of them. From that point on you can start experimenting with the different options yourself. The most common ones are -t (or -l) to include the video title in the file name. Also, the -o option can specify the output file name and path. It allows special character sequences that can be used as templates to be replaced. See the "Output template" section for more details.

Some YouTube videos are served using Adobe's proprietary RTMP protocol, which imposes DRM restrictions and encrypts the connection. youtube-dl is not able to download these videos by itself. However, it will attempt to use the rtmpdump program, if it's installed in your system, to download these videos.

Frequently Asked Questions

The Frequently Asked Questions page contains answers to some common questions that pop up in my e-mail and in the issue tracker. Be sure to check it before reporting problems.

Supported sites

youtube-dl can download videos from not only YouTube, but over 150 different services. For a complete list, see the Supported sites pages or execute youtube-dl --extractor-descriptions.

Proxy support

youtube-dl supports downloading videos through a proxy, by setting the http_proxy environment variable to the proxy URL, as in http://proxy_machine_name:port/.

YouTube Video

Using the -f option and other related options, you can specify the video format to be downloaded. Add the -F option to see all valid formats. If you have an order of preference other than best quality, specify the formats separating them with slashes: -f 22/17/18. You can also pass in an extension, like -f mp4/webm.

Output template

The -o option allows users to indicate a template for the output file names. The basic usage is not to set any template arguments when downloading a single file, like in youtube-dl -o funny_video.flv "http://some/video". However, it may contain special sequences that will be replaced when downloading each video. The special sequences have the format %(NAME)s. To clarify, that's a percent symbol followed by a name in parenthesis, followed by a lowercase S. Allowed names are:

• id: The sequence will be replaced by the video identifier.
• url: The sequence will be replaced by the video URL.
• uploader: The sequence will be replaced by the nickname of the person who uploaded the video.
• upload_date: The sequence will be replaced by the upload date in YYYYMMDD format.
• title: The sequence will be replaced by the video title.
• ext: The sequence will be replaced by the appropriate extension (like flv or mp4).
• epoch: The sequence will be replaced by the Unix epoch when creating the file.
• autonumber: The sequence will be replaced by a five-digit number that will be increased with each download, starting at zero.

The current default template is %(id)s.%(ext)s, but that will be switchted to %(title)s-%(id)s.%(ext)s (which can be requested with -t at the moment).

In some cases, you don't want special characters such as 中, spaces, or &, such as when transferring the downloaded filename to a Windows system or the filename through an 8bit-unsafe channel. In these cases, add the --restrict-filenames flag to get a shorter title:

$ youtube-dl --get-filename -o "%(title)s.%(ext)s" BaW_jenozKc youtube-dl test video ''_ä↭