Webm Programs:
https://gitgud.io/nixx/WebMConverter
https://github.com/Kagami/boram
https://github.com/Kagami/wybm
http://www.xmedia-recode.de/en/screenshots.html

Guides:
https://wiki.installgentoo.com/index.php/WebM
VP8 Video: https://trac.ffmpeg.org/wiki/Encode/VP8
Vorbis Audio: https://trac.ffmpeg.org/wiki/TheoraVorbisEncodingGuide

Light Editing:
http://fixounet.free.fr/avidemux/
http://www.virtualdub.org/

Before asking for the video's source, make an effort to find it yourself by running a search on the webm's title metadata. You'd be surprised what can turn up if you simply append "kpop" to the search query.

Title metadata may be read using 4chan X (https://ccd0.github.io/4chan-x/) inline or by downloading the file and using a video player like vlc (press ctrl+i) or mpc-hc (press ctrl+3).
Conversely, for those making webms, include the video source within the title metadata to help those interested and for the information to stay with the webm if it's ever reposted.
e.g. ffmpeg -i input.webm -c copy -metadata title="Your Title" output.webm

Try to not post webms that were just in the previous thread, unless requested.

Previous thread : >>2222560

Cool movies/series scenes edits like monogatari
Like this
https://youtu.be/S3nXBahNeME

COME IN HERE and Try not to safe
Best Thread of this Month, dont miss it

I collected so many webms that I want to share the best of them with you, it will be a mix of feels, happy webms, YLYL, and stuff thats just fun to watch.

sit back, and enjoy

starting off with ylyl

just epic looking gifs

404 >>2222856
403 >>2217157
402 >>2209900

WebM creator (aka WebM for Retards)
https://gitgud.io/nixx/WebMConverter

/g/ guide to WebMs
https://wiki.installgentoo.com/index.php/WebM

Sauce guide:
http://pastebin.com/P4Yxj435

Anything WP / Sam Hyde Related.

ylyl

ITT: Webms of nonsexual things that are curiously lewd.

weird YLYL

(Never got to thank the anon for creating this webm for me, because the thread already got archived. so THANKS!)