Shotcut 15.04 recently released, is a free, cross-platform, open-source video editor. It supports oodles of audio and video formats and codecs thanks to FFmpeg, supports many image formats such as BMP, GIF, JPEG, PNG, SVG, TGA, TIFF as well as image sequences. See page for more features. Shotcut 15.0x changelog Added an audio tone generator (in File Open Other). Now you can set a new default duration for audio or video fade filters.