Check out the List of Wiki video projects; there is a dedicated discussion and support mailing list for makers of video in Wikimedia projects, WikiVideo-l (archive). You can also join the WMF Multimedia Team mailing list (archive).

The process of uploading a video is similar to uploading an image. First, ensure the video is freely licensed and within scope. Now you have several options:

• New uploads:

• • Use Video2commons, a tool integrating both conversion and upload, for both locally stored videos and videos from some websites. This might be an easier method since you don't need to perform video conversion by yourself, but may take more time as third-party conversion has limited capacity.

• • Alternatively, follow these steps:
    1. if the video is not on your local computer but online, first download the video – likely as described in Commons:YouTube files/Downloading.
    2. once you have the video on your device, check if it has a compatible format. If necessary, convert the video to the Theora or the WebM format.
    3. start the UploadWizard and follow the instructions. Alternatively, you can use chunked upload. Include appropriate topic categories. It will take some time to upload. Files can't be larger than 5GiB. Theoretically, it is also possible to split the video into shorter parts and upload each part separately. The template {{Split file}} could be used to link the parts of files split in this way.

A transcode is a VP9 or WebM file with a smaller resolution, smaller file size, or lower bit rate than the original video, created to optimally serve one of our videos to web browsers by mw:Extension:TimedMediaHandler. After each video is uploaded, that extension creates a "Transcode status" section on the video's file description page, which contains a link to "Update transcode status" (which will purge the page) and then a table which details the following statistics for each transcode: "Format" (sorted by video format (VP9 then WebM) and then by decreasing video resolution); "Bitrate" (in kbps or Mbps); "Download" (a link to download that particular transcode); "Actions" (a link to "Reset transcode" for that particular transcode, in case the transcoding failed); "Status" (what happened last to that transcode and when (UTC)); and "Encode time" (how long it took a backend server to finish the transcoding process, in seconds or minutes and seconds).

(Note that, since 2017, new users are unable to upload video or audio files, because of frequent abuse of this related to Wikipedia Zero. See Special:AbuseFilter/180.)

For trimming videos these commands can be used:

1. Install ffmpeg and run the below commands in the console. You need to adjust the timings and the file paths.
2. ffmpeg -copyts -ss 00:00:23.000 -to 00:01:24.400 -i ./file.webm -c copy ./output.webm
3. The above command will run through very quickly. Now check the video: if it trimmed at the right times, you're done but if not you need to use the command below which can take a while to run.
4. ffmpeg -ss 00:00:23.000 -to 00:01:24.400 -i ./file.webm -c copy ./output.webm

We have a tool in the early stage of development here (currently dysfunctional). For extracting single images from videos, see Category:Still images from videos.

Creating a link that appears at first as a still image of a video and that plays the video after its play button is clicked is called “embedding a video”. The easiest way to embed a video directly into an article (or another page) is by using the same [[File:]] syntax as for image or sound files. The result is on the right. The video can be resized by adding a fixed size (like "|200px") or - preferable - the "|upright" parameter. In most cases you should stick to the default size. If it is higher than wide, use the pure "|upright".

In case of Ogg Theora files, a keyframe from the midpoint of the video is used by default for the initial thumbnail image. To use a different keyframe, use the thumbtime parameter. For instance:

Either specify the time in seconds or use colons to separate hours, minutes and seconds. Separate a fraction of a second by a "." (dot). Only tenths (0.1, 0.2, etc.) of seconds work, currently.

There are two types of links to a video:

• File – To create a link to the video's file description page,
  • use [[:File:Time Lapse of New York City.ogv]].
  • To make the text of a link to the video's file description page appear as some text other than the video's filename, use [[:File:Time Lapse of New York City.ogv|some text you prefer]].

• Media – To create a link that downloads the video,
  • use [[Media:Time Lapse of New York City.ogv]] or use [[:Media:Time Lapse of New York City.ogv]].
  • To make the text of a link that downloads the video appear as some text other than the video's filename, use [[Media:Time Lapse of New York City.ogv|some text you prefer]] or use [[:Media:Time Lapse of New York City.ogv|some text you prefer]].

Allows embed code to reference a segment of the video stream or set a start time. Hover over the player to see start time listed as 5s, press play and notice it stops playback at 7 seconds.

[[File:Weeding.ogv|thumb|300px|start=5|end=7|Starts at 5 seconds and ends playback at 7 seconds]]

This feature depends on an HTML5 video browser.

Note: For URLs used outside Wikimedia wikis, the start of a section can be linked to as https://commons.wikimedia.org/wiki/File:WikiCite_2020_The_frontend_of_WikiCite.webm?start=1:12:30 where the three colon-separated value represent hours, minutes and seconds respectively. Values in the format start=mm:ss and start=sss are also accepted.

In case of animated GIF files, the animation is played continuously in a loop. Animated GIFs are (currently) scaled down on server-side to the required thumb size if they do not exceed the 12.5 Megapixel limit. If they exceed it a still frame will be displayed.

Main article: Commons:Timed Text

To upload an already created subtitle file, open the file on your computer in a text editor (such as Notepad) and copy the text into a new page in the TimedText namespace that matches the filename of the video and the language code.

Keep in mind to paraphrase not spoken sounds and encompass them with rounded brackets. E.g.

You can also import subtitles from YouTube or create a transcript using machine transcription so you only need to correct any flaws if there are any. This can also be used to translate transcripts.

Make sure there is {{Closed captions}} below the file description once the file has closed captions.

See also: Commons:Ajuda multimèdia

Playing video and sound embedded on Wikimedia sites requires no additional software in current desktop and mobile web browsers. On iOS a software decoder is used, which might make the video experience a bit slower than what you are used to on other websites.

You must install software to play video that you have downloaded to your computer. You can learn at Commons:Ajuda multimèdia what software you need to play our media files. VLC multimedia player, mpv, and SMPlayer are open-source and multi-platform.

Main article: Commons:Sobre les llicències

In addition to checking for video copyright, the audio must not contain copyrighted sounds. This includes any copyrighted songs that were added to the video. Ask questions regarding the copyright of the video at Commons:Village pump/Copyright.

Examples of videos that would not be allowed due to copyright:

• Screen captures of software that is itself not under a free license. This includes the macOS and Windows operating system. However, screen captures of software under the GPL or a similar free software license are generally considered to be OK.
• TV/DVD/Videogame/Music video clips and recordings, unless their copyright has expired.
• Copyrighted symbols, logos, etc. (Not to be confused with trademarks.)

• Models, masks, toys, and other objects which represent a copyrighted work, such as a cartoon or movie character. See Commons:Obres derivades.
• Video that contains copyrighted music. Remove the copyrighted audio from the video and try to replace it with free licensed music, then upload.
• Videos of a presentation or lecture, unless the person(s) making the presentation has/have granted explicit permission to allow a video of their performance to be published under a Commons-compatible license via VRTS.

Examples of videos that would be OK to upload:

• Nature videos (video taken at a National Park or of a bird in your backyard)
• Videos from the United States government, such as from NASA.

See also: Commons:Free media resources/Video

Several media resources contain video that is public domain or licensed under a free license. These can be converted and uploaded to Commons. A more comprehensive list can be found at the link above.

• Archive.org open-source movies - Movies under several licenses. Some licenses are accepted in the Commons.
• Archive.org movies - Presentation of several collections of videos, some with free licenses.

• Flickr Creative Commons videos - all assortments of videos licensed under CC-BY or CC-BY-SA
  • Flickr HD videos - high definition videos that are freely licensed
  • Flickr The Commons (public domain) - a variety of videos licensed freely by many institutions, including the Library of Congress
  • Flickr copyrighted videos - these are mostly copyrighted but the uploader might relicense if asked. Use the ticket request system, VRTS.

• YouTube - Creative Commons. Search videos licensed as Creative Commons Attribution on YouTube by doing a search there. Then a filter menu will show up with one of the choices being "Creative Commons". You can also use Vera's Tool to find all open-licenced videos in a given YouTube channel. See also Commons:YouTube files.
• Vimeo - Creative Commons - Public Domain Dedication, Attribution, and Attribution Share-Alike are acceptable for our purposes.
• Free Stock Footage Archive - Videos that are licensed under CC-BY.

Main article: Commons:Audio and video requests

Specific videos may be requested at Commons:Audio and video requests. Please search Commons to see if a similar video exists before making the request.

• Move video files in Category:Videos to appropriate sub-categories, such as those in Category:Videos by subject). (See list of video categories)
  • For example, categorize videos by audio channel – mainly language with categories like Category:Videos in English or Category:Videos without audio as well as Category:Videos with music
• Find orphaned videos and add them to Wikipedia articles.
• Fix issues at Category:Video repair needed

• Check latest video uploads for copyright issues and proper categorization into Category:Videos subcategories
• Tag videos with cleanup templates, including {{Audio out of sync}}.
• More backlog tasks can be found in Category:Commons requests related to videos

• Special:TimedMediaHandler ^[1]
• Most used videos on Commons
• Tool to see most used videos in a category
• Commons:Animated image resources#Videos to animated GIFs
• meta:Video policy, out-of-date but still useful

Video categories

• Category:Videos, base category for video files
• Category:Videos by subject, subcategory where most videos are located
• wikiversity:Category:Video, video files on the Wikiversity project

English Wikipedia image syntax and video documentation

• w:Wikipedia:Extended image syntax#Video files specifically for sound and video
• w:Wikipedia:Videos
• w:Wikipedia:Creation and usage of media files#Video
• w:Wikipedia:WikiProject Lights Camera Wiki

• Commons mobile app code issue: enable searching & playing videos
• Most recent Creative Commons Flickr video
• Media formats supported by the HTML audio and video elements (Mozilla)
• Get ready for plug-in free browsing (MSDN)