Bigjpg
AI image enlarger for sharper anime art and photos, up to 16x
About Bigjpg
Bigjpg is a web-based AI image upscaler that uses deep convolutional neural networks to enlarge images up to 16x while reducing noise and jagged edges. It is tuned especially for anime images and illustrations but also handles photos, and offers a free tier, low-cost prepaid paid plans, desktop and mobile apps, and an API for paid members.
Pros & Cons
Pros
- Very low cost: the Premium plan is $22 for a full year with 2,000 images per month
- Excellent results on anime, illustrations, and line art, which the model is specifically tuned for
- Up to 16x enlargement on paid plans, beyond the 4x cap many free upscalers use
- Simple upload-and-go interface with no editing skills required
- API access included with every paid plan for automating upscaling
- Available on web, Windows, Mac, iOS, and Android
Cons
- Free plan is limited to 20 images per month, 5MB files, and 4x enlargement on a slow shared server
- Photo results are less consistent than on illustrations, and fine detail can soften at high ratios
- Upscaling only: no retouching, face restoration, or sharpening tools in the core product
- Default servers are in mainland China, so downloads can be slow until you switch to the US region
- Plans are prepaid fixed terms rather than flexible monthly subscriptions
Key Features
AI Upscaling up to 16x
Enlarges images 2x, 4x, 8x, or 16x with a neural network that reconstructs lines, colors, and detail instead of stretching pixels (free plan capped at 4x).
Artwork and Photo Modes
Choose an 'art' style tuned for anime and illustrations or a 'photo' style for regular photographs.
Adjustable Noise Reduction
Five noise-reduction levels from None to Highest to clean JPEG artifacts and grain while enlarging.
Offline Enlarging
Logged-in users can close the browser after starting a job; processing continues server-side and results appear in enlargement history.
Batch and Parallel Enlarging
Paid plans can queue images in batch mode and process several enlargements in parallel on high-performance servers.
REST API
Paid members get an API key for image upload, enlarge tasks, result queries, and task retries, with cURL and Python examples.
Desktop and Mobile Apps
Windows and Mac desktop apps plus iOS and Android apps alongside the web tool.
Server Region Choice
Default servers are in mainland China; logged-in users can switch to US servers for faster downloads.
Pricing
- 20 images per month
- Slow speed on shared server
- 5MB max upload (3000x3000px)
- Up to 4x enlargement
- Offline enlarging when logged in
- 500 images per month
- Top-priority high-performance server
- 50MB max upload
- Up to 16x enlargement
- Batch mode and parallel enlarging
- API access
- 1,000 images per month
- Top-priority high-performance server
- 50MB max upload
- Up to 16x enlargement
- Batch mode and parallel enlarging
- API access
- 2,000 images per month
- Top-priority high-performance server
- 50MB max upload
- Up to 16x enlargement
- Batch mode and parallel enlarging
- API access
Best For
Upscaling Anime and Illustrations
Artists and fans enlarge anime artwork, wallpapers, and digital illustrations with clean lines and preserved colors.
Print-Ready Enlargements
Enlarge small images up to 16x for posters, merch, and print where the original resolution is too low.
Cleaning Compressed Images
Use noise reduction to remove JPEG artifacts from low-quality web images while enlarging them.
Automated Upscaling via API
Developers and content teams integrate the Bigjpg API to upscale images in bulk within their own workflows.
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