This command-line tool (CLI) transforms large video files into compact, streamable formats while preserving visual quality that rivals commercial encoders costing thousands.
What is Kvazaar?
Kvazaar is the leading open-source H.265/HEVC video encoder developed by Ultra Video Group - which is also behind the development of uvg266, an encoder for the emerging Versatile Video Coding (VVC)/H.266 standard.
Why Choose Kvazaar for Video Encoding?
Massive File Size Reduction: Compress 4K videos up to 50% smaller than H.264 while maintaining identical visual quality. A 10GB video becomes 5GB without viewers noticing any difference.
Zero Cost, Maximum Performance: Unlike expensive commercial encoders, Kvazaar is completely free under the BSD 3-clause license. No subscriptions, no limitations, no hidden costs.
Professional Results: Trusted by streaming platforms, video conferencing solutions, and broadcast professionals worldwide. Kvazaar handles everything from 320p web videos to 4K cinema content.
Cross-Platform Compatibility: Works seamlessly on Windows, macOS, and Linux systems. Perfect for developers, content creators, and video professionals regardless of their operating system.
Real-Time Encoding: Achieves real-time HEVC encoding speeds up to 4K resolution on modern processors, making it ideal for live streaming applications.
Who Uses Kvazaar?
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Streaming Platforms: Reduce bandwidth costs while delivering high-quality video.
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Video Conferencing: Enable smooth HD calls with lower data usage.
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Content Creators: Compress YouTube, Twitch, and social media uploads.
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Broadcasters: Professional-grade encoding for television and online distribution.
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Developers: Integrate H.265 encoding into applications and workflows.
Quick Start Guide:
After downloading, encode your first video with this simple command:
kvazaar -i input.yuv --input-res 1920x1080 -o output.265
Technical Specifications:
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Format Support: H.265/HEVC encoding.
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Input Formats: YUV, Y4M, and more.
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Bit Depth: 8-bit and 10-bit support.
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Resolution: Up to 4K and beyond.
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Platforms: Windows, macOS, Linux.
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Architecture: x86, x64, PowerPC, ARM.
System Requirements:
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Minimum: 2GB RAM, dual-core processor.
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Recommended: 8GB RAM, quad-core processor for 4K encoding.
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Disk Space: 5MB installation.
The Ultra Video Group continuously updates Kvazaar with performance improvements and new features.
Version 2.3.1 includes enhanced multi-threading support and optimized encoding algorithms that deliver faster processing speeds.
Whether you're encoding a single video or processing thousands of files in batch operations, Kvazaar scales to meet your needs.
The modular architecture supports parallelization across multiple CPU cores, maximizing your hardware's potential.
DOWNLOAD KVAZAAR 2.3.1 NOW - FREE