Free Image Resizer
Resize images by exact pixels, percentage, or aspect ratio in your browser. Free online image resizer — no upload to our servers.
About this tool
Image Resizer changes an image’s pixel dimensions by exact width/height, percentage, or while locking aspect ratio. Use it when you need web‑ready sizes, print dimensions, or smaller assets without installing desktop software. Optional filters and sharpening help after downscaling.
Best for: Single photos or graphics that need a specific pixel size for blogs, product pages, email, or social uploads.
How to use it
- Choose an image from your device (PNG, JPEG, WEBP, and other browser‑supported formats).
- Set width, height, or percentage. Keep aspect ratio locked unless you intentionally need a stretch or crop.
- Optionally apply sharpening or filters, then preview the result.
- Download as PNG, JPEG, or WEBP depending on whether you need transparency or smaller photo files.
Common problems and tips
- The resized image looks soft or blurry. Upscaling cannot invent detail. Prefer resizing down from a larger source, or start from a higher‑resolution original.
- HEIC from an iPhone will not open. Some browsers lack HEIC decoding. Convert to JPEG/PNG on your phone or computer first, or try Chrome/Edge on desktop.
- The page freezes on a huge photo. Close other tabs, try a smaller source, or crop first. Extremely large canvases are limited by your device RAM.
Related tools
- Image Upscaler — Upscale any image without losing quality.
- Bulk Image Resizer — Process multiple images in one batch.
- Image Compressor — Reduce file size without leaving the browser.