AI video generator creating cinematic videos with synchronized sound from text or images
Free AI video upscaler that runs in your browser with no watermark, signup, or upload required
Stage
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Founded
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Based in
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Pricing model
Freemium
Free
Pricing
Basic $19.90/month ($9.90/month billed annually at $118.80); Standard $39.90/month ($19.90/month billed annually at $238.80); Pro $99.90/month ($49.90/month billed annually at $598.80). Basic includes 560 credits/month, Standard includes 1,800 credits/month, Pro includes 5,400 credits/month. All pla
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Key features
Text to video generation from text prompts
Image to video animation
Native synchronized audio and sound generation
Up to 4K resolution output
8+ language phoneme-level lip sync
Up to 30 reference images for creative control
Up to 30 seconds video duration
Six aspect ratio options
Multi-shot storytelling with natural transitions
Average generation time under 8 minutes
Runs entirely in browser on WebGPU with no upload required
Upscale to 1080p, 2K or 4K resolution
No signup, watermark or account needed
Supports videos of any length with progress saved
Batch upscale up to 200 videos at once on computer
Opens MP4, MOV, MKV, WebM, 3GP and converts older formats
Quality tiers from 2× passes to 4× restoration
Deinterlace interlaced video during conversion
Download results as MP4, MOV, MKV or WebM with audio
Works on phones with Chrome, Edge, Samsung Internet or Safari
What makes it different
Native audio-video joint generation creates synchronized sound in one pass without separate audio tools
Multimodal reference system with up to 30 images for consistent character and style control
8-language phoneme-level lip sync with frame-accurate synchronization
Powered by ByteDance's advanced Seedance 2.0 model
Cinema-grade specs including up to 4K output and advanced physics rendering
Runs entirely on your device—no file uploads to servers or accounts required
Measures your device's graphics performance to give accurate time estimates
Supports unlimited video length with progress saved automatically
Batch process up to 200 videos with one set of settings
Adapts quality settings based on content type and compression level
Seedance 2.0
4K Video Upscaler