| Key features | - Eight platform previews including Facebook, Instagram, Google Ads, LinkedIn, X, Snapchat, TikTok, and YouTube
- Device and canvas control across desktop, mobile, square, landscape, portrait, and story formats
- Immediate visual feedback on copy, CTA, format, and creative changes
- Export in PNG, JPG, or SVF formats
- Shareable reproducible review links
- Browser-based processing with no uploads to servers
- No account or sign-up required
| - Keep the first frame intact and stitch the following subtitle slices automatically
- Process and export images locally with HTML5 Canvas without uploading photos
- Support for Chinese, Latin, Thai, Vietnamese and Arabic fonts
- Adjust font size, text color, outline color and slice height
- Film color presets including Nolan White, Wong Kar-wai Gold, Tokyo Cyan and Minimal Mono
- Customizable watermark with position, opacity and font size options
- Support for JPG, PNG and WebP image formats
- Interface available in Chinese and English
- Safe margin adjustment for subtitle positioning
- 2.39:1 Cinemascope canvas ready
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| What makes it different | - All eight major ad platforms in one workspace
- Completely free with no account needed
- Images stay private in your browser
- Production-ready exports for approvals and presentations
| - No account or installation required
- All image processing runs locally in your browser
- Automatically stitches subtitle slices while keeping the first frame intact
- Multiple film-inspired color presets for professional styling
- Full customization of fonts, colors, outlines and watermarks
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AdViewport
Shadow Snap