Image topic guide
Resize images
Resize, crop, and calculate dimensions for web and print with free image sizing tools.
Topic guides
Browse focused guides that compare related tools and link to the best starting point for your task.
- Compress imagesReduce JPG, PNG, and WebP file size in your browser with Utilnivo’s free image compressor.
- Resize imagesResize, crop, and calculate dimensions for web and print with free image sizing tools.
- Convert image formatsConvert JPG, PNG, WebP, HEIC, and SVG with free image format converters in your browser.
- Social media image toolsSize images for Instagram and social platforms, generate favicons, and create memes in your browser.
- Image enhancementBlur, upscale, optimize SVG, and build color palettes with free image enhancement utilities.
- Background and transparency toolsRemove image backgrounds and add watermarks with free transparency tools in your browser.
Tools in this guide
Overview
Resize images tools change pixel dimensions or crop to a subject. Use them before upload when platforms cap resolution or when you need exact widths for layouts.
Resize Image sets width and height with aspect-ratio locks. Crop Image and Crop Circle trim composition. Aspect Ratio and DPI/PPI calculators help plan print size from pixel counts. Instagram Resizer and Social Media Image Resizer map common platform dimensions.
Passport Photo Maker produces ID-style crops — confirm official requirements for your country before submitting government forms.
How to choose
- Exact pixel dimensions → Resize Image.
- Composition trim → Crop Image or Crop Circle.
- Print sizing math → DPI/PPI Calculator.
- Platform preset → Instagram Resizer or Social Media Image Resizer.
Frequently asked questions
Does resizing reduce quality?
Downscaling is usually safe. Upscaling cannot invent detail — use Image Upscaler for experimental enlargement.
Are aspect ratios locked?
Most resize tools let you toggle aspect lock. Turn it off only when you need deliberate distortion.
Can I batch resize?
Most tools process one image at a time in the browser.
Related workflows
These multi-step guides chain tools from this category for common jobs.