Can this force every video under 25MB?

Not always. Duration, resolution, frame rate, and motion can make some videos too large without trimming or resizing.

What should I try first?

Try the Small compression preset, then lower resolution if the output is still too large.

Yes. The linked browser tools process the selected file locally on your device.

25MB target

Compress Video Under 25MB

Aim for a 25MB upload target by combining compression, resizing, and trimming when needed.

Start compressing Resize video

Work toward a 25MB result systematically

There is no single preset that guarantees exactly 25MB for every source. Use the first export as evidence, then change one major size driver at a time.

Estimate what must change

File size is closely related to average bitrate multiplied by duration. A long clip has less bitrate available per second within the same 25MB budget, so it may need lower resolution, fewer frames, more compression, or a shorter running time than a brief clip.

Start with Small and measure the downloaded MP4.
Trim the duration if only part of the recording is needed.
Lower resolution when the complete timeline must be preserved.

Avoid repeated blind compression

Compressing an already compressed output again can accumulate blockiness, ringing, and blurred text. Return to the original source for each revised attempt whenever possible, and change the preset, dimensions, or selected range based on what the previous export showed.

Review faces, captions, and high-motion scenes after export.
Use the original source for a second attempt.
Allow a small margin below 25MB for platforms that calculate size differently.

How it works

Three steps to finish the browser workflow.

1
Compress the source
Run the video through the Small compression preset.
2
Check the output size
Download the MP4 and compare it with the 25MB target.
3
Adjust if needed
Resize or trim the video, then compress again for a smaller result.