Gigapixel AI
Image Upscaling
Maximize visual quality with AI
Like Topaz Labs | Photo AI 4, Gigapixel AI is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
We've curated 48 of the best alternatives to Topaz Labs | Photo AI 4, ranked by feature overlap, topic similarity, user ratings, and popularity. Gigapixel AI, VanceAI Image Upscaler, and Pixble lead the list as the closest matches.
Updated May 18, 2026
The list includes 2 free alternatives, 23 freemium, 15 paid, and 8 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Topaz Labs | Photo AI 4 itself is paid, which makes paid alternatives the most natural starting point.
Many of these tools cluster around use cases like Image Enhancement, Image Upscaling, Api, and Image Processing — the same problem spaces Topaz Labs | Photo AI 4 addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Topaz Labs | Photo AI 4.
Ranked by compatibility score
Image Upscaling
Maximize visual quality with AI
Like Topaz Labs | Photo AI 4, Gigapixel AI is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Upscale images up to 40x without quality loss.
2 free and 23 freemium options.
15 paid options.
24 additional candidates
Like Topaz Labs | Photo AI 4, ImageUpscaling.net is in the Image Upscaling category. ImageUpscaling.net is free, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Like Topaz Labs | Photo AI 4, Icons8 AI Image Upscaler is in the Image Upscaling category. Icons8 AI Image Upscaler is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Gigapixel AI ranks as the highest-scoring alternative to Topaz Labs | Photo AI 4, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 2 fully free and 23 freemium alternatives are available, including Upscales, Freepik Upscaler, and AI Image Upscaler.
Gigapixel AI is similarly priced (paid) and sits in the same category (Image Upscaling). View its detail page to compare features, integrations, and reviews side-by-side.
Top Image Upscaling alternatives include Gigapixel AI, VanceAI Image Upscaler, Pixble, and ClarityAI. These tools share the same primary category and have meaningful topic overlap with Topaz Labs | Photo AI 4.
Like Topaz Labs | Photo AI 4, VanceAI Image Upscaler is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Enhance photos instantly with AI
Like Topaz Labs | Photo AI 4, Pixble is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Upscale and enhance images with AI magic
Like Topaz Labs | Photo AI 4, ClarityAI is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Upscale and enhance images with AI power.
Like Topaz Labs | Photo AI 4, GigapixelAI is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
AI-powered photo enhancement in one click
Like Topaz Labs | Photo AI 4, PicMa Photo Enhancer is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
AI-powered image upscaling on your device.
Like Topaz Labs | Photo AI 4, SuperImage is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Free AI image upscaler for photos and more.
Like Topaz Labs | Photo AI 4, ImageUpscalerAi is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Upscale images to higher resolution online for free
Like Topaz Labs | Photo AI 4, AI Image Enhancer is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Cleanup your picture in seconds.
Like Topaz Labs | Photo AI 4, OptiClean is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
AI-powered image upscaling and enhancement
Like Topaz Labs | Photo AI 4, SupPixel AI is in the Image Upscaling category. Both are paid. Worth comparing on the detail page.
Image Upscaling
Upscale images 8x with AI in one click
Like Topaz Labs | Photo AI 4, Upscales is in the Image Upscaling category. Upscales is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Improve image quality with AI upscaling.
Like Topaz Labs | Photo AI 4, Freepik Upscaler is in the Image Upscaling category. Freepik Upscaler is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Enhance images with AI for free
Like Topaz Labs | Photo AI 4, AI Image Upscaler is in the Image Upscaling category. AI Image Upscaler is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Enlarge images without losing quality using AI.
Like Topaz Labs | Photo AI 4, Stockphotos Upscaler is in the Image Upscaling category. Stockphotos Upscaler is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Upscale images by 400% without quality loss
Like Topaz Labs | Photo AI 4, AI Image Upscaler is in the Image Upscaling category. AI Image Upscaler is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Upscale images for free without losing quality.
Like Topaz Labs | Photo AI 4, Upscale by StickerMule is in the Image Upscaling category. Upscale by StickerMule is free, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Enhance photos with AI in one click
Like Topaz Labs | Photo AI 4, Face26 is in the Image Upscaling category. Face26 is free-trial, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Enhance images with free, open-source AI upscaling.
Like Topaz Labs | Photo AI 4, Upscayl is in the Image Upscaling category. Upscayl is free-trial, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
AI-powered photo enhancement made easy
Like Topaz Labs | Photo AI 4, Mems is in the Image Upscaling category. Mems is free-trial, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Transform low-res images into stunning 4x clarity visuals.
Like Topaz Labs | Photo AI 4, Pictura is in the Image Upscaling category. Pictura is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Enhance your photos with cutting-edge AI technology.
Like Topaz Labs | Photo AI 4, NewProfilePic App is in the Image Upscaling category. NewProfilePic App is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Enhance photos with AI for stunning quality and detail.
Like Topaz Labs | Photo AI 4, Aiarty Image Enhancer is in the Image Upscaling category. Aiarty Image Enhancer is free-trial, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Image Upscaling
Upscale multiple images instantly with AI power
Like Topaz Labs | Photo AI 4, Automated Bulk Image Upscaler is in the Image Upscaling category. Automated Bulk Image Upscaler is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
19 more free/freemium alternatives listed below. Browse all Topaz Labs | Photo AI 4 alternatives ↓
25 free or freemium alternatives to Topaz Labs | Photo AI 4 on /tools/topaz-photo-ai/alternatives.
9 more paid alternatives listed below. Browse all Topaz Labs | Photo AI 4 alternatives ↓
15 paid alternatives to Topaz Labs | Photo AI 4 on /tools/topaz-photo-ai/alternatives.
Like Topaz Labs | Photo AI 4, Lets Enhance: Image Quality AI is in the Image Upscaling category. Lets Enhance: Image Quality AI is freemium, while Topaz Labs | Photo AI 4 is paid. Worth comparing on the detail page.
Neither Topaz Labs | Photo AI 4 nor Gigapixel AI has user ratings yet — be the first to review either tool to help future visitors compare them.
