All Converter Pro
Resize Images Online
Resize images online for free. Set a width, a height or both, keep the aspect ratio, and download the resized JPG, PNG or WebP. No signup, no watermark.
About this Image Resizer tool
The image resizer changes the pixel dimensions of a photo or graphic. Enter a width, a height or both: with the aspect ratio kept, the image is scaled to fit inside that size without distortion, and with it turned off the image is stretched to the exact size. Use it to meet the size limit of a form, shrink photos for email and chat, or prepare pictures for a website.
How to use Image Resizer
- Open the tool and add your file, text or values.
- Review the available options such as page range, output format, quality, password or language.
- Start the process and keep the browser window open until it finishes.
- Download the result and continue with a related tool if needed.
Useful tips
- For scanned PDFs, tools with OCR support run text recognition automatically where possible.
- For large files, use compression tools before sharing by email or uploading to portals.
- For best results, upload clean files with the correct extension and avoid corrupted documents.
Frequently asked questions
How do I resize an image without stretching it?
Enter only a width or only a height and leave the other empty. The tool calculates the missing side from the original proportions. If you enter both, keep the aspect ratio option on and the image is scaled to fit inside that box.
Will resizing reduce the file size?
Usually yes, because fewer pixels mean less data. For the smallest file, also lower the quality or choose WebP or JPG as the output format.
Can I make an image bigger?
You can enter a larger size, but enlarging cannot add detail, so the picture will look softer. Resizing down gives the best results.
Which formats are supported?
JPG, PNG, WebP, GIF, BMP, TIFF and iPhone HEIC photos are accepted. You can keep the original format or convert to JPG, PNG or WebP at the same time.
Is the image resizer free and private?
Yes. It is free with no account and no watermark, and uploaded files are stored only temporarily under random names before automatic cleanup.