How to Upscale Images with AI in 2026 (Step-by-Step Guide)

Go to Let's Enhance and create a free account using your email. You receive 10 upscaling credits immediately upon signup — no credit card required. Each credit covers one upscale operation, regardless of the scale factor (2x, 4x, or 8x all cost one credit). This gives you enough free processing to test the tool on a representative sample before subscribing.

Once inside the dashboard, you'll see your credit balance in the top right corner. The interface is minimal: an upload zone in the center, a settings panel on the right, and a processed images gallery at the bottom. Take 2 minutes to upload a test image at 2x before configuring any settings — this gives you a baseline to compare against as you adjust modes and scale factors in the following steps.

Drag-and-drop your image(s) onto the upload zone, or click 'Upload' to browse your file system. Let's Enhance accepts JPG, PNG, TIFF, and WebP files up to 30MB per image. For batch processing, you can upload up to 20 images simultaneously on any paid plan — free accounts process one image at a time.

Source quality matters even with AI upscaling. Starting with a 1,000×1,000px image and upscaling 4x produces a 4,000×4,000px output — but if the original has heavy JPEG compression artifacts (blocky areas, color banding), the AI will reproduce those artifacts at 4x scale before attempting to smooth them. For the cleanest results, start from the highest-quality source file you have: original camera JPG or RAW export is better than a screenshot or a social media download. If your only source is a compressed file, the Old Photo or Gentle mode (covered in Step 3) handles compression artifacts better than the default Prime mode.

Let's Enhance offers three AI modes, each trained on a different type of input image. Selecting the correct mode has the largest impact on output quality — a mismatch (e.g., using Prime on a watercolor illustration) produces over-sharpened, artificial-looking results. Prime is designed for modern photographs: portraits, product photos, real-estate interiors, food photography, and any image captured by a digital camera or phone. It enhances fine detail like skin texture, fabric weave, and product surface. Use Prime as your default for any realistic photograph taken in the last 20 years.

Gentle is designed for digital artwork, illustrations, graphics, and screenshots. It preserves clean lines, flat color areas, and the intentional stylization of the source — rather than trying to add photorealistic texture, it scales without introducing false detail. Use Gentle for: game screenshots, UI mockups, digital paintings, infographics, and any image where sharpening would look wrong. Old Photo is designed for scanned or photographed vintage prints: it handles grain, fading, dust spots, and compression artifacts from old physical media. Use it for family photos pre-2000, scanned documents, or historical image archives. It adds grain reduction and local contrast restoration that Prime does not apply.

After selecting the mode, set your output scale using the scale selector (2x, 4x, 8x). The right scale depends on your end use: 2x is sufficient for improving web images for Retina displays (e.g., a 800×600px product image scaled to 1600×1200px for HiDPI screens); 4x is the standard for most print applications — a 1,000px source image at 4x produces a 4,000px output that prints cleanly at 300 DPI up to about 13×10 inches; 8x is appropriate for very small source images (500px or below) being prepared for large-format print, poster, or billboard output.

Let's Enhance also shows you the output pixel dimensions and estimated file size before you process — check these against your platform requirements. Amazon product images require a minimum of 1,000px on the long side (prefer 2,000px). Instagram posts are capped at 1,080px. Large-format print at 300 DPI for an A3 sheet (16.5×11.7 inches) requires roughly 4,950×3,510px. Match your scale factor to hit these targets rather than always selecting the maximum — 8x on an already-large source file produces unnecessarily large files that take longer to process and download.

Click 'Start Processing' to begin. A single image at 4x takes 15–45 seconds depending on source resolution and server load. A batch of 20 images at 4x typically completes in 4–8 minutes. A progress indicator shows per-image status during batch processing. You'll receive an email notification when a batch is fully complete — useful for large jobs where you don't want to wait at the browser.

Once processing completes, click 'Download' next to any processed image or 'Download All' to get a ZIP of the full batch. Files are stored in your Let's Enhance gallery for 30 days after processing — plan to download and archive them before then, as the files are deleted automatically. Output format is typically PNG for maximum quality; if you need JPG for file size reasons (email, web), convert after download using any image editor.

Open the downloaded file and zoom in to 100% in any image viewer. Compare side-by-side with your original at equivalent zoom. The key things to check: face detail (eyes and teeth should appear sharper, not smeared or 'AI-smoothed'), texture fidelity (fabric, wood grain, and skin should look naturally detailed, not artificially crisp), and background rendering (out-of-focus bokeh should remain smooth, not gain false texture from the upscaling process).

If the result is over-sharpened (looks 'too crisp' or 'painted'), switch to the Gentle mode and re-run — this costs one additional credit. If the result has residual artifacts (blocky areas from heavy JPEG compression), try Old Photo mode, which handles artifact suppression more aggressively than Prime. On the free plan, you have 10 credits to experiment with — run the same image through two modes to compare before committing to batch processing a large catalog. For e-commerce specifically, test 3–5 representative SKUs across your product categories before processing your full catalog.