KonvortakConvert and resize images
Open JPG, PNG, WebP, AVIF, BMP, static GIF, HEIC/HEIF or TIFF images. Export as JPG, PNG, WebP, AVIF, BMP, static GIF or TIFF, and resize while keeping the aspect ratio. Your files are not uploaded for processing.Get the right format and dimensions for your needs. It all happens on your phone.
- Up to 10 images
- 10 MB each
- Original kept
Ready to download
Your files
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How to convert and resize images
- Select your images in a supported format.
- Choose the output format and maximum width. The aspect ratio is preserved and smaller images are not enlarged.
- Compare the result, check its dimensions and transparency, then download.
Tool limits
The width is a maximum; small images are not enlarged. JPG, PNG and WebP: up to 64 MP input; other formats: 16 MP. Output stays within 16 MP and 8,192 pixels per side. JPG and BMP use white for transparent areas.
Up to 10 images, 10 MB each. JPG, PNG and WebP: up to 64 million pixels per image; other formats: up to 16 million. Output keeps the aspect ratio and stays within the maximum width, 16 million pixels and 8,192 pixels per side.
Frequently asked questions
Which output formats are available?
You can export as JPG, PNG, WebP, AVIF, BMP, static GIF or TIFF. HEIC/HEIF is supported as input only. GIF uses up to 256 colors; BMP and TIFF can produce larger files.
Does JPG preserve transparency?
JPG does not support transparency. This tool gives transparent areas a white background. Choose PNG or WebP if you need transparency.
Will the final image always have the width I enter?
It is a maximum. Smaller images are not enlarged. Output is also fitted within 16 million pixels and 8,192 pixels per side.
Can I recover detail by increasing the width?
This tool does not enlarge images or recreate detail missing from the original.
Privacy and checking your results
All current operations run on your device. Keep your originals and check the downloaded file. Learn how your files and advertising are handled.
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New features under evaluation
Not available in this version yet. Tell us what would help your work.