About Video Compressor
Video Compressor re-encodes uploads to a smaller MP4 (H.264 + AAC) file so clips fit email limits, upload faster to social platforms, and use less storage on phones and laptops. Creators trim delivery time for client reviews; marketers meet campaign portal caps; teachers submit classroom clips through strict LMS forms. You choose a compression level to trade visual quality against file size—the same creative decision editors make in desktop suites, but in the browser.
Output is always MP4 for broad compatibility; unusual or proprietary source codecs may need a local transcode first.
Re-encoding is lossy—each aggressive pass can add softening, banding in gradients, and blockiness in fast motion—so keep a master copy of originals when you might re-edit. Audio is preserved when present; silent clips stay silent. Very long or high-resolution sources may hit upload or processing time limits on shared hosting.
Do not upload footage you are not allowed to process or redistribute—copyright and privacy rules still apply. For confidential interviews or unreleased products, prefer offline tools approved by your security team. For public social clips, compression is usually the fastest path to a shareable file.
Compress video for WhatsApp and other apps by uploading MP4, MOV, or WebM, choosing a compression level, and downloading a smaller MP4.
Supported formats
This tool accepts Video/Mp4, Video/Quicktime, Video/Webm, Video/X-Matroska, Video/X-Msvideo. Always respect the upload limit shown next to the form before sending large documents.
How to use
- Upload your file in the file field.
- Complete the extra fields (password, page ranges, quality, and similar).
- Click Run tool.
- Download or read the output below.
If processing fails, check the upload size limit on the form, try fewer or smaller files, or retry in a fresh tab.
Security & privacy
Files and text you send are processed to produce your result and are not intended for long-term storage on your behalf. Avoid uploading passports, bank details, medical records, or legally sensitive material unless you accept the risks of any online service. For confidential workflows, prefer offline software on a device you control. Read our privacy policy for site-wide practices.