# AI Image Enhancer > Kenerate AI's image enhancer improves photo quality online by matching the fix to the problem: Phota Enhance repairs blurry, grainy and old photos, Real-ESRGAN cleans up and enlarges small or compressed images, and Image Upscaler outputs 4K or 8K. New accounts get 25 free credits, results take under a minute, and there is no watermark. URL: https://kenerateai.com/ai-image-enhancer Publisher: Kenerate AI (https://kenerateai.com) Last updated: 26 September 2026 ## Key facts - Fixes: Blur · grain · low-res · old damage - Output: Up to 4K or 8K - Free to start: 25 credits, no watermark - Time: About 25–40 seconds ## Steps 1. Add the photo — Upload the image you want to improve — JPG, PNG or WEBP up to 25 MB. 2. Pick the fix for the problem — Blurry, grainy, damaged or old → Phota Enhance. Just small or soft → Real-ESRGAN or Image Upscaler to 4K. Flat skin, hair or fabric → Recraft Creative. 3. Compare and download — Drag the slider to check the enhanced image against the original, then download it with no watermark. ## In depth ### Noise: light is grainy Adobe's Denoise team explains that light itself is noisy — the number of photons hitting each pixel varies — and the sensor's readout adds more, mostly in the shadows; high ISO and underexposure make it visible [1]. That's why night and indoor phone shots look grainy. ### Blur: shutter and focus Nikon's rule of thumb is a shutter speed of at least 1/focal length — 1/200 s at 200 mm — to avoid camera shake [2]. Slower than that, or with the focus on the wrong spot, fine detail never reaches the sensor cleanly. ### Compression: detail thrown away JPEG saves space by discarding detail; Adobe notes the loss is permanent and converting to TIFF won't restore it [3]. Messaging apps and social networks re-compress, which is why forwarded photos get worse each time. ### Built-in enhancers vs a dedicated tool Adobe's Denoise (2023) works on raw files and Super Resolution (2021) doubles width and height [1][4]; Google Photos' Unblur, launched on the Pixel 7 in 2022, reached all Google Photos users in 2024 [5]. Kenerate puts restoration, denoising and upscaling engines in one browser tool, for any photo format, on any device. References: [1] Adobe — Denoise demystified (2023): https://blog.adobe.com/en/publish/2023/04/18/denoise-demystified [2] Nikon — Shutter speed and camera shake (1/focal length): https://imaging.nikon.com/imaging/information/story/0082/ [3] Adobe — JPEG vs TIFF: https://www.adobe.com/creativecloud/file-types/image/comparison/jpeg-vs-tiff.html [4] Adobe — Super Resolution, from the ACR team (2021): https://blog.adobe.com/en/publish/2021/03/10/from-the-acr-team-super-resolution [5] Google — Photos editing features for everyone (2024): https://blog.google/products-and-platforms/products/photos/google-photos-editing-features-availability/ ## FAQ Q: What does an AI image enhancer do? A: It improves the quality of a photo automatically: it can sharpen blur, remove grain and JPEG artefacts, add resolution and repair old-photo damage. Kenerate's enhancer lets you pick the engine for the problem you have, so a photo that only needs to be bigger does not go through a heavy restoration. Q: Is the AI image enhancer free? A: It is free to start: new accounts get 25 free credits to test with, and bigger jobs use one-time credit packs that never expire. There is no watermark and no subscription. Q: How do I fix a blurry photo? A: Upload it and choose Phota Enhance. It is built for out-of-focus, shaken and soft photos and rebuilds edges, eyes and texture. In our example a blurred cat photo came back with sharp fur and whiskers. Q: How do I make a grainy photo clearer? A: Use Phota Enhance: it removes noise from dark, high-ISO phone shots and keeps the detail. A normal upscaler enlarges the grain along with the photo. Q: Can it enhance a photo of a face? A: Yes. Phota Enhance and Image Upscaler both keep the person looking like themselves. Creative engines such as Clarity Pro add the most detail but can change small features when the creativity dial is high. Q: What is the difference between an image enhancer and an upscaler? A: An upscaler makes the image bigger; an enhancer fixes what is wrong with it. Most good enhancers upscale too. On Kenerate the same tool does both — Phota Enhance repairs and enlarges up to 4K, and the other engines focus on size. Q: How do I enhance image quality in Photoshop? A: In Camera Raw use Enhance → Denoise for grain in raw files and Super Resolution to double the size; use Filter → Sharpen → Smart Sharpen for softness. It works, but each fix is a separate step and blur from missed focus is hard to fix by hand. Q: Can it make blurry text readable? A: It can make text look sharp, but be careful: when letters are too blurred to read, a restoration model guesses them. In our test on blurry handwritten notes, Phota Enhance turned smudged words into clean, plausible — but partly different — words. Don't rely on it for documents, receipts or number plates where every character matters. Q: Is it safe to upload personal photos? A: Your uploads and results are saved to your own private history so you can download them again. ## Related pages - AI image upscaler: https://kenerateai.com/ai-image-upscaler - Upscale image: https://kenerateai.com/upscale-image - Upscale image to 4K: https://kenerateai.com/upscale-image-to-4k - Increase image resolution: https://kenerateai.com/increase-image-resolution - HD photo converter: https://kenerateai.com/hd-photo-converter - Unblur image: https://kenerateai.com/unblur-image - Sharpen image: https://kenerateai.com/sharpen-image - Unpixelate image: https://kenerateai.com/unpixelate-image - Photo restoration: https://kenerateai.com/photo-restoration - Uncensored image enhancer: https://kenerateai.com/enhance-ai - Enhance AI art: https://kenerateai.com/enhance-ai-art - Anime upscaler: https://kenerateai.com/anime-upscaler - Bulk image upscaler: https://kenerateai.com/bulk-image-upscaler - Remove glare from photo: https://kenerateai.com/remove-glare-from-photo - Restore old photos: https://kenerateai.com/how-to-restore-old-photos - Best photo restoration software: https://kenerateai.com/best-photo-restoration-software - Denoise photos: https://kenerateai.com/how-to-denoise-photos - Increase image resolution: https://kenerateai.com/how-to-increase-resolution-of-an-image - Sharpen an image in Photoshop: https://kenerateai.com/how-to-sharpen-an-image-in-photoshop - All upscaler alternatives: https://kenerateai.com/image-upscaler-alternatives - Remini alternative: https://kenerateai.com/remini-alternative - Let's Enhance alternative: https://kenerateai.com/lets-enhance-alternative - upscale.media alternative: https://kenerateai.com/upscale-media-alternative - Upscayl online: https://kenerateai.com/upscayl-online - Bigjpg alternative: https://kenerateai.com/bigjpg-alternative - VanceAI alternative: https://kenerateai.com/vanceai-alternative - waifu2x alternative: https://kenerateai.com/waifu2x-alternative - Magnific AI alternative: https://kenerateai.com/magnific-ai-alternative - Topaz Labs alternative: https://kenerateai.com/alternatives/topazlabs-alternative ## Sources - Adobe — Denoise and Super Resolution in Camera Raw: https://helpx.adobe.com/camera-raw/using/enhance.html - Image noise — Wikipedia: https://en.wikipedia.org/wiki/Image_noise