Kolorize vs AI Image Upscaler on AI Image Enlarger

Kolorize is an online photo colorizer that turns black-and-white and vintage images into full-color restorations using proprietary AI models. Upload a photo up to 4096×4096, preview unlimited variations for free, and pay only when you download a result you want to keep.

The service handles family portraits, historical archives, and sepia or yellowed vintage prints. Processing typically takes three to eight seconds per image, with grain and resolution preserved rather than painted over.

Kolorize also offers video colorization and sells credit packs instead of subscriptions. Credits last two years, cover commercial use, and are charged only on download, not preview.

This Imglarger photo editing tool enlarges JPG, PNG, or WebP images to 2x or 4x resolution in your browser. You upload a file up to 10 MB and 1024 px wide, pick a scale factor, and the model sharpens edges and textures for 4K screens, product catalogs, or social posts. It handles portraits, AI art, anime frames, and product shots without installing desktop software.

Standard resize tools stretch pixels and leave blurry blocks. Imglarger's upscaler rebuilds detail with a focused workflow: upload, choose 200% or 400%, preview side by side, then download. You give up local batch power on the free tier and must trust cloud processing, though files auto-delete within six hours.

E-commerce teams batch-prepare catalog assets on paid plans. Digital artists upscale Midjourney or Stable Diffusion outputs, and photographers rescue compressed client files before print runs.