GK
GKInsightHub

Video Tools

Convert, compress, trim videos & create GIFs — all in your browser, 100% private

Note: Browser-based video processing supports most MP4 and WEBM files. For best results, use Chrome or Edge. Very large files may take longer to process.
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Convert Video
Change format / resolution
📦
Compress Video
Reduce file size
✂️
Trim Video
Cut start & end
🎞️
Video to GIF
Create animated GIF
🎵
Extract Audio
Get audio as WAV
📸
Screenshots
Capture video frames

🔄
Convert Video

🎬
Drop your video here or click to browse
Supports MP4, WEBM, MOV, AVI, MKV

Conversion Complete!

Your video has been converted successfully

Original Size
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New Size
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Format
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📦
Compress Video

🎬
Drop your video here or click to browse
Supports MP4, WEBM, MOV, AVI, MKV

Compression Complete!

Your video has been compressed successfully

Original Size
--
Compressed Size
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Savings
--

✂️
Trim Video

🎬
Drop your video here or click to browse
Supports MP4, WEBM, MOV, AVI, MKV

Trim Complete!

Your video has been trimmed successfully

Original Duration
--
Trimmed Duration
--
Output Size
--

🎞️
Video to GIF

🎬
Drop your video here or click to browse
Supports MP4, WEBM, MOV, AVI, MKV

GIF Created!

Your animated GIF is ready

Duration
--
Frames
--
File Size
--

🎵
Extract Audio

🎬
Drop your video here or click to browse
Supports MP4, WEBM, MOV, AVI, MKV

Audio Extracted!

Audio has been extracted from your video

Duration
--
Format
--
File Size
--

📸
Video Screenshots

🎬
Drop your video here or click to browse
Supports MP4, WEBM, MOV, AVI, MKV

About Video Tools

Our free browser-based Video Tools let you convert, compress, trim, and manipulate video files without uploading anything to a server. Everything runs 100% client-side in your browser using modern Web APIs like MediaRecorder, Canvas, AudioContext, and Web Workers.

Video Formats & Browser Compatibility

FormatChromeFirefoxSafariEdge
MP4 (H.264)Play & RecordPlay onlyPlay onlyPlay & Record
WEBM (VP8/VP9)Full supportFull supportLimitedFull support
MOVMay workLimitedFull supportMay work
AVI / MKVLimitedLimitedNoLimited

Tips for Best Results

  • Use Chrome or Edge for the best experience. These browsers have the widest MediaRecorder codec support.
  • WEBM is the default output because MediaRecorder natively supports VP8/VP9 encoding in most browsers.
  • Keep videos under 500MB for smooth browser-based processing. Very large files may slow your browser.
  • GIF files can be large — use lower FPS and smaller width to keep file sizes manageable.
  • Audio extraction outputs WAV format (uncompressed) for maximum compatibility.
  • All processing is private — your video never leaves your device. Nothing is uploaded to any server.

How It Works

These tools use the browser's built-in capabilities. Video conversion and compression use the MediaRecorder API to re-encode video from a canvas stream. Trimming seeks to a start point and records until the end point. The GIF maker extracts individual frames via canvas and assembles them using the gif.js library. Audio extraction uses the Web Audio API (AudioContext) to decode and re-encode the audio track. Screenshots simply capture the current video frame to a canvas element.

Understanding Video Compression

Video compression reduces file size by lowering the bitrate (bits per second used to encode video). Lower bitrate means smaller files but reduced visual quality. The "Medium" preset is usually the best balance for sharing online. Use "High" quality when you need to preserve detail, and "Low" when file size is the top priority.

When to Use GIF vs Video

GIFs are ideal for short animations (under 10 seconds), memes, UI demonstrations, and social media reactions. For longer content, video formats like MP4 or WEBM are far more efficient — a 10-second GIF can easily be 10x larger than the equivalent video clip.