Video Compressor - Free Desktop App
Compress videos 10x faster offline with hardware acceleration. Supports 4K/8K, unlimited file size. No upload wait. Works on Mac & Windows.
Compress Your Videos
Reduce file size by up to 80%
Your videos will be compressed using modern codecs with optimized settings. A 1GB video typically becomes 200-400MB while maintaining good visual quality.
Note: Hardware acceleration makes compression 5-20x faster using your GPU.
Why Desktop Video Compressor Beats Online Tools
| Feature | Online Tools | Diwadi Desktop |
|---|---|---|
| Upload Required | ❌ Required | 🎯 Never |
| File Size Limit | ❌ 50MB max | ♾️ Unlimited |
| Speed | ⏳ Slow (upload/download) | ⚡ Instant |
| Batch Processing | ❌ 1 file | ✅ 1000s |
| Privacy | ⚠️ Risky (cloud upload) | 🔒 100% Local |
| AI Features | ❌ No | 🤖 Yes |
| Offline | ❌ No | ✅ Yes |
| Cost | Free | Free ✅ |
Real Compression Results
Actual file sizes from Diwadi's video compressor. Same videos, dramatically smaller files with minimal quality loss.
How It Works
Download & Install
Takes just 30 seconds. No account, no credit card required.
Browse & Select Your Videos (MP4, MOV, AVI, MKV)
Navigate your files like a regular file browser. Batch processing supported.
Get Compressed Videos (50-80% smaller) (Instant)
Processing happens locally on your computer. No upload wait.
Compress Video to Target Size
Need to meet a specific file size limit? Here are the most common platform requirements and how Diwadi handles them.
Email Attachment
25 MBMost email providers (Gmail, Outlook, Yahoo) cap attachments at 25MB. A 5-minute 1080p video typically needs to be compressed to fit.
Use Medium preset with 720p resolution
WhatsApp enforces a strict 16MB video limit. Compress longer videos with lower resolution or higher compression to stay within limits.
Use High Compression preset with 480p resolution
Discord
25 MBDiscord free tier allows 25MB uploads (50MB with Nitro). Compress gaming clips and screen recordings to share with your server.
Use Medium preset, keep under 2 minutes at 720p
Instagram Reels
250 MBInstagram accepts up to 250MB for Reels (up to 15 minutes). Compress 4K footage to 1080p for faster uploads and smoother playback.
Use Low Compression preset with 1080p resolution
TikTok
287 MBTikTok allows up to 287MB (mobile) or 1GB (desktop uploads). Compress to optimize upload speed while maintaining visual quality.
Use Low Compression preset with 1080p resolution
YouTube
256 GBYouTube accepts large files but recommends efficient encoding. Compressing a 10GB raw file to 1-2GB with H.265 speeds up upload without visible quality loss.
Use Low Compression preset with original resolution
Diwadi compresses videos locally with no upload required. A 1GB video that takes 10+ minutes to upload to online tools starts compressing instantly on your machine.
Social Media & Platform Presets
Diwadi includes built-in presets with optimized resolution, codec, bitrate, and frame rate for every major platform. One click to get the right settings.
| Platform | Resolution | Codec | Bitrate | Frame Rate | Aspect Ratio |
|---|---|---|---|---|---|
| | 1080p / 4K | H.264 or H.265 | 8-12 Mbps (1080p) | 30 or 60 fps | 16:9 |
| | 1080 x 1920 | H.264 | 3.5 Mbps | 30 fps | 9:16 |
| | 1080 x 1920 | H.264 | 2-6 Mbps | 30 fps | 9:16 |
| | 1280 x 720 | H.264 | 5 Mbps | 30 or 60 fps | 16:9 or 1:1 |
| | 1080p | H.264 | 4-8 Mbps | 30 fps | 16:9 or 9:16 |
| | 480p or 720p | H.264 | 1-2 Mbps | 30 fps | Any |
| | 1080p | H.264 | 5-8 Mbps | 30 fps | 16:9 or 1:1 |
Diwadi applies these settings automatically when you select a platform preset. No need to remember codec names or bitrate values.
Video Compression Guide
Understanding how video compression works helps you choose the right settings and get the best results for your files.
Video compression reduces file size by removing redundant visual data between frames and within each frame. The codec, quality level, resolution, and compression type all work together to determine your final file size and visual quality. Here is what each setting means in plain language.
Video Codecs: H.264 vs H.265 vs AV1
A codec is the algorithm that encodes and decodes your video. H.264 is the most widely compatible codec, supported by virtually every device and platform. H.265 (also called HEVC) compresses 30-50% better than H.264 at the same quality, making it ideal for 4K content, but some older devices cannot play it. AV1 is the newest codec, offering even better compression than H.265 with no licensing fees. It is gaining platform support (YouTube, Netflix) but encoding is slower. For most users, H.265 is the sweet spot between file size and compatibility.
CRF: Constant Rate Factor Explained
CRF is the most common way to control video quality during compression. It is a number that tells the encoder how much quality to preserve. For H.264 and H.265, CRF ranges from 0 (lossless, huge files) to 51 (worst quality, tiny files). A CRF of 18-23 is considered visually lossless for most content. Lower numbers mean better quality but larger files. Diwadi's presets translate to CRF values behind the scenes: High Quality uses CRF 18-20, Medium uses CRF 23-26, and High Compression uses CRF 28-32.
Resolution vs Bitrate Tradeoff
Resolution is the number of pixels in each frame (1080p = 1920x1080). Bitrate is how much data is used per second of video, measured in Mbps. Higher resolution needs higher bitrate to look sharp. Downscaling a 4K video to 1080p before compression can reduce file size by 60-75% because there are four times fewer pixels to encode. If your video will be watched on phones or tablets, 1080p is often indistinguishable from 4K. Reducing resolution is the single most effective way to shrink file size.
Lossy vs Lossless Compression
Lossy compression discards visual information that is hard for the human eye to notice, achieving dramatic size reductions (50-90%). This is what most video compression does and what Diwadi's presets use. Lossless compression preserves every pixel perfectly but only reduces file size by 20-40%. Lossless is used in professional video editing workflows where footage will be re-edited. For sharing, uploading, or archiving finished videos, lossy compression with a good quality setting (CRF 18-23) is the practical choice.
Diwadi handles all of this complexity for you. Choose a preset like Medium or High Quality, and the app selects the optimal codec, CRF, and resolution settings automatically. No command-line tools or technical knowledge required.
Why Choose Diwadi Desktop?
Privacy First
Files never leave your computer. No cloud upload, no data collection, 100% local.
Lightning Fast
Process files 10x faster than online tools. No upload wait, no download wait.
No Limits
Convert unlimited files of any size. Batch process thousands in one click.
AI-Powered
Smart formatting detection, auto-cleanup, better accuracy.
Works Offline
No internet required. Perfect for flights, secure environments.
Free to Use
No trial limits, no watermarks, no credit card required.
Frequently Asked Questions
How much can Diwadi compress videos?
Typically 50-80% reduction in file size while maintaining good quality. A 1GB 4K video can become 200-400MB. The exact compression depends on your quality settings and video complexity. Diwadi offers multiple presets (Web, Social Media, High Quality, Archive) and custom settings for precise control.
Will compression reduce video quality?
Some quality loss is inherent to compression, but it's minimal with proper settings. Diwadi uses modern codecs (H.265/HEVC, AV1) that maintain excellent visual quality at smaller sizes. At recommended settings, most viewers won't notice quality differences. You control the quality-size tradeoff with adjustable presets.
Does it support 4K and 8K videos?
Yes! Diwadi handles 4K, 8K, and even higher resolutions with ease. Hardware acceleration (GPU encoding) makes 4K compression fast. No file size limits unlike online tools that restrict 4K uploads. Perfect for compressing drone footage, camera recordings, or high-resolution screen captures.
How is offline compression faster?
No upload/download time. Uploading a 5GB 4K video to an online tool takes 10-30 minutes on typical internet. Diwadi starts compressing immediately using your computer's GPU. Hardware acceleration processes video 10-20x faster than software-only encoding. For large videos, this saves hours.
Can I compress multiple videos at once?
Yes! Unlimited batch compression. Select dozens or hundreds of videos and compress them all in one operation. Diwadi queues them efficiently and can process multiple videos in parallel if your hardware supports it. Online tools typically limit batches to 2-5 videos.
What video formats are supported?
All major formats: MP4, MOV, AVI, MKV, WebM, FLV, WMV, and more. Compress videos in their original format or convert to a more efficient format like MP4 with H.265 compression. MP4 with H.265 codec offers the best compression for most use cases.
Does it use hardware acceleration?
Yes! Diwadi leverages your GPU (graphics card) for hardware-accelerated encoding when available. This makes compression 5-20x faster than CPU-only encoding. Supports NVIDIA NVENC, Intel Quick Sync, AMD VCE, and Apple VideoToolbox for maximum speed.
Can I compress videos for social media?
Perfect for that! Diwadi includes presets for YouTube, Instagram, TikTok, Twitter, and Facebook. These presets automatically optimize resolution, bitrate, and codec for each platform's requirements. Batch compress your entire content library to meet social media file size limits.
What's the maximum file size I can compress?
No limits! Compress videos of any size - 10GB, 50GB, 100GB+. Limited only by your disk space. Online tools typically restrict uploads to 500MB-2GB. Diwadi handles massive 4K/8K projects, full-length recordings, and multi-hour videos without issues.
Is video compression free?
Completely free with unlimited compression. No file size limits, no time limits on video length, no watermarks, no credit card required. Compress unlimited videos of any size forever at no cost.
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Learn More
Understand video formats, compression, and how Diwadi compares to alternatives