How to use the image resizer
- Drop one or more images onto the upload area, or click Choose files.
- Enter a width or height in pixels (the other side follows when the aspect ratio is locked), pick a preset, or switch to percentage mode.
- Optionally change the output format and quality.
- Click Resize. Preview the result, then download single files or a zip.
Features
- Pixel or percentage resizing with a live size preview
- Aspect-ratio lock, or free resizing when you need exact dimensions
- Presets for HD, Full HD, 4K, square and common social media sizes
- Batch resizing: the same settings apply to every image
- High-quality resampling and EXIF orientation handling
Resizing versus compressing
Resizing changes how many pixels an image has; compressing changes how efficiently those pixels are stored. If a photo is 4,000 pixels wide and will be shown at 800, resizing removes the wasted detail and usually shrinks the file far more than compression alone. For the smallest result, resize first and then run the output through the Image Compressor.
Upscaling
You can enter a size larger than the original, and the tool will scale the image up using smooth interpolation. This makes a bigger file but cannot add real detail; the result will look softer. Proper AI upscaling is on the roadmap, so for now enlarging is best kept to modest amounts.
Preset sizes
Presets fit the image inside the target box while keeping its proportions, so nothing is cropped or stretched. The included presets are:
- HD 1280×720, Full HD 1920×1080, 4K 3840×2160 and a 1080×1080 square
- Instagram post 1080×1350 and story 1080×1920
- YouTube thumbnail 1280×720, Open Graph 1200×630, X header 1500×500, LinkedIn banner 1584×396