ImgExtender vs Rendergrid

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ImgExtender compared with Rendergrid
Detail	ImgExtender	Rendergrid
What it does	Expand photos without cropping or stretching	AI image generation API with ready-made Python and Node.js client libraries
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Paid
Pricing	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.	$0.02 per image for Nano Banana 2.1 at 1K resolution, $0.02 for GPT Image 2, $0.04 for Nano Banana Pro at 1K, $0.07 at 4K. Pricing varies by model and resolution. No subscription required; users prepay balance in USDT.
Key features	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	Automatic idempotency key management Automatic polling with configurable intervals Retry logic for dropped connections and rate limiting Webhook signature verification Decimal and string representations for financial amounts Exception classes for error handling Support for Python 3.11+ and Node.js 22+ TypeScript support
What makes it different	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	Refund for failed requests automatically credited to balance Up to 70% cheaper than official Google and OpenAI prices No subscription or monthly fees, pay-as-you-go model Libraries handle boilerplate code automatically
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	12 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	18	12
Referring domains (Majestic)	28	1

5 details filled in for both companies.

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