Video Converter

Convert video files between different formats. Support for MP4, WebM, OGG, AVI, MOV, and MKV. All processing happens in your browser - your videos never leave your device.

Select Video File

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Drop video file here or click to browse

Select MP4, AVI, MOV, WebM, or other video formats

Note: Video conversion happens entirely in your browser using FFmpeg.wasm. Large files may take several minutes to process. The conversion quality depends on the input file and selected format. For best results, use MP4 (H.264) format which offers good quality and compatibility.

Why use Video Converter?

Converting videos between different formats is essential for compatibility, file size optimization, and platform requirements. Whether you need to convert videos for web use, mobile devices, editing software, or specific platforms, having a reliable video converter is crucial. Our Video Converter provides a professional solution that works entirely in your browser, ensuring your videos remain private and secure throughout the conversion process.

Different video formats serve different purposes and have varying compatibility. MP4 (H.264) is the most widely supported format, ideal for web use, mobile devices, and general playback. WebM (VP9) offers excellent compression for web streaming and modern browsers. OGG (Theora) is an open-source format good for web use. AVI, MOV, and MKV are container formats that may be needed for specific software or devices. Converting between formats ensures your videos work where you need them, while also allowing you to optimize file size and quality.

The tool uses FFmpeg.wasm, a WebAssembly port of the industry-standard FFmpeg video processing library. This means you get professional-grade video conversion capabilities running entirely in your browser, without any server uploads. The conversion process maintains video quality while optimizing for the target format, ensuring your converted videos look great and play smoothly on any device or platform.

What sets our Video Converter apart is the complete privacy and security it offers. Unlike cloud-based conversion services that require you to upload your videos to their servers, our tool processes everything in your browser. Your videos never leave your computer, never get transmitted over the internet, and we cannot see or access any of your video files. This is especially important for personal videos, professional work, or any videos containing sensitive content.

🔒Privacy & Security

Zero Data Logging: Your data is processed 100% locally in your browser and never sent to our servers.

All processing happens client-side using advanced web technologies. Your files, data, and personal information remain completely private and secure. We don't store, log, or transmit any of your information. Once you close the browser tab, all data is cleared from memory.

💡Pro Tips & Advanced Use Cases

  • Convert videos for web use. Use WebM or MP4 format for optimal web streaming and faster page loads.

  • Optimize videos for mobile devices. Convert to MP4 (H.264) for best compatibility across all mobile platforms.

  • Prepare videos for editing software. Convert to formats compatible with your video editing software (MOV, AVI, MKV).

  • Reduce video file sizes. Convert to more efficient formats like WebM to reduce file size while maintaining quality.

  • Convert videos for specific platforms. Use format recommendations for YouTube, social media, or other platforms.

  • Process videos locally for privacy. All conversion happens in your browser, ensuring complete privacy for sensitive content.

Frequently Asked Questions

Is my video file secure during conversion?

Absolutely. All video conversion happens entirely in your browser using FFmpeg.wasm (WebAssembly). Your video file never leaves your device, never gets uploaded to our servers, and we cannot see or access any of your videos. This ensures complete privacy and security.

How long does conversion take?

Conversion time depends on your video file size and your device's processing power. Small videos (under 50MB) typically convert in 1-3 minutes. Larger videos may take 5-15 minutes or more. The tool shows real-time progress so you know how long it will take. Processing happens entirely in your browser.

Which format should I choose?

MP4 (H.264) is the most compatible format, working on virtually all devices and platforms. WebM (VP9) offers excellent compression for web use. Choose based on your needs: MP4 for universal compatibility, WebM for web optimization, or other formats for specific software requirements.

Will conversion reduce video quality?

The tool maintains video quality while converting. However, some formats may have different compression characteristics. MP4 (H.264) and WebM (VP9) both maintain excellent quality. The conversion process optimizes for the target format while preserving as much quality as possible.

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Explore more Video Tools that might help with your workflow:

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BolehTools is a comprehensive, free online platform offering professional-grade utilities for PDF manipulation, image processing, and JSON formatting. Our browser-based tools process all files locally on your device - ensuring complete privacy, security, and data protection. No account registration, no file uploads to servers, no hidden fees. Perfect for professionals, students, developers, and anyone who needs reliable document and image processing tools. All tools are 100% free, work instantly in your browser, and support batch processing for maximum productivity. Made with care in Malaysia for users worldwide.

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🔒 Security & Privacy: Client-side only. Your data is not stored or sent to our servers. All processing happens locally in your browser.

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Last updated: January 17, 2026

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