Free Video Tools Convert, Compress & Edit — Offline
Convert between MP4, MOV, MKV, AVI, WebM, and more. Compress for email or WhatsApp, trim clips, extract audio, and add captions — all offline.
Format Conversion
MOV to MP4
Convert iPhone MOV recordings to MP4 for Windows and any video player.
AVI to MP4
Convert AVI to MP4 — typically 50-70% smaller and universally supported.
MKV to MP4
Convert MKV to MP4 for compatibility with iOS, social platforms, and editors.
MP4 to WebM
Convert MP4 to WebM for smaller, web-optimized video.
MP4 to MOV
Convert MP4 to MOV for QuickTime and Apple's Final Cut Pro.
WebM to MP4
Convert WebM downloads to MP4 for universal playback.
3GP to MP4
Modernize old 3GP phone videos to MP4.
FLV to MP4
Convert legacy Flash FLV videos to MP4.
M4V to MP4
Convert M4V (iTunes) to MP4 for any device.
WMV to MP4
Convert Windows WMV to MP4 for Mac and mobile.
Edit & Operations
Compress Video
Shrink video file size by up to 80% with chosen quality preset.
Learn more →Extract Audio
Pull MP3, WAV, or AAC audio out of any video file.
Learn more →Trim Video
Cut sections from video without re-encoding when possible.
Learn more →Video to GIF
Turn a video clip into an animated GIF with size and FPS control.
Learn more →Compress for Email
Compress video to fit Gmail, Outlook, and Yahoo attachment limits.
Learn more →Compress for WhatsApp
Compress video to fit WhatsApp's 16MB share limit.
Learn more →Compress Video for Email
Hit specific email-ready sizes like 25MB and 10MB.
Learn more →Video Captions
Generate or burn in captions for accessibility and silent viewing.
Learn more →How Diwadi Compares
| Feature | HandBrake | CloudConvert | Diwadi |
|---|---|---|---|
| Privacy | 100% local | Cloud upload | 100% local |
| Ease of Use | Complex UI | One-click presets | One-click presets |
| Offline Support | Yes | No | Yes |
| Price | Free | $9/mo | Free |
Ready to Edit Videos Offline?
Download Diwadi and convert, compress, and edit videos without uploading a single file.
Frequently Asked Questions
Are Diwadi's video tools really free?
Yes. All video tools are free with no length limits, no watermarks, and no daily caps.
Do my videos get uploaded to a server?
No. Every operation runs locally on your computer. Your videos never leave your device.
Will compressing a video lose quality?
You control the quality preset. Compression at 80% retains visual quality while drastically reducing size.
Does Diwadi use my GPU?
Yes. Diwadi uses hardware acceleration (NVENC, VideoToolbox) when available for fast encoding.
What's the maximum video length or size?
There is no built-in limit. Diwadi processes locally, so you're bounded by disk space, not by us.
Can I trim a video without re-encoding?
Yes. Diwadi cuts on keyframes when possible to preserve quality and trim instantly.
Which platforms are supported?
Diwadi is available for macOS and Windows. Download the version for your operating system.
How does Diwadi compare to HandBrake?
HandBrake is powerful but has a complex UI. Diwadi gives one-click presets for common tasks (compress for email, convert MOV to MP4) while still being fully local.