Free online brightness adjuster and contrast adjuster, without any software download.
Online UniConverter (originally Media.io) can work as a video brightness adjuster, contrast adjuster, and saturation adjuster to enhance your video effects online and free.
Trim video online easily by setting the video start time and end time, you can just drag the frame to trim the unwanted parts.
Rotate video online clockwise or counterclockwise in 90 degrees, which helps to change portrait scene in a landscape mode.
Crop video online with removing black edges or changing aspect ratio to fit for Instagram, YouTube, Facebook, and other platforms.
Flip and mirror a video online horizontally or vertically. Videos like webcam recordings, camcorder videos, and YouTube videos are all supported.
Online UniConverter (originally Media.io) is a totally free online video editor, so you can use it without buying a license or paying extra money.
You can choose output video resolution from the same as source, 240p, 360p, 480p, 720p, to 1080p and the output formats including MP4, AVI, MKV, WMV, 3GP, and FLV.
Online UniConverter (originally Media.io) is a secure HTTPS (SSL) connection website which will keep your data in safety. All uploaded files will be deleted from the server after 24 hours.
Online UniConverter (originally Media.io) can not only adjust video online but also convert and compress video and audio files.