--- title: "Upscale image to 4K with AI, up to 8,000 px | Herofab" description: "Increase the resolution of a product image two or four times, so buyers can zoom into the fabric, the stitching and the details." url: https://herofab.app/tools/image-upscaler language: en updated: 2026-11-12 --- # Upscale product images, 2× or 4×. Upscale increases the resolution of a product image two or four times, so buyers can zoom into the fabric, the stitching and the details. **2** · credits per image · 4× +1 [Start free](https://app.herofab.app/login?lang=en&to=tool-upscale&entry_source=tool) Updated 12 November 2026 1. ### Upload the image Any product photo or on-model image. 2. ### Choose the factor 2× or 4×. 3. ### Download The upscaled image, ready for your product page. ## What you can set. Every option below is part of the Herofab studio. - **Factor:** 2× or 4× - **Largest result:** 8,000 px on the long edge ## What upscaling adds and what it leaves alone Upscale raises the resolution of an image by a factor of two or four, up to the largest result size listed among its settings. The factor is the only choice: the tool offers no format, background or scene, and it does not redraw the image. What changes is the number of pixels behind each seam, fibre and edge, which decides how far a buyer can zoom into a product page before the picture turns soft. The step behind the tool is restoration, not generation: the image is enlarged from what the source already shows, and the garment is not drawn again. Prints, logos and lettering, buttons, zips and pockets, the weave, the ribbing and the pattern scale are therefore the ones in the source image, at a higher resolution. Restoration has a limit of its own. Detail that the source never recorded cannot be brought back, which is why the checks below start with fabric and lettering. ## When to upscale and when another tool fits better Upscale is the right step when an image is finished and correct but too small: a supplier photo, an older listing image or a crop that falls short of the size a sales channel asks for, or one that turns soft as soon as a buyer zooms. It suits images whose content should not change at all. A source that is out of focus or heavily compressed is a different case; enlarging it makes the softness larger too, and a new photograph is the sounder fix. Other needs belong to other tools. When buyers should see one part of the product close up, Detail shot frames a close-up of the collar, the fabric, a print, the hardware or the stitching from the photo at hand. When the shape of the image is wrong and not its size, Extend frame changes the format without cropping. An image that is still to be made needs no enlargement afterwards: Virtual try-on, Ghost mannequin and Product studio deliver in 2K, with 4K as an option. ## What to check in an upscaled image before publishing An upscaled image is judged at full size, not fitted to the screen. Fabric is the first place to look: a knit, a twill or a denim weave should still read as fibre and thread, not as a smooth, painted surface. Edges come second. A bright or dark line running along the outline of the product, or along a hard seam, is a sign of over-sharpening and shows most clearly where a dark garment meets a white background. Lettering is worth comparing with the source letter by letter: brand labels, care labels, printed slogans and the engraving on buttons or rivets. Regular patterns such as stripes, checks and ribbing should keep their spacing across the whole garment. Flaws in the source grow with it, so compression blocks, noise in the shadows and dust on the fabric are easier to see after enlargement. File size grows as well, which matters where a sales channel sets an upload limit. ## Upscale, answered. **Can I upscale images not made with Herofab?** Yes. Upload any image you have the rights to use. **Can it recover detail that is not in the photo?** No. Upscaling is restoration, not generation: it sharpens what the photo holds and cannot bring back detail the photo never recorded — a blurred label stays unreadable. Compare small lettering with the source before you publish. **How do I get zoom-ready product images without reshooting?** Upload a product photo or an on-model image to Upscale and choose 2× or 4×; the largest result is 8,000 px on the long edge. Upscale sharpens what the photo holds and cannot bring back detail the photo never recorded, so a new photo is still needed where a label or a texture is blurred in the source. **Does upscaling change the format or the crop of the image?** No format is chosen in this tool. The factor, two or four times, is the only setting, and it applies to the width and the height alike. When a portrait image has to become a square, a story or a banner, Extend frame is the tool for that step. **Does a phone photo need upscaling before it goes into another tool?** No. A phone photo is enough as the source for Virtual try-on, Ghost mannequin and Product studio, and those tools deliver in 2K, with 4K as an option. Upscale is meant for a finished image that is too small for zoom or for the size a sales channel asks for. **Should a photo be upscaled two times or four times?** The factor multiplies the width and the height alike, so four times makes a much larger and heavier file than two times. Choose the factor whose result reaches the size that zoom or the sales channel asks for, and no more. A larger result does not add detail that the source photo did not record. **Does an upscaled image carry an AI marker in the file?** Yes. Every image Herofab delivers carries a machine-readable AI marker inside the file, and an upscaled image is a delivered image like any other. The free AI image checker reads the marker in the browser, which makes it a quick check after any later edit that might have removed the file's metadata. **How much does it cost?** 2 credits per image. In US dollars that is $0.08 to $0.24 per image before tax, from the largest plan to the smallest credit pack. The cost is shown before you generate, and if a job fails the credits are returned. The 20 free credits at sign-up cover 10 images with this tool. Glossary [Image zoom](https://herofab.app/glossary/image-zoom) · [HEIC](https://herofab.app/glossary/heic) · [Image file size](https://herofab.app/glossary/image-file-size) · [Detail shot](https://herofab.app/glossary/detail-shot) · [DPI](https://herofab.app/glossary/dpi) · [Image dimensions](https://herofab.app/glossary/image-dimensions) · [Megapixel](https://herofab.app/glossary/megapixel) · [WebP](https://herofab.app/glossary/webp) · [Image compression](https://herofab.app/glossary/image-compression) · [Image upscaling](https://herofab.app/glossary/image-upscaling) · [All terms](https://herofab.app/glossary/) Guides [Why do AI photos look fake? How to make them look real](https://herofab.app/guides/how-to-make-ai-product-photos-look-real) · [Amazon product image requirements](https://herofab.app/guides/amazon-product-image-size) · [Walmart product image requirements](https://herofab.app/guides/walmart-product-image-requirements) · [Kaufland product image requirements](https://herofab.app/guides/kaufland-product-image-requirements) · [All guides](https://herofab.app/guides/) Related tools [Remove background](https://herofab.app/tools/background-remover) · [Extend frame](https://herofab.app/tools/extend-image) · [Detail shot](https://herofab.app/tools/detail-shot) · [All tools](https://herofab.app/tools/)