Low-quality download, old phone picture or a screenshot — convert it to a crisp high-resolution image. The AI rebuilds edges and text as it enlarges, so it does not just look bigger and blurrier.
Image Upscaler360 px JPEG → 4K · 4730 × 3547
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Quick answer
Updated
An HD photo converter turns a small or low-quality picture into a high-resolution one. On Kenerate AI you upload the photo, choose 2K, 4K or 8K, and the Image Upscaler engine rebuilds detail as it enlarges — 3 credits for any size (about 3.5¢). New accounts get 25 free credits and downloads have no watermark.
Real results
Every slider is a real Kenerate output from the bad input on the left. Drag to compare, then try the same photo.
01Text in images
A 360 px menu photo made poster-sharp — the letters stay the letters.
Image Upscaler · 360 px JPEG → 4K · 4730 × 3547
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02Upscale to 4K
480 px in, 5461 × 3072 out. Trees, snow and the cabin sharpen instead of smearing.
Image Upscaler · 480 px JPEG → 4K · 5461 × 3072
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03Low resolution
Skin, lashes and curls come back sharp — and it's still the same person. A faithful upscale, not a new face.
Image Upscaler · 300 px JPEG → 4K · 3664 × 4579
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04AI art
A 512 px fantasy render to 5461 × 3072 — towers, waves and dragons all sharper.
Ultimate Upscaler · 512 px render → 4K · 5461 × 3072
Try it nowGallery
Every image below is a real Kenerate output. Filter by problem, then open any one to compare before and after.
How it works
Upload, pick a resolution, download.
Add a JPG, PNG or WEBP up to 25 MB — a low-quality download, a screenshot or an old phone picture.
The converter uses the Image Upscaler engine: pick 2K, 4K or 8K. Every size costs the same 3 credits.
Compare with the original, then download PNG, JPG or WEBP — no watermark.
Reference
| Name | Pixels (16:9) | Megapixels |
|---|---|---|
| HD | 1280 × 720 | 0.9 MP |
| Full HD | 1920 × 1080 | 2.1 MP |
| 2K (QHD) | 2560 × 1440 | 3.7 MP |
| 4K (UHD) | 3840 × 2160 | 8.3 MP |
| 8K (UHD) | 7680 × 4320 | 33.2 MP |
Which should I pick? 2K is plenty for websites and social media. 4K is the safe choice for wallpapers, slides and most prints. 8K is for big posters and banners — the file is four times the size of 4K.
Photos are rarely exactly 16:9. The converter keeps your photo's shape and scales the long side to the resolution you pick — in our example a 480 × 270 landscape came out at 5461 × 3072.
At 100%
Small text is where a normal resize fails first. Here is the same crop both ways.
Text on a menu · 360 px JPEG → 4K · 4730 × 3547
Landscape to 4K · 480 px JPEG → 4K · 5461 × 3072
Seven engines
The converter uses Image Upscaler. For an exact print size or extra detail, the other engines are one tap away.
Faithful
Straight upscale to 2K, 4K or 8K that keeps the original texture.
Best for: Everyday photos and AI art to a standard size.
Up to 8K ~45s per image
UseFaithfulDEFAULT
Classic super-resolution — sharper edges, less noise, bigger image.
Best for: Quick clean-ups of AI renders, web images and product shots.
Larger, sharper copy ~25s per image
UseFaithful
Pick the exact size in megapixels — up to 128 MP, very fast.
Best for: E-commerce and design assets at a precise size, fast.
Up to 128 MP ~14s per image
UseFaithful
Higher-quality 2K / 4K / 8K upscale for pro restoration.
Best for: Marketing assets and photo restoration where fine detail matters.
Up to 8K ~19s per image
UseTurn your first photo into 4K — it is 3 credits and you start with 25.
More examples
Hover — or tap “Original” — to see what went in.
UpscalerTiny portrait
300 px JPEG → 4K · 3664 × 4579
UltimateAI concept art
512 px render → 4K · 5461 × 3072
ESRGANProduct shot
320 px JPEG → 2048 px
ESRGANAnime art
300 px → 1832 × 2290
Related jobs
In depth
The standards behind the names, and what size each use really needs — with sources.
Adobe notes that detail lost to JPEG compression is permanent — saving as TIFF won't bring it back [6]. An AI converter doesn't recover it either; it draws plausible new detail as it enlarges, which is why a converted photo looks sharper than a resized one but should still be checked on faces and text.
Start free
25 free credits on sign-up. The same credits work in every Kenerate tool.
Test on your own images before you buy anything.
One-time packs — use them this week or next year.
Nothing to cancel. Free results download clean.
The same credits work across images, video, voice and 3D.
We only publish real, verified reviews — never invented quotes. Send a line about your result (and whether we may quote you), and it will appear here.
FAQ
6 questions
Upload it to Kenerate's HD photo converter, pick 2K, 4K or 8K and press Upscale. The AI adds pixels and rebuilds edges, so the HD version is sharper than a normal resize. It costs 3 credits and new accounts get 25 free credits.
HD is 1280 × 720 pixels, Full HD is 1920 × 1080, 4K UHD is 3840 × 2160 and 8K UHD is 7680 × 4320. For a photo the long side matters most: 1920 px or more looks HD on most screens.
Yes, within limits. AI upscaling removes the blocky, soft look of small or compressed images. If the photo is blurry or grainy as well, use Phota Enhance, which repairs as it enlarges.
It is free to start: 25 free credits on sign-up, and an HD, 4K or 8K conversion costs 3 credits. There is no watermark.
Yes — 4K has about 8 million pixels, so expect a few megabytes. Download WEBP or JPG for a smaller file and PNG for the best quality.
Yes, with the separate AI video upscaler, which takes videos up to 4K.
Seven engines in one browser tool — faithful, creative and restoration — up to 8K or 128 MP.
Explore the toolkit
Every Kenerate page for making images bigger, sharper, cleaner and older photos new again.
Written by the Kenerate AI team
We build and run the Kenerate image upscaler; every example on this page is a real output of the tool from the input shown. Last updated 26 September 2026. Corrections: hello@kenerateai.com.
Ready when you are
25 free credits on sign-up. HD, 4K or 8K — 3 credits each. No watermark.
