Compress video to 100 MB
Target size: 100 MB, aimed at about 99 MB
- Free to use
- Private
- No upload to the cloud
- No account needed
Compress a video
File
Compress
- Picture
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- Frame rate
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- Bitrate
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- Expected size
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Keep this tab open while it works.
This browser can’t compress video yet. It needs WebCodecs, which recent Chrome, Edge, Safari and Firefox on a computer have. Firefox on Android doesn’t. Try another browser, or use the photo compressor.
Short answer
To compress video to 100 MB, choose it above and keep the 100 MB size. The tool aims for about 99 MB, which holds about 6 minutes 18 seconds of video at 720p, or 2 minutes 52 seconds at 1080p, at good quality. It is a way to compress video to 100 MB or less for upload forms and sites that name their own 100 MB cap. Your video is converted in your browser and never uploaded to a server.
How to compress a video to 100 MB
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Choose the video
Pick the MP4, MOV, WebM or MKV you want to bring to 100 MB. The size of the original matters little: the tool works from the length of the video and the size you ask for, so a 1 GB file is handled like a small one.
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Keep the 100 MB size
The size is already set to 100 MB, and the tool aims for about 99 MB, a full megabyte under the line. To compress video under 100 MB, check the plan on screen: it shows the picture size, frame rate and expected size before you start.
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Compress
Press Compress video to reduce the video size to 100 MB. Your browser re-encodes the clip as H.264 with AAC sound, then measures the result. If it is over the target, the tool lowers the bitrate, then the resolution or frame rate, and runs again. It can shrink video to 100 MB only as far as the length allows, and it says so when quality drops.
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Download the MP4
Play the result, then download it. The original is not changed, and the new file holds only picture and sound, so it carries no watermark.
How long of a video is 100 MB
To compress video below 100 MB, the length of the video decides, and at 100 MB there is room for several minutes. Good quality here means at least 0.07 bits per pixel at 30 frames per second, plus 96 kbit/s for the sound. The table shows the longest video that keeps good quality at each resolution. A longer video still fits: the tool lowers the resolution, and if needed the frame rate, and says when quality drops. The email services on this site stop at 25 MB or lower, so for email see compress video to 25 MB.
| Resolution | Longest video in 100 MB | Data needed per minute |
|---|---|---|
| 1080p | 2 min 52 s | About 33 MB (4.45 Mbit/s) |
| 720p | 6 min 18 s | About 15 MB (2.0 Mbit/s) |
| 480p | 13 min 22 s | About 7.2 MB (0.96 Mbit/s) |
Figures from this tool’s own settings, checked 8 October 2026.
Questions about 100 MB videos
How to compress a video to 100MB?
Choose the video above, keep the 100 MB size and press Compress video. The tool plans the bitrate from the length of the video, aims for about 99 MB and checks the result. When a video is too long for 100 MB, the plan warns you before you start and the result shows how far over it is.
How to make a video under 100MB?
Choose it above and keep the 100 MB size. A video of several minutes keeps a clear picture at this size, and a longer one is scaled down to fit. The plan on screen shows the picture size and the expected size before you start.
How many minutes is a 100MB video?
At good quality, about 2 minutes 52 seconds at 1080p, 6 minutes 18 seconds at 720p and 13 minutes 22 seconds at 480p. Straight from an iPhone, a minute of 1080p video is 70 to 105 MB, according to Apple, so a one-minute clip is already near 100 MB before it is compressed.
How to compress 1GB video to 100MB?
What decides the result is the length of the video, not how big the original was. A clip of a few minutes from a 1 GB file can come down to 100 MB with a clear picture. A much longer one is scaled down, and the tool says so before you start and tells you by how much a result is still over.
Can I compress a 100MB video to 10MB?
To compress video 100 MB to 10 MB, the video has to be short. About 1 minute 17 seconds fits in 10 MB at 480p with good quality, and a longer video is scaled down further, with a warning in the plan. For strict work email, which counts the encoded message, the figure is 58 seconds: see compress video to 10 MB.
Can I compress video to 100MB without losing quality?
Not entirely, because every compression discards some detail. A 100 MB target leaves a lot of room, so a video of several minutes keeps good quality at 720p. Play the result before you download it. The page video compressor without losing quality explains how to keep the loss small.
Is there a 100MB video compressor that works without uploading?
This one does. It is free, needs no sign-up, and converts the video in your browser, on your own device, so nothing is sent to a server. It works in current Chrome, Edge and Safari, and in Firefox on a computer.
Can I compress video to 100MB online free?
Yes. The page runs in your browser, so there is nothing to install, and it sets no limit on the size of the file you start with. A large original simply takes longer, because the work is done on your own device.
On iPhone
Video Compressor: Metras
Our iPhone app makes smaller copies of the videos in your library, right on the device. Choose 25 MB, 20 MB or 10 MB, or enter a size of your own such as 100 MB, see the estimate before you start, and compare the copy with the original afterwards. Nothing is uploaded to a server, large batches run in the background with Premium, and your originals stay in Photos until you decide.
Coming soon to the App Store
