Adapter promises to convert anything to anything — at least among image, audio and video formats. And they’ve got a long of file types to prove it. You can convert in batches, and do trims on audio or video.

Distinguishes itself from similar apps with the ability to analyse each image to identify the most important element from one of four perspectives — balanced, face, text or object. Has batch processing and live preview.

Download from YouTube, Vimeo, Facebook and other video sites. Convert downloaded videos to MPEG4, MP3 or other formats in one step.

Multithreaded video transcoder supports most common multimedia files and any DVD or Bluray-like source that is not copy-protected. Outputs to several popular file formats, including the one for Apple TV.

Those pictures you take with your iPhone are in a format called HEIC. If you want to share them on the web or with non-Apple users, you need to convert them to JPG or PNG. That’s what this app does.

Convert avi, wmv, mkv, rm, mov and more using several presents, including iPod/iPhone. You can also create your own presets or download others. Smart settings keep your video in the correct aspect ratio.

Convert audio files to one of 16 formats. If it doesn’t have the codec you want, it will download it on the fly.

Drag-and-drop simplicity for all your video conversion needs, with the promise of high quality output and optimized size. Supports MP4, MPV, MOV, MKV, AVI and WEBM.

Batch image-converter and resizer supports common formats such as JPG, PNG, TIFF, GIF, Camera RAW, JPEG2000, WebP and OpenEXR in addition to over 500 other image formats. Operations include rotating, adding watermarks, adding text, and adjustments for brightness, shadows and more.

Go to the YouTube music video you want and copy the URL. You can then click the paste button in the app and hit the download button. A music MP3 will show up in your Music folder or, if you choose, iTunes. Super simple.