TFT

Compress Video Online Free — Reduce File Size Without Uploading

Reduce your video file size directly in your browser. Set a target bitrate, choose a codec, and download the compressed file. No uploads, no watermarks, and no account required.

What Compression Does (And What It Costs)

Compression reduces file size by lowering the bitrate — the amount of data used per second of video. Lower bitrate = smaller file = some quality loss. That's the trade-off. There's no way around it.

The encoder rewrites every frame to fit within your chosen data budget. At moderate compression (4-6 Mbps for 1080p), most people won't notice much difference. At aggressive compression (1-2 Mbps), fast motion gets blocky and colors band. But the file is tiny.

This tool runs locally in your browser. No upload means faster processing and complete privacy. A 100 MB video might compress to 20-30 MB depending on your settings.

When You Need This

Email attachments

Email caps attachments at 10-25 MB. A 2-minute 1080p video can be 500 MB+. Compress to 1-2 Mbps and that same video fits under 20 MB. Quality drops but it's shareable via email.

Website background videos

Landing page backgrounds should be under 5 MB for fast loading. Compress a 30-second clip to VP9 at 720p and you get 3-5 MB. Good enough for background use, loads fast on mobile.

Freeing phone storage

4K phone videos eat storage — 3-5 GB for 10 minutes. Compress to 1080p at 4 Mbps and you get ~300 MB. Still watchable, way less space. Keep the compressed version, delete the original.

Slow upload connections

Hotel Wi-Fi uploading 2 GB takes forever. Compress to draft quality (1-2 Mbps) first — file drops to a few hundred MB. Uploads in minutes. Send the full quality version later if needed.

Platform upload limits

Discord free tier: 25 MB limit. Some Slack workspaces: 1 GB. Compress your clip to fit the platform's cap. Share directly in chat instead of using cloud links.

Settings That Affect File Size

Bitrate (Most Important)

Bitrate controls data per second of video. Higher = better quality, larger file. Lower = worse quality, smaller file.

1 Mbps — Small files, visible artifacts. Good for email, previews.
2-4 Mbps — Good web quality. YouTube, social media.
5-8 Mbps — High quality 1080p. Minimal visible loss.
10+ Mbps — Near-original quality. Large files.

Codec: H.264 vs VP9

H.264 plays everywhere — phones, TVs, old computers. VP9 produces ~30% smaller files at the same quality but doesn't play on some older devices. Use H.264 for sharing, VP9 for web embedding.

Resolution

Halving resolution (4K to 1080p, or 1080p to 720p) cuts file size significantly. 720p looks fine on phones and small screens. 4K is overkill for most uses anyway.

Format: MP4 vs WebM

MP4 = universal compatibility. WebM = smaller files, browser-optimized. If you're embedding on a website, WebM. If you're sending to people, MP4.

How to Compress Video

1

Upload your video

Drag or select your file. It stays on your device — no server upload. You'll see the original file size immediately.

2

Set compression level

Drag the bitrate slider. The estimated output size updates as you move it. For smaller files, open Advanced Options and switch to VP9 or reduce resolution.

3

Compress and download

Click Compress and wait. Processing time depends on video length. When done, you'll see the new file size and savings percentage. Download if satisfied.

Frequently Asked Questions

Open the tool, upload your video, set a lower bitrate using the slider, and click Compress. The tool runs entirely in your browser using your own device hardware. There are no watermarks, no account required, and the file never leaves your device.
Bitrate is the amount of data used per second of video, measured in megabits per second (Mbps). Reducing the bitrate lowers the file size. At very low bitrates, the encoder starts merging nearby pixel values, which causes visible blockiness or blurring in fast-moving scenes. For web sharing, a bitrate between 1 and 4 Mbps is usually a good balance.
Compression requires your device to decode every frame of the original video and then re-encode it at the new bitrate. This is CPU-intensive work. Older processors take longer than newer ones. Closing other applications during compression gives your processor more resources to work with and can reduce the time significantly.
There is no server-side file size limit because the tool runs entirely in your browser. The practical limit is your device's available RAM. A standard laptop can typically handle files up to several gigabytes. Very large files, such as raw 4K footage above 10GB, may cause the browser tab to run out of memory before finishing.
No. The file is read from your local drive and processed inside your browser's memory. It is never uploaded to a server. No third party, including us, has access to your video at any point during or after compression.
VP9 generally produces smaller files at the same visual quality compared to H.264, because it uses a more efficient compression algorithm. However, H.264 plays on a wider range of devices, including older phones and TVs. If your target device supports VP9, use it for a smaller file. If you are unsure, H.264 is the safer choice.

Video Metadata Viewer

See Video or Audio files metadata

Video Player

Play any video file format instantly, Supports subtitles

Video Format Converter

Convert between video formats, Supports wide range of video formats

Change Video FPS

Change video frame rate to 24fps, 30fps, 60fps or custom FPS

Crop Video

Crop videos online - remove unwanted edges and reframe

Enhance Video Quality

Upscale, sharpen, denoise and improve video quality

Extract Audio from Video

Extract audio from video files - save as MP3, AAC, or WAV

Resize Video Dimensions

Resize video to 4K, 1080p, 720p or custom dimensions

Rotate Video

Rotate videos 90°, 180° or 270° - fix orientation

Video Color Space Transformation

Adjust brightness, contrast, saturation, hue and more

Video Grayscale

Convert videos to black and white instantly

Video Overlays

Add watermarks, logos or image overlays to videos

Video Transparency Maker

Adjust video opacity and transparency with custom background