How to resize an image without uploading it

Fit photos to a maximum size, scale by percentage, or set exact pixels — privately, right in your browser.

Resizing is the everyday image task: shrinking a photo to meet a form's upload limit, fitting an avatar's dimensions, or scaling artwork for a website. Most online resizers make you upload the photo to their server first. Toolsfully resizes it on your device instead — faster, no size caps, and your photos stay yours. It handles JPG, PNG, and WebP, alone or in batches.

Step-by-step

1. Open the Resize tool. Go to Image Tools — the Resize tab is selected by default.
2. Add your images. Drag them onto the drop area or click to browse. You can resize a whole batch at once.
3. Pick a mode. Fit within shrinks each image to fit your maximum width/height while keeping its shape (it never enlarges). Scale by percent resizes relative to the original. Exact size forces specific dimensions and may stretch.
4. Resize and download. Click "Resize & download." Each finished image saves with its new dimensions in the filename, like photo-1920x1080.jpg.

Tips

• "Fit within" is the safe default. It preserves aspect ratio and never distorts — ideal for meeting upload limits.
• Rotated phone photos work. Orientation metadata is respected, so portrait shots stay upright.
• Downscaling keeps quality; upscaling doesn't. Making images smaller looks great. To make a small image genuinely bigger, use the Upscale tab's AI mode instead.

Frequently asked questions

Does resizing reduce quality?

Shrinking an image is visually safe — detail is averaged, not invented. The tool uses high-quality smoothing for clean results.

What formats are supported?

JPG, PNG, and WebP, and each image keeps its original format when resized.

Is there a file-size limit?

No — since nothing is uploaded, there's no server cap. Very large images are limited only by your device's memory.