Video Compressor

Faster uploads, smaller files — private, watermark‑free compression

CRF: 23
When set, uses bitrate mode for more predictable size
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Recommended Settings

Social Uploads

Balanced quality for platforms; good clarity at smaller size.

  • Resolution720p
  • Quality (CRF)CRF 23
  • PresetMedium
  • Audio Bitrate128k
Email Attachments

Smaller file size for mail limits; acceptable clarity for speech.

  • Resolution480p
  • Quality (CRF)CRF 28
  • PresetSlow
  • Audio Bitrate96k
Archiving

Higher quality for long‑term storage; preserve original resolution.

  • ResolutionOriginal
  • Quality (CRF)CRF 20
  • PresetSlow
  • Audio Bitrate192k

Highlights

  • On‑device, private compression in your browser (WebAssembly).
  • No watermark added — export is clean and ready.
  • Adjust resolution, CRF, preset, and audio bitrate.
  • Ready for Instagram, WhatsApp, X/Twitter, YouTube, and email.
  • Free to use and fast — files never leave your device.

Shrink video files for faster sharing, quicker uploads, and lighter storage while keeping them looking sharp. Tune resolution (1080p/720p/480p), CRF, preset, and audio bitrate to reach a target size and quality that fits your use case. Lower resolution and higher CRF reduce size; slower presets squeeze out extra savings. All processing happens privately in your browser (WebAssembly) — files never leave your device. Output is watermark‑free and ready for Instagram, WhatsApp, X/Twitter, YouTube, and email. Perfect for saving mobile data, meeting email limits, and keeping archives lean.

How to Compress a Video?

  1. 1. Click "Choose Files" to upload your video.
  2. 2. Set resolution, CRF, preset, and audio bitrate as needed.
  3. 3. Click "Start Compression" and download when done.

Video Compression FAQ

What CRF should I use?

Typical range is 18–28. Lower CRF = better quality but larger files. Social uploads often work well at CRF 23; email attachments around CRF 28; archiving at CRF 20 for higher fidelity.

Recommended audio bitrate?

96k is fine for speech and mail attachments; 128k suits most social content; 192k is better for archiving or music. Keep stereo when needed.

H.264 vs H.265?

H.265 (HEVC) can produce smaller files at similar quality but encodes slower and may have lower device compatibility. H.264 is faster and widely supported.

Should I keep original audio settings?

Match bitrate to your use case. For speech 96–128k is usually sufficient; for music use 160–192k. Keeping sample rate and channels consistent helps quality.

Which preset to choose?

Slower presets usually compress more efficiently (smaller size) but take longer. Medium is a solid balance; use Slow for archiving and Fast for quick publishing.

How does resolution affect file size?

Lower resolutions reduce bitrate requirements and file size. 720p is good for social, 480p for email, and keeping original is best for archiving.