CropAlter: Video Crop Editor

Quickly and effortlessly crop, reframe, and adjust your videos with CropAlter! Whether you need to fit your video into Instagram Reels, TikTok, YouTube Shorts, square posts, or cinema landscape formats, CropAlter delivers instant, studio-grade cropping right on your Android device. Powerful, accurate, and completely private — CropAlter uses hardware-accelerated Media3 video transformation to give you fluid real-time preview and export without quality degradation. KEY FEATURES: Popular Aspect Ratio Presets: • 1:1 Square (Instagram Posts, Profile Clips) • 9:16 Reel / Story (Instagram Reels, TikTok, YouTube Shorts) • 16:9 Landscape (YouTube, Cinema, Presentations) • 4:5 Feed (Optimized Portrait Social Feed) • 4:3 Standard (Classic Video Framing) • Full / Original (Reset to original video bounds with one tap) Precision Custom Margins: • Adjust Left, Right, Top, and Bottom margins independently with smooth percentage sliders. • Instant real-time video playback preview as you adjust margins. Privacy & Security First: • 100% on-device local video processing. Your video files never leave your device and are never uploaded to the cloud or third-party servers. • Works completely offline without consuming mobile data. Universal Format Support: • Compatible with MP4, MKV, MOV, WebM, AVI, and 3GP video formats. • Built-in full-featured media player with Picture-in-Picture (PiP) and gesture controls. Clean & Modern Interface: • Fluid edge-to-edge Material You design with dynamic dark and light mode themes. • Optimized master-detail layouts for tablets and foldables. • Landscape orientation responsive layout. Quick Export & Sharing: • Save directly to your device system gallery or share instantly to WhatsApp, Instagram, TikTok, Telegram, and more. HOW TO USE: 1. Select any video from your device library or share a video directly to CropAlter. 2. Tap Edit Video to open cropping controls. 3. Choose an aspect ratio preset or fine-tune margin sliders. 4. Tap Export — your cropped video is saved to your gallery in seconds! Download CropAlter today and reframe your videos like a pro!

• Initial release of CropAlter: Video Crop & Reframe • Crop and reframe videos with 1:1, 16:9, 9:16, 4:5, 4:3 presets or custom margins • Instant real-time video playback preview while adjusting crop bounds • Hardware-accelerated background video processing and export • Cloud project backup and restore support • 125-locale translations and adaptive edge-to-edge design