Video Compressor
Compress MP4, WebM, MOV, AVI — up to 90% smaller, 100% private
Drop video files here
or click to browse — MP4, WebM, MOV, AVI, MKV
Video Compressor
Compress your videos by up to 90% with minimal quality loss — instantly, privately, and for free. Supports MP4, WebM, AVI, MOV, and more. No uploads, no signup, no watermarks.
Everything you need to compress video
Powerful features designed for maximum compression with minimal quality loss.
Up to 90% Compression
Reduce video file size by up to 90% with advanced H.264/H.265 compression. Dramatically smaller files with minimal quality loss.
100% Private
All processing happens in your browser. Your videos never get uploaded to any server — zero data leaves your device.
Quality Control
Choose from preset levels or manually adjust bitrate, resolution, and codec. Fine-tune the balance between size and quality.
Multi-Format Support
Compress MP4, WebM, AVI, MOV, MKV, and more. Any video your browser can play, we can compress — all locally.
No Signup Required
No account, no email, no registration. Just open the page and start compressing — instantly and anonymously.
Unlimited & Free
Compress as many files as you want, as often as you want. No daily limits, no premium tiers, no watermarks — ever.
Why compress your videos?
Smaller videos load faster, cost less to store, and are easier to share — without sacrificing visual quality.
Faster Uploads
Compressed videos upload 5–10x faster to YouTube, social media, cloud storage, or email attachments.
Save Storage Space
Reclaim gigabytes of storage on your device, cloud, or server. A 1 GB video can become 100 MB with minimal quality loss.
Better Web Performance
Compressed videos load instantly on websites. Improve Core Web Vitals, reduce bounce rates, and boost SEO rankings.
Reduced Bandwidth
Save bandwidth costs for both you and your viewers. Critical for high-traffic websites and mobile users on limited data plans.
Easier Sharing
Send videos via email, messaging apps, or social media without hitting file size limits. Most platforms cap uploads at 25–100 MB.
Mobile Friendly
Compressed videos stream smoothly on mobile devices with limited bandwidth. Better playback experience for all viewers.
When to use a video compressor
Web & Social Media
Compress videos before uploading to YouTube, Instagram, TikTok, or your website for faster processing and upload.
Email Attachments
Reduce video size to fit email attachment limits (typically 25 MB). Send video clips without using cloud links.
Cloud Storage
Save cloud storage space by compressing videos before uploading to Google Drive, Dropbox, or iCloud.
Website Embed
Embed compressed MP4 videos on your website for faster page load and better Core Web Vitals scores.
Mobile Sharing
Send videos via WhatsApp, Telegram, or messaging apps without hitting file size limits or long send times.
Archival Storage
Compress old video archives to save disk space. Store more videos on the same drive without losing content.
Compress video in 3 simple steps
No technical knowledge needed. Just upload, choose settings, and download.
Upload Video
Drag and drop your video file or click to browse. Supports MP4, WebM, AVI, MOV, MKV, and more.
Choose Compression
Select a preset compression level or manually adjust bitrate, resolution, and codec settings.
Download Video
Download your compressed video instantly. No watermarks, no signup, no limits — ready to share.
Tips for the best video compression results
Choose the Right Codec
H.264 offers the best compatibility. H.265 (HEVC) provides 30–50% better compression but may not play on older devices.
Lower Resolution for Web
For web and social media, 720p is usually sufficient. 1080p is only needed for large screens or archival quality.
Adjust Bitrate Smartly
For 1080p, 3–5 Mbps is a good range. For 720p, 1.5–3 Mbps works well. Lower bitrate = smaller file but more compression artifacts.
Use Two-Pass Encoding
Two-pass encoding produces better quality at the same file size. It analyzes the video first, then optimizes bitrate distribution.
Trim Unnecessary Footage
Cut intro, outro, and boring sections before compressing. Shorter videos compress better and are more engaging.
Test Before Batch
Compress one file first to verify quality. Then apply the same settings to all files in batch mode for consistent results.
Choose your compression level
Different scenarios call for different compression settings. Pick the level that matches your needs.
Light
30–50%
Minimal quality loss. Best for archival or high-quality streaming where visual fidelity matters most.
Medium
50–70%
Good balance of quality and size. Ideal for web upload, social media, and general sharing.
Aggressive
70–90%
Maximum compression. Small files for email, messaging, or bandwidth-limited scenarios.
Video Compressor — Frequently Asked Questions
Yes, completely free with no limits. Compress as many videos as you need — no daily caps, no signup, no watermarks. Convertly is 100% free, supported by ads and optional donations.
No. Convertly processes all video compression entirely in your browser using client-side JavaScript and WebCodecs API. Your videos never leave your device, ensuring complete privacy.
Compression depends on the original file. Most videos can be reduced by 50–80% with minimal visible quality loss. Aggressive compression can reduce size by up to 90% with some quality trade-off.
Yes. Convertly supports batch compression — select multiple video files and compress them all in one go. Each file is processed independently and downloaded separately.
Convertly supports MP4, WebM, AVI, MOV, MKV, and most other common video formats. If your browser can play it, we can compress it — all processing happens locally.
Some quality reduction is inevitable with lossy compression. However, at moderate compression levels, the difference is virtually imperceptible. You control the quality vs. size trade-off.
Yes. You can select from preset compression levels (light, medium, aggressive) or manually adjust bitrate, resolution, and codec settings for precise control over output quality and file size.
For web and social media, use H.264 codec at 720p–1080p with 2–4 Mbps bitrate. This produces small files with good quality that upload and stream quickly on most platforms.
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