A single frame of 4K video (3840x2160) contains 8.3 million pixels. At 30 frames per second, that's 249 million pixels per second of video. Even with compression codecs, this adds up fast.

| Resolution | Typical File Size (1 min) |

|---|---|

| 4K (2160p) | 300-500 MB |

| 1080p | 100-200 MB |

| 720p | 50-100 MB |

| 480p | 20-50 MB |

| 360p | 10-20 MB |

Bitrate determines how much data is used per second of video. Higher bitrate = better quality but bigger files. Most cameras and screen recorders use unnecessarily high bitrates.

Video files include an audio track that can account for 5-15% of the total file size. Even a silent video often contains a silent audio stream.

Open the Video Editor and upload your video file (up to 500MB). Supported formats: MP4, WebM, AVI, MOV, MKV, FLV.

Click Compress in the left sidebar. You'll see a quality slider.

The quality slider lets you find the sweet spot between file size and visual quality:

• •High quality (80-100%) - Minimal visible difference, moderate size reduction (20-40%)
• •Medium quality (50-70%) - Good balance, significant size reduction (50-70%)
• •Low quality (20-40%) - Noticeable quality loss, maximum size reduction (70-90%)
• •Very low (1-20%) - Heavy compression for when file size is all that matters

For most purposes, medium quality (50-70%) gives you the best results - you'll barely notice the difference visually, but the file size drops dramatically.

Click the compress button to process. Your compressed video downloads automatically with no watermark.

Most email providers cap attachments at 25MB (Gmail, Outlook). If your video is 150MB, you need aggressive compression:

1. 1First, consider if you need full resolution - resize to 720p if the content allows
2. 2Set compression quality to 40-50%
3. 3If still too large, trim the video to the essential portion

Pro tip: A 2-minute, 720p video at medium compression typically comes in around 10-15MB - well within email limits.

• •WhatsApp: 16MB limit on most devices
• •Telegram: 2GB limit (generous!)
• •Discord: 25MB for free users, 50MB for Nitro
• •iMessage: No hard limit, but large files fail over cellular

For WhatsApp, resize to 480p and use medium-low compression. The small screen won't show the quality difference.

Hosting videos on your website? Smaller files mean faster load times, better SEO, and lower bandwidth costs.

• •Homepage hero videos: Compress aggressively - autoplay videos should be tiny
• •Product demos: Medium compression balances quality and loading speed
• •Background videos: Maximum compression - they're decorative, not informational

Screen recordings of code editors, dashboards, and presentations compress extremely well because:

• •Large areas of the frame stay static between frames
• •Limited color palette compared to real-world footage
• •Text and UI elements remain sharp even at lower bitrates

You can often compress a screen recording to 30-40% quality without any visible quality loss.

Compression reduces the bitrate - the amount of data used per second. The video stays the same resolution and dimensions, but uses fewer bits to represent each frame.

• •Pros: Maintains original resolution, adjustable quality
• •Cons: Heavy compression introduces visible artifacts (blockiness, banding)

Resizing changes the pixel dimensions of the video. A 4K video resized to 720p is physically smaller in every way.

• •Pros: Dramatic file size reduction, no compression artifacts
• •Cons: Can't be undone - you lose detail permanently

For maximum file size reduction with acceptable quality:

1. 1Resize first - drop to 720p or 1080p if the content allows
2. 2Compress second - use medium quality on the already-resized video
3. 3Trim if needed - remove unnecessary portions

This three-step approach can easily reduce a 500MB file to under 25MB.

HandBrake is powerful but requires installation, has a complex interface, and is overkill for simple compression tasks. Our tool does the job in seconds.

Cloud compressors upload your video to their servers. This means:

• •Slow uploads - you wait for the file to upload before compression even starts
• •Privacy risk - your video sits on someone else's server
• •Watermarks - most free tiers add watermarks
• •File size limits - many cap at 100MB or less for free users

Our compressor processes everything locally in your browser. No upload, no privacy risk, no watermark.

FFmpeg is the gold standard for video processing, and it's actually what powers our editor under the hood (via WebAssembly). But instead of memorizing commands like:

> ffmpeg -i input.mp4 -vcodec libx264 -crf 28 output.mp4

...you just move a slider.

At moderate compression, quality loss is nearly invisible on normal viewing screens. You might notice:

• •Slight softness in areas with fine detail (hair, fabric textures)
• •Minor banding in smooth gradients (sky, walls)
• •Slight blockiness during fast motion scenes

At heavy compression, these artifacts become more pronounced:

• •Macro-blocking - visible rectangular blocks, especially in dark scenes
• •Color banding - smooth gradients become stepped
• •Motion blur - fast movements leave trails or artifacts

Quality matters for:

• •Professional presentations to clients
• •Portfolio videos showcasing your work
• •Content where visual detail is the point (photography, design)

Quality matters less for:

• •Internal team communications
• •Quick demos and walkthroughs
• •Social media stories (they get compressed again by the platform anyway)
• •Video messages to friends and family

Typical compression can reduce file size by 40-90% depending on the quality setting and source material. Screen recordings compress better than real-world footage.

At medium quality settings (50-70%), most people can't tell the difference between the original and compressed version on normal screens. Heavy compression (below 30%) will show visible quality loss.

Currently, our editor handles one video at a time. Upload, compress, download, then do the next one. Batch processing is on our roadmap.

The compressed video exports in a widely compatible format (typically MP4 with H.264) that works on virtually all devices and platforms.