Why is My Video File So Big?

There are a few reasons why your video file might be so big. First, the video may be too high in resolution. A video with a higher resolution (such as 1080p or 4K) has more pixels in each frame, and each pixel holds information about the color and brightness of that frame. Then there’s the video’s frame rate – how many frames are recorded each second. Finally, the number of bits per second (or “bitrate”) determines how much data is contained in each frame. All of these factors add up to make a video file that’s too large for use on a website or live stream, or even for sending in a DM on social media (most platforms have limits on attachment size).

Alternatively, the video might be too long. A longer video requires more bits to encode each frame, which increases the overall size of the file. Video editing tools like Apple’s iMovie or Adobe’s Premiere have features that allow you to trim a video down to a more manageable length without sacrificing quality. You can also reduce the video’s resolution or bitrate to decrease its size.

How much movement and transitions are in the video will impact its file size as well. For example, a video with a lot of action will likely be larger than a static presentation of slides with no movement. Additionally, using MP4 format will help mitigate some of the file size issues associated with transitions and motion, as it’s designed for these types of files.

If you’re using QuickTime to edit your video, try changing the file export settings to see if that helps. The “Export” window will give you a wide range of options for your video’s format and quality, but we recommend starting with the H.264 Baseline profile if you want to maintain the highest possible quality without sacrificing too much space.

Other options include trying to lower your video’s resolution (for example, to 720p or 1080p) if you’re not already using that resolution. However, keep in mind that lowering the resolution will decrease the image quality of your video, so you’ll need to consider this carefully if you’re making a video for your business or website.

A web-based video compression tool like VEED can be a good option for those who aren’t familiar with advanced video editing software or who need to get their videos down to a more manageable file size. These apps typically offer a simple interface and allow you to select the target resolution, frame rate, quality, and bitrate before reducing the video’s size. Using these tools will often make your video file smaller and faster, and they can be especially helpful if you’re working with a platform that limits the size of your video file uploads or for sending via email. For instance, Gmail will automatically prompt you to use their File Drive service if your video is too large for an email attachment.