🔒 100% Private · Client-Side
⚡ Free · Unlimited
AI Image Enhancer — Upscale Photos Up to 4×
Lanczos-3 resampling · Unsharp mask · AI modes · 100% free & private.
Unsharp Mask
Gaussian Denoise
Detail Boost
4 AI Modes
Split View
Sub-pixel resampling kernel that reconstructs high-frequency detail without ringing
Portrait / Product / Landscape presets tune sharpness & denoise to content type
High-radius Gaussian subtraction re-emphasises edge gradients after upscale
Bilateral-style smoothing suppresses JPEG block artifacts and sensor noise
High-frequency layer blended back in to restore micro-texture lost in smoothing
Professional-Grade Image Enhancement
Every pixel re-computed individually — no AI servers, no upload, no cost
Lanczos-3 Resampling
The gold-standard upscaling kernel. Evaluates a 6×6 pixel neighbourhood per output pixel using sinc-based weighting for sharp, alias-free results.
Unsharp Mask
Post-upscale sharpening via Gaussian subtraction. Recovers edge gradients degraded by interpolation without amplifying noise.
Gaussian Denoise
Suppresses JPEG block artifacts and sensor noise that become visible after upscaling. Strength tuned per enhancement mode.
4 AI Enhancement Modes
Auto, Portrait, Product, and Landscape presets adjust sharpness and denoise strength to content type — no manual tuning needed.
100% Client-Side Privacy
Every pixel is processed in your browser. Nothing is uploaded to any server — not even a thumbnail. Works fully offline.
Multi-Format Export
Download as PNG (lossless), JPEG 95% (print-ready), or WebP. WordPress users can save directly to the Media Library.
How to Use
Upload
Drag & drop any JPG, PNG, or WebP. Your photo never leaves your device — all computation is local.
Choose Scale
Pick 1.5×, 2×, or 4× upscale. 2× doubles resolution; 4× is ideal for printing.
Pick a Mode
Select Portrait for people, Product for sharp edges, Landscape for scenics, or Auto to let the engine decide.
Enhance
Hit Enhance Now. The Lanczos-3 resampler, unsharp mask, and detail-boost pipeline runs in seconds.
Compare
Use the Enhanced / Split / Original buttons to compare before and after side-by-side.
Export
Download as PNG, JPEG, or WebP. WordPress users can save directly to the Media Library.
Perfect For
Upscale product photos to 4× for Amazon / Shopify zoom requirements.
Turn web-resolution images into print-ready files at 300 dpi.
Restore and enlarge scanned or low-res archive photographs.
Upscale images to full 4K for Instagram, Pinterest, and banner ads.
Sharpen blurry screenshots and stock images for boardroom slides.
Recover fine detail in logos and illustrations for hi-res output.
How We Compare
| Feature | This Tool | Let’s Enhance | Upscayl | Gigapixel AI |
|---|---|---|---|---|
| Cost | Free | Freemium | Free (local app) | Paid |
| Privacy | 100% local | Server upload | Local app | Local app |
| No install needed | ✓ Browser | ✓ Browser | ✗ Install | ✗ Install |
| Max scale | 4× | 4× | 16× | 6× |
| Mode presets | 4 modes | ✗ | ✗ | ✓ |
| WordPress integration | ✓ Native | ✗ | ✗ | ✗ |
| Save to Media Library | ✓ | ✗ | ✗ | ✗ |
| Split view compare | ✓ | ✓ | ✓ | ✓ |
Frequently Asked Questions
Everything you need to know about client-side image enhancement
Ready to Enhance Your Images?
No account · No upload · No cost · Up to 4× resolution boost
