Upload image Low-resolution image
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Upload the original
Choose the image that needs a larger, clearer output.
AI Upscaler
Fast edge-sharpening (zone transform) — enlarges up to 4× (inputs ≤ 2048px, output capped at 4096px). Best on line art & flat color. Heavier detail? Switch to EZ Upscale.
Mode
Upload image Click or drop an image · PNG, JPG or WebP
Try an example · ESRGAN
Advanced
ESRGAN has no advanced controls.
Image workspace · How it works
Upscale an image
Increase resolution and recover useful detail from a character image.
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Set the upscale
Choose the available scale or output settings for the result you need.
Higher resolution03
Check the detail
Zoom in on the result, compare it with the original and download it.
Your results stay available in All history and All recent jobs.
Free AI Image Upscaler — 2K, 4K & 8K
FREE TO TRY UP TO 8K GENERATIVE SUPER-RES
Free AI image upscaler with generative super-resolution — enlarge any image to 2K, 4K, or 8K with sharp, reconstructed detail, not the blur you get from normal resizing. Ideal for print and large-format.
Cartoon Anime Manga Flat color · razor edges Photoreal 3D render
Generative super-resolution, up to 8K
EZ Upscale reconstructs fine texture and detail instead of stretching pixels. Pick an output size from roughly 2K up to 8K, leave Enhance details and Enhance realism on for AI-generated art, and allow about 30 seconds per image.
Sharp on cartoon, anime and flat-color art
Normal resizing (bicubic) stretches pixels and blurs edges. The ESRGAN pass reconstructs sharp lines and clean detail instead, which shows up most on cartoon, anime and flat-color work. Both engines share the same click-to-load samples — 3D render, watercolor, cartoon and anime — so you can compare them on the same image.
An honest before and after
The comparison at the top of the page is a zoomed crop, because the difference only reads at magnification — and its “before” is cropped from the genuinely low-resolution source, never from the upscaled file. ESRGAN gives 2× guaranteed and 4× when the AI pass has capacity, capped at 4096px on the longest side, and the result banner always shows the exact resolution you received.
AI Image Upscaler — FAQ
Is the AI image upscaler free?
It's free to try — every account gets monthly free credits, and an ESRGAN upscale costs 0.5 credits. Sign up free and your monthly allowance covers casual use at no extra cost.
How much bigger does my image get?
2× guaranteed, 4× when the AI pass has capacity — capped at 4096px on the longest side. A 1024×1024 character comes back at 2048×2048, or 4096×4096 when the 4× pass lands. The result banner always shows the exact resolution you received, and each ESRGAN re-run costs 0.5 credits.
How is this different from just resizing?
Normal resizing (bicubic) stretches pixels and blurs edges. This uses an AI super-resolution model (ESRGAN) that reconstructs sharp lines and clean detail — especially visible on cartoon, anime, and flat-color art.
What file types and sizes can I upload?
PNG, JPG, or WebP up to 25 MB. Large and high-resolution images are optimized in your browser before upload. Drag and drop, paste from your clipboard, or reuse any image from your recent jobs.
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