Bigjpg vs Krea Enhancer

Bigjpg enlarges user-provided images using deep convolutional neural networks. It can scale images up to 16x, reduce noise and compression artifacts, and enhance detail and sharpness. Users can choose photo or artwork styles, set enlargement from 2x to 16x, and select noise reduction from None to Highest. Batch processing and API access are listed, and the service links to Windows, Mac, iOS, and Android applications. The free plan allows 20 pictures per month, with a 5MB maximum upload and enlargement up to 4x. Paid plans allow uploads up to 50MB and enlargement up to 16x: Basic is $6 a month, billed 2 Months as a one-time payment; Standard is $12 a month, billed 6 Months as a one-time payment; Premium is $22 a month, billed 12 Months as a one-time payment. Bigjpg says uploaded images are used to provide the requested enhancement and deleted automatically within 24 hours for free accounts or 72 hours for premium accounts. It says uploads are not used for model training without explicit, informed consent. Users who are not logged in must keep the browser open during processing or the enlarged result will be lost.

Krea Enhancer uses AI to sharpen image details, improve clarity, and upscale blurry, pixelated, or low-resolution images. The workflow is to upload an image, enhance it, and download the result. It accepts PNG, JPEG, WebP, HEIC, and HEIF files and supports batch processing and API access. The Enhancer page says images can be upscaled to 8K in seconds, while paid plans list upscaling up to 22K, including paid options such as Topaz Standard. Free online use does not require signup or a credit card, but the number of free enhancements is limited; the Free plan's basic upscaling is limited to 2K resolution. The Free plan includes 100 compute units per day. Basic costs $9 a month for 5,000 units; Pro costs $35 a month for 20,000; Max costs $105 a month for 60,000; Business costs $200 a month for 80,000 and up to 50 seats. Krea lists plugins for Photoshop, After Effects, Premiere Pro, DaVinci Resolve, and Blender. Enhanced images may be used commercially.