Choose your images
Select one or multiple JPG, PNG or WebP images from your device.
FREE IMAGE TOOL
Convert Image Online
Convert JPG, PNG and WebP images online for free. Choose your output format and quality, convert multiple images and download the results — no account required.
Drop images here
or choose JPG, PNG or WebP files from your device
Multiple images supported✓ Browser-based processing✓ No account required✓ Simple downloads
Your images
0 images
Output format
Smart conversionOriginal dimensions are preserved.
Transparent areas become white when converting to JPG. PNG keeps transparency. Browser support for WebP is required.
Ready to convertWe’ll convert every image and show the result before download.
✓
Your converted images are ready
Conversion complete.
Your images are read and converted directly in your browser. Octumi does not upload the selected images in this version.
QUICK GUIDE
How to convert an image
Change images between JPG, PNG and WebP formats in a few simple steps.
Choose an output format
Convert your images to JPG, PNG or WebP.
Choose the quality
Select 75%, 88%, 95% or 100% quality for the converted output.
Convert and download
Convert the images while preserving their dimensions, then download the results.
JPG, PNG OR WEBP?
Choose the right image format
JPG is useful for photos and smaller files. PNG is useful for graphics and supports transparency. WebP is a modern image format designed for efficient compression.
QUALITY & DIMENSIONS
Control quality without resizing
Octumi offers four output quality choices: 75%, 88%, 95% and 100%. The converter preserves the original image dimensions, so changing format does not intentionally resize the image.
FAQ
Image Converter FAQ
Is Octumi's image converter free?
Yes. You can convert supported images without creating an Octumi account.
Which image formats can I convert?
The tool accepts JPG, PNG and WebP and can output JPG, PNG or WebP.
Can I convert multiple images at once?
Yes. Select multiple supported images, convert them together and download the results individually or use Download all.
What happens to transparency when converting to JPG?
JPG does not support transparency, so transparent areas become white when converting to JPG. PNG can preserve transparency.
Does converting an image change its dimensions?
No intentional resizing is applied. This tool preserves the original image dimensions during conversion.
Does Octumi upload my images for conversion?
No. In this version, the selected images are read and converted directly in your browser.