AI caption and subtitle generator that adds captions to videos in seconds with no watermark
AI product image generator that turns one phone photo into complete ecommerce image sets
Stage
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Founded
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Based in
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Pricing model
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Paid
Pricing
Free: 30 minutes of captions per month, 1080p MP4 export up to 3 minutes, 8 caption styles, SRT/VTT/TXT downloads up to 30 minutes, free translation into 100+ languages. Pro: $6.99/month (limited-time price, normally $9.99) or $59/year, unlimited captions on videos up to 90 minutes, all 22 caption s
Creator: $19/month with 60 credits (30-60 images); Professional: $49/month with 180 credits (90-180 images); Enterprise: $149/month with 600 credits (300-600 images). Images cost 1 credit for 2K or 2 credits for 4K.
Key features
Automatic speech transcription in 100 languages with automatic language detection
SRT, VTT and TXT subtitle file downloads
Free translation into 100+ languages
Copy caption style from screenshot functionality
Bilingual captions showing two languages simultaneously on Pro
Video processing entirely in browser with audio-only server transmission for privacy
Word-level timing synchronization for precise caption timing
Amazon listing images from one phone photo
Amazon A+ Content generator with hero images, banners, and brand story modules
Etsy product images with handmade-style feel
Shopify product images matching DTC brand style
AI fashion model photography from one garment photo
AI product photography with custom backgrounds and lifestyle scenes
Image text and headlines written automatically
Translate product images into 15 marketplace languages
AI generates high-converting product images in about 60 seconds
Create AI product videos from product photos
What makes it different
Fastest among 10 tested caption tools, 6.7× faster than CapCut and 4.7× faster than VEED
Highest accuracy with 5.7% word error rate in October 2026 accuracy test of 8 caption tools
Video stays entirely private with only audio sent for transcription
No prompts or design skills required—upload a photo and get complete image sets instantly
Generates complete platform-optimized image sets in about 60 seconds from one photo
AI-generated images are production-ready with automatic copy, headlines, and layout optimization
Supports 20+ countries and 15 marketplace languages with bulk translation of product images
Captions Generator
GreenOnion