AI thumbnail maker for YouTube that writes the brief, generates the image and checks it at feed size
AI Image Editor with Prompt Online & Free
Stage
Not given
Startup
Founded
Not given
2025
Based in
MA
GB
Pricing model
Paid
Freemium
Pricing
Not given
Free plan available. Paid plan: $135/yearly with up to 150 AI generations every 3 hours, advanced AI image editing, premium templates, and commercial license.
Key features
Paste YouTube video link to automatically write brief from title, description and transcript
Text is read back and corrected if letters are wrong
Checked at feed size with readability graded at 336 pixels
Brand kit to apply channel colors, lettering and visual style to every thumbnail
Export at 4K resolution (3840×2160) recommended by YouTube
Auto-Polish finds weakest point and fixes it automatically
Text prompt-based image editing
Object addition and removal
Background removal and replacement
Style application
Image upscaling to 4K
Smart image resizing
Text modification in images
Version control and undo
Chrome extension
Multi-language support (80+ languages)
What makes it different
Text automatically checked and corrected before you see the image
Built specifically for YouTube's constraints like duration badge corner and feed size
Full commercial rights with no watermark on any plan
Uses plain text prompts instead of complex traditional tools like brushes and layers
ThumbnailMaker
Phedra AI