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How to Fix Clipchamp Exported MP4 Being Larger Than Original

Rana Garcia Sep 28, 2026 880 views

Question details

The user needs to understand why an exported video from Clipchamp is larger in file size than the original source video, despite being trimmed to a shorter duration.

Why Is My Clipchamp Exported MP4 Larger Than the Original Video?

Product: Clipchamp
Device & OS: not provided
Scenario: Exporting a trimmed or shortened video project in Clipchamp.
Observed behavior: A 3-minute 40-second, 231 MB MP4 file becomes a 449 MB file after being shortened to 3 minutes 10 seconds and exported.

Before you start

Check your original video's resolution and file properties to understand its baseline encoding settings before making adjustments in your video editor.

Solution 1Recommended

Reduce Export Resolution in Clipchamp

Since Clipchamp has limited advanced encoding controls, lowering the export resolution is the most direct way to reduce the final file size.

When you edit and export a video, Clipchamp re-encodes it to create a completely new file. Because Clipchamp prioritizes ease of use over advanced bitrate controls, it may apply a higher default bitrate than your original file, resulting in a larger MP4 even if the video is shorter.

Open Export Menu

Click the 'Export' button located in the top right corner of the Clipchamp interface once you finish editing.

Select a Lower Resolution

Choose a lower resolution from the drop-down menu, such as 720p or 480p instead of 1080p, to significantly decrease the final file size.

Save the Video

Wait for the encoding process to finish and save the new, smaller MP4 file to your computer.

Resolution vs. Quality: Lowering the resolution will decrease the file size, but it may also noticeably reduce the visual clarity of the video.

Solution 2

Compress the Exported Video with a Dedicated Encoder

Use a third-party video compressor to regain control over the bitrate and effectively compress the bloated Clipchamp export.

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Frequently Asked Questions

Why do video files get larger after cutting them?

Video editing software creates a completely new encoded file upon export. If the editor uses a higher bitrate or a less efficient codec than the original source file, the resulting file will be larger, regardless of the shorter video length.

Can I change the export bitrate in Clipchamp?

No, Clipchamp is designed for light editing and does not currently expose advanced export settings like specific video or audio bitrate controls. You can only adjust the output resolution.

How can I prevent Clipchamp from inflating file sizes?

Because Clipchamp handles bitrate automatically, the only direct way to prevent large file sizes within the app is to choose a lower resolution (e.g., 720p) during export. For better control, export the video and use a dedicated compressor software afterwards.

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