Video Compressor — Reduce Video Size Free

Make a video small enough to send. Pick a size — under 16 MB for WhatsApp, 25 MB for Discord and email, or any size you need — and the tool works out the best quality for it. Phone videos usually shrink by 50–80% with no visible difference. Works on iPhone, Android, Windows and Mac with MP4 and MOV, free, with no sign up, no watermark and no file size limit — and your videos never leave your device.

100% private — compressed in your browser
Compress to
Or by quality
Resolution

    Pick a size limit and the tool works out the quality for you. If the video is long for the size you chose, it lowers the resolution so it stays sharp. Output is MP4 (H.264), which plays everywhere.

    How to compress a video

    1. Add your videoDrop one or more MP4 or MOV videos from your phone, camera or screen recorder.
    2. Pick a sizeUnder 16 MB for WhatsApp, 25 MB for Discord or email, another size, or a quality level.
    3. Compress and downloadClick Compress video. You see the old and new size, then download the smaller MP4.

    Which size should I pick?

    WhatsApp — 16 MBSends in normal quality without being cut. Good for clips up to about 2–3 minutes.
    Discord & email — 25 MBDiscord’s free upload limit and the Gmail and Outlook attachment limit.
    Websites & storage — qualityUse High or Medium quality to save space without a size limit — ideal for backups and web pages.

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    Frequently asked questions

    How do I compress a video for free?

    Drop your video into the box above, choose a size such as Under 25 MB, and click Compress video. The smaller MP4 downloads straight away — free, with no sign up, no watermark and no file size limit.

    How do I compress a video for WhatsApp?

    Choose Under 16 MB and click Compress video. WhatsApp sends videos up to 16 MB in normal quality without cutting them, so the compressed MP4 goes through in one message.

    How do I make a video small enough for Discord or email?

    Choose Under 25 MB. Discord’s free upload limit and most email attachments (Gmail, Outlook) allow 25 MB, so the video sends without a link.

    How much can a video be compressed without losing quality?

    Phone videos are recorded at a very high bitrate, so most shrink by 50–80% with no visible difference using High or Medium quality. Very small sizes for long videos lower the sharpness — the tool warns you when that happens.

    Why is my compressed video blurry?

    The size you picked is too small for the video’s length. A 10-minute video in 16 MB has very little data per second. Pick a bigger size, choose Medium quality, or trim the video first.

    Does it work on iPhone and Android?

    Yes. Open this page in Safari or Chrome on your phone, choose the video from your gallery and tap Compress video. Use Save to Photos to keep the smaller copy.

    Can I compress large videos over 1 GB?

    Yes. Nothing is uploaded, so there is no size limit. A computer handles files of several gigabytes; on a phone, keep files under about 1 GB.

    Which formats can I compress?

    MP4 and MOV videos, including iPhone HEVC videos in Chrome, Edge and Safari. The compressed file is an MP4 (H.264), which plays on every phone, computer and app.

    Can I compress several videos at once?

    Yes. Drop as many as you like; each one is compressed to the size you chose and gets its own Download button.

    Is my video uploaded anywhere?

    No. The video is compressed inside your browser and never leaves your device.

    Reads videos with mp4box.js (BSD-3) and writes MP4 with mp4-muxer (MIT).

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