Resize Image in Pixels Online (Exact W × H)
Dial in exact integer pixel width and height—pre-opened in Pixel mode (`600 × 600 px`)—with aspect-ratio lock, cover-crop, or fit padding and optional KB caps.
Supports JPG, PNG, HEIC, WEBP, PDF, SVG, TIFF, AVIF, GIF, BMP
No files selected yet. Drag & drop photos, documents or click browse above.
Popular Exact Pixel Resolutions Across Web, Social & Portals
Common pixel targets you can enter directly in Stage 2:
| Category | Pixel Dimensions (W × H) | Aspect Ratio | Typical Platform / Portal |
|---|---|---|---|
| US Visa / Avatar Square | 600 × 600 px | 1:1 Square | US DS-160, Saudi Visa, WhatsApp DP, Profiles |
| Passport / Exam Portrait | 413 × 531 px / 350 × 450 px | 3.5:4.5 | Indian/UK/EU Passport, SSC, UPSC, RRB |
| Social Feed & E-Commerce | 1080 × 1080 px / 1080 × 1350 px | 1:1 / 4:5 | Instagram, Shopify, Amazon, Etsy listings |
| Full HD Banner & Video | 1920 × 1080 px / 1280 × 720 px | 16:9 HD | YouTube thumbnails, hero headers, slides |
Multi-Step Downsampling Prevents Jagged Aliasing
Dropping a 48-megapixel (8000 × 6000 px) smartphone image straight into a single-pass browser canvas draw at 300 × 300 px introduces stair-stepped moiré patterns on hair, eyeglasses, and clothing fabric.
PixelKit’s Web Worker resampler steps down large dimensions cleanly with high smoothing quality, preserves sharp edges, and lets you prevent accidental upscaling ("Don’t upscale smaller images") when batch-processing mixed folders.
Zero Stretching (Cover Mode)
Automatically center-crops or top-crops excess edges when resizing rectangular photos into square pixel boxes.
Pixel + KB Combo
Need 350 × 450 px AND under 50 KB? Set both Stage 2 pixels and Stage 3 KB in one pass.
Unlimited Batch Queue
Resize 1 or 100 product photos to uniform pixel dimensions and download a single ZIP.
Related Presets, Calculators & Companion Studios
Jump directly to a pre-configured studio with exact settings locked in:
Instant 600×600 px resizer for visas & avatars.
1080×1080 px HD square image resizer.
1920×1080 px widescreen HD image resizer.
Convert pixel dimensions to physical centimeters.
Resize dozens of images at once locally.
Resize by physical centimeters at 300 DPI.