Resize an image with optional aspect-ratio locking and JPEG, PNG or WebP export.
ConvertersClick or drag an image here
Supports JPG, PNG, WebP
Processed locally. No upload.
Resizing images reduces file size for faster web loading, saves storage space, and ensures images fit correctly on different platforms like social media or websites.
β’ Instagram Square: 1080Γ1080 px β’ Twitter/X Header: 1500Γ500 px β’ Facebook Cover: 820Γ312 px
Your images are processed entirely in your browser. No data is ever sent to our servers.
Compare quality-adjusted JPEG or WebP exports and their actual file sizes.
Convert storage quantities using fixed powers of 1024 and view the unit breakdown.
Convert a length value into the supported measurement units.
Convert images to JPEG, PNG or WebP with optional quality, grayscale and rotation settings.
Convert supported HEIC files to JPEG or PNG in the browser and download each result.
Render SVG as PNG or trace raster images into an approximate SVG.
Upload your image by clicking the upload area or dragging and dropping a file.
Enter the desired width or height in pixels. Enable 'Lock Aspect Ratio' to automatically calculate the other dimension.
Choose your output format: JPEG, PNG, or WebP, and set the quality level if applicable.
Click 'Resize Image' and download the result.
Input and settings
A 1600 Γ 1200 image; aspect ratio locked; set width to 800 px.Expected result
Height becomes 600 px; the downloaded image should be 800 Γ 600.The scale factor is 800/1600 = 0.5, so 1200 Γ 0.5 = 600. Check the fileβs dimensions after download.
Resize photos to exact platform requirements β 1080Γ1080 px for Instagram, 1200Γ628 px for Facebook sharing, or 1500Γ500 px for Twitter headers.
Downscale high-resolution photos to web-friendly dimensions (e.g. 1920px wide) before uploading to your CMS to improve page load speed.
Resize images to small fixed widths (600px) so they display correctly in email clients without being clipped or distorted.
Resize images to precise dimensions required by print services or design templates before uploading to Canva, Photoshop, or print-on-demand platforms.
Image Resizer lets you resize any image to exact pixel dimensions directly in your browser β no software needed, no uploads, and your files stay on your device.
Found incorrect guidance or a result? Send the team steps and a non-sensitive example.
Compare quality-adjusted JPEG or WebP exports and their actual file sizes.
Convert storage quantities using fixed powers of 1024 and view the unit breakdown.
Convert a length value into the supported measurement units.
Convert images to JPEG, PNG or WebP with optional quality, grayscale and rotation settings.
Convert supported HEIC files to JPEG or PNG in the browser and download each result.
Render SVG as PNG or trace raster images into an approximate SVG.