Video Compressor — Reduce File Size for Any Platform

Free all-in-one video compressor. Reduce file size for WhatsApp, Discord, Telegram, Instagram, TikTok, YouTube, Email — choose from 16 platform presets or set your exact target size. Smart auto mode, custom CRF, codec, resolution and FPS controls. Compare before and after. No watermarks.

How to Compress a Video

1
Upload your video

Drag and drop or select a video file (MP4, WebM, MOV, AVI, MKV). Supports up to 1 GB.

2
Choose compression mode

Use Quick for smart auto-optimization, Target Size for exact file size, Platform for social media presets, or Custom for full manual control.

3
Review the estimation

Check the live size estimation showing original vs. compressed size and reduction percentage before starting.

4
Compress and download

Hit Compress Video, watch the progress with ETA, then download your smaller file. Processing happens entirely on your device.

Reduce video file size with precise quality control

Drop video here or browse
MP4, WEBM, MOV, MKV, AVI, WMV, FLV, 3GP ·
Upload a file to start
File Size: Resolution: Codec: FPS: Bitrate: Duration: Audio:
Compression Settings
Smart auto-optimization based on your video. Reduces size while keeping great quality.
Target file size 10 MB
1 MB100 MB
Calculated bitrate: —  ·  CRF: —
Format
Codec
VP9 is slower to encode
Resolution
Frame Rate
Quality (CRF)
23
HighLow
Lower CRF = higher quality, bigger file. Higher CRF = smaller file, lower quality.
Audio
Audio bitrate
Start End
Original size —
Estimated size —
Reduction —
0% Encoding...
Compression Complete!
Before
→
After
Download Compressed Video

Features

16 Platform Presets Target Size Mode Smart Quick Mode Full Custom Control

What you can do

  • Compress videos for messengers — fit within the 16 MB WhatsApp or 8 MB Discord Free limit
  • Optimize clips for social media — adjust resolution, FPS and bitrate to match platform requirements
  • Shrink screen recordings or webinars for email attachments (under 10–25 MB)
  • Compress phone videos without visible quality loss — smart mode picks optimal settings automatically
  • Convert heavy MOV or MKV files into compact MP4 or WebM
  • Trim and compress in one step — remove unwanted parts and reduce file size simultaneously

Frequently Asked Questions

How does the video compressor work?

The tool uses FFmpeg WebAssembly to process video directly in your browser. It re-encodes the video with optimized settings (codec, CRF, resolution, bitrate) to achieve smaller file sizes while maintaining visual quality

What is the maximum file size?

You can upload videos up to 1 GB. Files over 500 MB may process slower depending on your device. All processing happens in your browser, so performance depends on your computer's memory and processor speed.

Will compression reduce video quality?

Some quality loss is inherent in compression, but with smart settings (CRF 20-25), the difference is barely noticeable. Quick mode automatically balances size and quality. You can see before/after comparison in the results.

Can I compress video for WhatsApp/Discord?

Yes! Use the Platform mode with 16 presets optimized for WhatsApp (16 MB), Discord Free (8 MB), Discord Nitro (50 MB), Instagram, TikTok, YouTube, Email, and more. Each preset adjusts resolution, FPS, and bitrate to fit the platform's limits.

What codecs are supported?

H.264 (MP4) for maximum compatibility and VP9 (WebM) for better compression at the same quality. H.265/HEVC is not available in browser-based processing. VP9 offers ~20% better compression than H.264 but encodes significantly slower.

Can I trim the video before compressing?

Yes. In Custom mode, you can set start and end times to trim your video before compression. This is useful for removing unwanted parts and further reducing file size without a separate tool.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Who is this tool for?
🎬 Video Creators ✨ Content Creators
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