MP4 to WebM Converter - Free Desktop App

WebM offers 30-50% better compression than MP4 with H.264, resulting in smaller files at the same quality. For websites, this means faster page loads, reduced bandwidth costs, and better user experience. WebM uses modern codecs (VP9, AV1) that are optimized for web streaming. It's also royalty-free and open-source, making it ideal for web use.

Yes, in all modern browsers. WebM is supported by Chrome, Firefox, Edge, Opera, and Safari (since 2020) - covering 95%+ of web users. For maximum compatibility, many developers serve both WebM and MP4 versions using the HTML5 video element with fallback sources. Diwadi can generate both formats simultaneously.

Typically 30-50% smaller than MP4 (H.264) at the same visual quality. A 10MB MP4 video often becomes a 5-7MB WebM file. With AV1 codec (next-gen), savings can reach 50-60%. For bandwidth-heavy websites (video streaming, tutorials, product demos), this translates to significant cost savings and better performance.

Yes! Unlimited batch conversion. Select entire folders of MP4 videos and convert them all to WebM in one operation. Perfect for converting your entire website's video library. Diwadi processes multiple videos in parallel using hardware acceleration. Online tools typically limit batches to 2-5 videos.

Absolutely! Diwadi handles 4K, 8K, and any resolution. WebM with VP9 or AV1 codec is actually more efficient for 4K content than MP4 with H.264. Hardware acceleration ensures fast conversion even for large 4K videos. No file size limits unlike online tools.

VP9 is recommended for most use cases - excellent compression, wide browser support, hardware acceleration available. AV1 offers even better compression (50% smaller than H.264) but encoding is slower and not all hardware supports it yet. VP8 is older and less efficient - use VP9 or AV1 instead.

Yes! Diwadi leverages GPU encoding when available (NVIDIA, Intel, AMD). Hardware acceleration makes VP9 encoding 5-10x faster. AV1 encoding benefits from GPU acceleration on newer graphics cards. For CPU-only encoding, Diwadi optimizes multi-core performance.

Yes! Diwadi supports bidirectional conversion. Convert MP4 to WebM for web optimization, and convert WebM back to MP4 when you need better compatibility with video editing software or devices that don't support WebM yet.

Website video backgrounds, product demo videos, video tutorials, embedded video players, video streaming platforms, progressive web apps (PWAs), responsive video for mobile, reducing CDN bandwidth costs, improving Core Web Vitals scores for SEO, and any web-based video content where file size matters.

Completely free with unlimited conversions. No file size limits, no video length limits, no watermarks, no credit card required. Convert unlimited videos to WebM forever at no cost.