How do I compress an MP4 to 100 MB?

Drop the MP4 onto the compressor above. The 100 MB target is already set, so just click Compress and download the result.

Will the file be exactly 100 MB?

It aims to land at or just under 100 MB. 100 MB here means 100,000,000 bytes, so it also fits sites that count 1 MB as 1,048,576 bytes.

How much quality will I lose at 100 MB?

100 MB is roomy for anything up to ten minutes or so; hour-long recordings will need a lower resolution. For a 1-minute clip, 100 MB leaves about 13.3 Mbps for video and audio together (1080p, close to the original); a 3-minute clip gets 4.4 Mbps (1080p, high quality).

My MP4 is already smaller than 100 MB. What now?

Then it already fits, and compressing it further would only cost quality. Upload it as it is, or pick a smaller target if you need it smaller still.

What if my MP4 can't get down to 100 MB?

If a video is too long for 100 MB, the quality would drop too far. Trim it to the part you need, or pick a larger size.

What is 100 MB typically needed for?

Common reasons: long screen recordings, lectures and webinars; forms and file-sharing tools with a 100 MB cap; archiving phone videos without filling your storage. Limits vary by site, so check the exact number where you're uploading.

Yes. It's compressed inside your browser and never uploaded.

MP4→smaller MP4→MP3 JPG→smaller MP4→WebP PNG→smaller MP4→MOV MP3→smaller MP4→GIF PDF→smaller MP4→WAV WebP→smaller MP4→WebM HEIC→smaller MP4→MKV DOCX→smaller MP4→M4A GIF→smaller MP4→AVI SVG→smaller MP4→FLAC MOV→smaller MP4→AAC AVIF→smaller MP4→OGG M4A→smaller MP4→WMV MP4→Opus WebM→smaller MP4→M4V MP4→FLV MKV→smaller MP4→MPEG MP4→3GP XLSX→smaller MP4→WMA MP4→TS EPUB→smaller MP4→MPG MP4→AIFF AVI→smaller MP4→AMR MP4→VOB FLAC→smaller PNG→JPG JPG→PNG PPTX→smaller PNG→WebP JPG→WebP AAC→smaller WebP→PNG WebP→JPG ZIP→smaller HEIC→PNG HEIC→JPG TIFF→smaller PNG→JPEG JPG→JPEG OGG→smaller JPEG→PNG JPEG→JPG Opus→smaller PNG→PDF JPG→PDF 7Z→smaller PDF→PNG PDF→JPG ODT→smaller HEIC→WebP PDF→DOCX TAR.GZ→smaller DOCX→PDF JPEG→WebP ODS→smaller WebP→JPEG PNG→GIF ODP→smaller JPG→GIF GIF→PNG TAR.BZ2→smaller GIF→JPG MOV→MP4 TAR.XZ→smaller WebP→PDF HEIC→JPEG WebP→GIF GIF→WebP HEIC→PDF MP3→WAV WAV→MP3 JPEG→PDF PDF→JPEG SVG→PNG SVG→JPG HEIC→GIF MOV→MP3 GIF→MP4 JPEG→GIF GIF→JPEG PNG→AVIF JPG→AVIF AVIF→PNG AVIF→JPG MP3→M4A M4A→MP3 GIF→PDF SVG→PDF PNG→SVG JPG→SVG PDF→SVG SVG→WebP MOV→WebP WebM→MP4 WebP→AVIF AVIF→WebP WebP→SVG SVG→JPEG MKV→MP4 HEIC→AVIF JPEG→AVIF AVIF→JPEG JPEG→SVG MOV→GIF GIF→MOV WebM→MP3 AVIF→PDF MP3→FLAC FLAC→MP3 AVI→MP4 MKV→MP3 GIF→AVIF AVIF→GIF SVG→GIF GIF→SVG WebM→WebP MOV→WAV XLSX→PDF CSV→PDF EPUB→PDF PDF→EPUB MOV→WebM WebM→MOV MKV→WebP PNG→ICO JPG→ICO ICO→PNG ICO→JPG MP3→AAC WAV→M4A AAC→MP3 M4A→WAV AVI→MP3 MOV→MKV MKV→MOV MOV→M4A DOCX→EPUB EPUB→DOCX CSV→DOCX PDF→TXT DOC→PDF TXT→PDF

Compress MP4 to 100 MB

Shrink an MP4 to 100 MB or less to shrink long recordings under 100 MB. Free: in your browser on computers; on phones, in our fast cloud and deleted automatically.

In your browser (fast cloud on phones)
Same format, smaller file
Batch & ZIP download

How to compress an MP4 to 100 MB

1
Add your MP4
Drop one or more MP4 files onto the compressor above, paste them, or click to browse.
2
100 MB is preset
The target is already set to 100 MB, and each file is compressed to land at or just under it. You can switch to another size or a percentage to reduce by.
3
Compress
Click Compress. The MP4 is processed in your browser; nothing is uploaded.
4
Check and download
Check the new size, then download each file or all of them as a ZIP.

What fits in 100 MB

A 100 MB file has a fixed bit budget, so the longer the clip, the lower the bitrate and resolution it can have.

Clip length	Video + audio bitrate	Realistic quality
1 min	13.3 Mbps	1080p, close to the original
3 min	4.4 Mbps	1080p, high quality
5 min	2.7 Mbps	1080p or 720p
10 min	1.3 Mbps	720p
30 min	444 kbps	360p, fine on a phone

Rough guide for H.264-class video. Static scenes and screen recordings look better than fast action at the same bitrate.

What 100 MB is typically for

Long screen recordings, lectures and webinars
Forms and file-sharing tools with a 100 MB cap
Archiving phone videos without filling your storage

Limits vary by site and change over time; check the exact number where you're uploading.

How MP4 gets smaller

Re-encodes the video at a lower bitrate (and resolution on Strong); audio is re-encoded to AAC.

Compress MP4 by quality level instead →

Neighbouring sizes

Or compress MP4 by level and set any size or percentage yourself.

Got a mix of formats? Compress any video to 100 MB.

Compress other videos

All videos →

MP4 to 100 MB: frequently asked questions

Free, private and in your browser

MP4 to 100 MB, done.

Drop the file, keep the preset, download the result. No sign-up, no watermark.

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Most conversions never leave your device
Cloud files deleted automatically
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