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How to Fix Clipchamp Exporting Very Large Video File Sizes

Bushra Parveen Sep 30, 2026 869 views

Question details

The user is experiencing unusually large file sizes when exporting videos from Clipchamp, even when shortening the video or lowering the resolution.

How to Fix Clipchamp Exporting Very Large Video File Sizes

Product: Clipchamp
Device & OS: not provided
Scenario: Exporting a completed or edited video project.
Observed behavior: The exported video file size increases dramatically compared to the original file, sometimes ballooning from 174 MB to over 600 MB despite being cut shorter and set to a lower resolution.

Before you start

Check the file size and resolution of your original video before exporting so you can establish an accurate baseline for comparison.

Solution 1Recommended

Adjust Resolution and Bitrate Settings

Lowering the resolution is the first step to reducing the overall file size directly within the Clipchamp interface.

Clipchamp uses specific codecs and bitrates that might be higher than your source video. By manually selecting a lower export quality, you can help mitigate the file size inflation.

Click on Export

Finish editing your video and click the 'Export' button located at the top right corner of the Clipchamp editor.

Select a lower resolution

From the dropdown menu, choose a lower resolution such as 720p or 480p instead of 1080p.

Export and compare

Wait for the video to render, download the file, and right-click it to check its properties and confirm the new file size.

Quality vs. Size: Lowering the resolution will decrease the file size but may also reduce the visual clarity of your final video.

Solution 2

Compress the Exported Video with a Third-Party Tool

Use this solution if Clipchamp's internal settings still yield a file that is too large for your needs.

Solution 3

Submit Feedback to Clipchamp Support

Report the issue to Microsoft Clipchamp so their development team can improve compression algorithms in future updates.

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Frequently Asked Questions

Why did my shortened video become larger after exporting from Clipchamp?

Clipchamp uses specific codecs and bitrates during rendering that might have much less compression than your original video file. This means even if you cut the video shorter, the new encoding settings can cause the file size to inflate significantly.

Does Clipchamp allow me to change audio compression settings?

No, Clipchamp currently offers very limited controls over audio compression. Uncompressed or high-bitrate audio tracks can contribute heavily to unexpected file size increases.

Will exporting at 480p guarantee a smaller file size?

Not always. If the background bitrate and codec parameters remain unoptimized, a 480p export can still result in a larger file than a highly compressed 720p or 1080p original video. In these cases, using a dedicated third-party video compressor is highly recommended.

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