Resize Image
Change image size in pixels, by percentage or to ready-made social media formats. Your photos never leave your device.
- Never leaves your device
- No limits
- No sign-up
- No watermark
Quick answer: To resize an image, select your photos and pick an option: percentage (25%, 50%, 75%), a preset size (Instagram 1080×1080, Stories 1080×1920, Full HD) or width and height in pixels. Click "Resize" and download.
How to do it in 3 steps
- 1Click Select images and pick your photos.
- 2Choose a percentage, a preset size or pixels.
- 3Click Resize and download the image or the ZIP.
Why use Pronto Arquivo
Social media formats
Instagram square and portrait, Stories and Full HD in one tap, cropping from the center to fill the frame.
Keep proportions or crop
Choose whether the whole photo shrinks to fit or gets cropped to the exact size.
Batch resizing
Resize many photos to the same dimensions at once.
Private
Everything happens in your browser.
Frequently asked questions
How do I resize an image in pixels?
Type the width and/or height under the pixels option and choose "Keep proportions" or "Crop to exact size".
What is the best image size for Instagram?
1080×1080 for square, 1080×1350 for portrait and 1080×1920 for Stories and Reels.
Does resizing reduce the file size?
Yes. Fewer pixels mean smaller files. To shrink it even more, use Compress Image.
Are my photos uploaded?
No. Processing happens in your browser.
Is it free?
Yes, free with no sign-up and no limits.