One recipe for viral success is the video mashup: two parts addictive video and one part expertly chosen soundtrack make for a perfect meme. The Berlin-based startup Weavly is bringing mashup creation to the people with its web-based editor that pulls video from YouTube, Loopcam, Vine, and/or GIFs from Tumblr, then pairs them with music from SoundCloud.
You can easily create multimedia right in the browser with Weavly's online tools. Enter a search term or paste the URL of a video/GIF you like, then drag and drop the media into the timeline editor. Preview each video, cut where the clip should start and end, and make more precise edits in the timeline. Select some audio, drag and drop that file into the editor, and — voilà — video is made. The video mashup can be shared on Facebook, Twitter, Tumblr, Reddit, or via embed code. So, mix it up and send us your viral video sensations in the comments below.