Image Resizer
High-precision bicubic image scaling with aspect ratio lock, percentage scaling, and social media presets. Process singles or entire batches instantly in-browser.
Drop images to resize, or click to browse
PNG · JPG · WebP · AVIF · Single or batch files
How to Use the Online Image Resizer
Process your images with three simple steps right in your browser.
Upload Your Image
Add your picture to inspect current dimensions, megapixel count, and aspect ratio.
Set Dimensions or Preset
Type exact pixel widths/heights, choose a percentage scale (e.g. 50%), or pick an Instagram/YouTube preset.
Apply & Download
Preview the resized result and download the scaled image in your preferred format.
Resize Images to Exact Dimensions & Social Presets
Scale images with aspect ratio locking, pixel dimensions, percentage sliders, and ready-made social media presets.
Aspect Ratio Lock
Automatically calculate corresponding dimensions to prevent awkward distortion or stretching.
Social Media Presets
Instant one-click sizing for Instagram posts (1080x1080), Stories (1080x1920), YouTube thumbnails, and banners.
High-Quality Bicubic Resampling
Smooth pixel interpolation prevents jagged edges and preserves sharpness when scaling photos up or down.
Batch Resizing
Scale multiple photos uniformly in a single batch to speed up content creation workflows.
Frequently Asked Questions
Everything you need to know about processing images with Docsy.
Will resizing my image distort it?+
Not if you keep the aspect ratio lock enabled, which automatically synchronizes width and height.
What are the best image dimensions for social media?+
Instagram Square is 1080x1080, Stories and Reels are 1080x1920, and YouTube thumbnails are 1280x720. Our presets configure these automatically.
Can I resize by percentage instead of pixels?+
Yes, switch to percentage mode to scale photos down by 25%, 50%, 75%, or any custom multiplier.