AI diagram generator for STEM teachers and students that creates labeled science diagrams in seconds
Expand photos without cropping or stretching
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free: 8 free credits to start with no card required. Starter Pack: $5 USD for 10 credits. Basic Pack: $10 USD for 22 credits. Plus Pack: $30 USD for 72 credits (most popular). Power Pack: $80 USD for 220 credits. Max Pack: $200 USD for 620 credits. All purchased credits never expire. Optional auto-r
Free: 10 credits (2 generations). Pro: $9.99/month ($119.88 yearly, 2,400 credits/year). Max: $29.99/month ($359.88 yearly, 9,600 credits/year). Each generation costs 5 credits. Free and Pro results are watermark-free for Pro and Max subscribers; free tier results are watermarked.
Key features
AI-powered diagram generation from text descriptions or uploaded PDFs
Labeled and unlabeled diagram versions
Multiple grade levels K-12 through graduate research
Black and white and color rendering modes
Print-ready worksheets and presentation slides
Subject and grade-level presets for K-12 and graduate research
Generate new canvas space around images in square, portrait, or landscape ratios
Position subject within destination frame before generation
Review generated space on comparison canvas before download
No prompts required
Browser-based editor with no software installation
Private uploads and results by default
Watermark-free results on Pro and Max plans
Commercial use rights on paid subscriptions
Support for JPG, PNG, and WebP formats up to 10 MB
Same professional image-extension model across all plans
What makes it different
Built specifically for diagrams, not generic image generation, ensuring scientific accuracy and proper labeling
Projector-ready diagrams with readable labels and high contrast designed for classroom use
Pay-as-you-go pricing with no subscription and credits that never expire
Editable vector export for use in professional design tools like Illustrator and Figma
Commercial license included with paid credits covering classroom and school use
No complex prompts or AI settings required—just set the frame and position the subject
Designed specifically for image extension without upscaling or cropping
Full control over composition and subject placement before generation
One image adapted for multiple layouts and formats simultaneously
Private by default with automatic deletion after 7 days
Figviz
ImgExtender