Free Video Compressor — Reduce Video File Size Online
Got a video that’s too big to email, upload, or send on WhatsApp or Discord? Fix it here. Compress MP4, MOV, MKV, AVI and WebM right in your browser — your file never leaves your device, and there’s no watermark.
How to Compress a Video for Free
- Click Choose a video and select the file that’s too large.
- Pick a target — email/WhatsApp (25 MB), Discord (10 MB), or a custom size.
- Click Compress Video and wait for it to finish.
- Download your smaller video. Done — no app, no signup, no watermark.
Why Is My Video Too Big to Send?
Most messaging and email services cap attachments: Gmail and Outlook stop at 25 MB, Discord’s free tier at 10 MB, and WhatsApp at 16 MB. Phone cameras now shoot in 4K at high bitrates, so even a short clip blows past those limits. Compressing re-encodes the video at a lower bitrate (and, if needed, a smaller resolution) so it fits — while keeping it watchable.
Common Fixes
- Compress a video for email — target 25 MB and it will attach to Gmail or Outlook.
- Compress a video for WhatsApp — target 16–25 MB for a clean send without WhatsApp’s heavy auto-compression.
- Compress a video for Discord (free) — target 10 MB to upload without Nitro.
- Make a video smaller without losing quality — use the “Keep quality” preset; it trims bitrate first before touching resolution.
Is It Safe and Private?
Yes. This tool runs entirely in your browser using WebAssembly. Your video is never uploaded to a server, so nothing is stored, shared, or seen by anyone. When you close the tab, it’s gone.
FAQ
Does it add a watermark?
No. The compressed video is clean, with no watermark or branding.
What file types are supported?
MP4, MOV, MKV, AVI and WebM. Output is MP4 (H.264), which plays everywhere.
Is there a file size limit?
Because it runs in your browser, very large files (over ~1 GB) depend on your device’s memory. For huge files, use a desktop browser.
Will quality drop?
Some quality is traded for size. The presets aim for the best quality that still fits the target size.