Vexelloom
VexelloomSTUDIO
Hardware-Accelerated Client-Side Video Compressor

Free Video Compressor Online

Reduce video file size by up to 80% without quality loss. Shrink MP4, MOV, and WebM videos for Discord, WhatsApp, and email attachments with 100% in-browser privacy.

Drop your video here to compress

Shrink MP4, MOV, WebM, MKV, and AVI videos with zero server uploads. Shrink file sizes for Discord, WhatsApp, email, or web streaming.

100% In-Browser Privacy · Max 250 MB · Zero Watermarks

How to Compress Videos in 3 Easy Steps

Shrink high-bitrate clips, iPhone 4K recordings, and screen captures in seconds. Need to convert formats? Try our Universal Video Converter or make animated clips with our Video to GIF Converter.

1

Upload Video

Select your MP4, MOV, WebM, MKV, or AVI video up to 250 MB. Your file is rendered strictly in local browser memory.

2

Choose Preset

Pick Balanced (50%), High (75%), Discord (< 25MB or < 8MB), or Email (< 16MB). Trim unwanted seconds if needed.

3

Download Compressed Video

Click Compress Video Now. Preview the output in the built-in player and download your lightweight video with zero watermarks.

Competitor Comparison

Vexelloom vs Other Online Video Compressors

Compare Vexelloom with FreeConvert, Clideo, Kapwing, and CloudConvert.

FeatureVexelloom Video CompressorClideo / FreeConvert / Kapwing
Server Uploads & Privacy100% In-Browser (Files never leave your computer)Uploaded to remote cloud servers (privacy risk)
Watermarks on Free PlanZero Watermarks (Clean, original output)Mandatory watermarks or restricted export resolution
Discord & Email Presets (< 25MB / < 8MB)1-Click Automatic Bitrate CalculationManual guessing or locked behind paid plans
Account Registration / Sign-upNo Sign-up, No Credit Card, 100% FreeRequires email registration or monthly subscription (£9-£20/mo)
Free File Size CeilingUp to 250 MB per file in-browserOften restricted to 50 MB or 100 MB on free tiers

Frequently Asked Questions About Video Compression

Answers regarding video bitrates, Discord upload limits, and compression quality.

Discord enforces strict upload file size limits: 25 MB for standard users (and formerly 8 MB). In Vexelloom Video Compressor, upload your video and click the "Discord < 25MB" or "Discord < 8MB" preset button. Vexelloom automatically computes the optimal video bitrate and resolution based on your video’s duration to ensure your file fits safely under the threshold with crisp clarity.

The best way to compress video without noticeable quality loss is to use our "Balanced" compression preset. This uses modern H.264/AVC encoding with an optimal 2.5 Mbps variable bitrate, cutting file size by 50% to 60% while maintaining Full HD 1080p resolution and smooth framerates.

No. Unlike traditional cloud converters that upload your entire video file to remote cloud servers, Vexelloom processes 100% of your video data locally inside your browser using WebAssembly and hardware-accelerated MediaStream APIs. Your private videos never leave your device.

You can compress MP4, WebM, Apple QuickTime MOV, MKV, and AVI videos up to 250 MB in file size. You can export directly to universal MP4 or lightweight WebM.

No! There are no watermarks, no account registrations, and no subscription fees. You can compress as many videos as you need completely free.

Need to transcode or compress images?

Explore our image compressor and universal video transcode suite.

Universal Video ConverterImage Compressor