Resize Image
Resize Image is a free online image tool for changing PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF files into PNG files. Resize Image accepts 6 MIME types, returns image/png, includes 4 settings, and runs in your browser on the device.
Drop .png / .jpg / .jpeg / .webp / .gif / .bmp / .avif file here
or click to choose — or paste an image with ⌘V / Ctrl+V
Options
Key facts
- Input
- 7 formats: PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF (image/png, image/jpeg, image/webp, image/gif, image/bmp, image/avif)
- Output
- PNG (image/png)
- Runtime
- your browser on the device
- Settings
- 4 controls: Mode, Width, Height (0 = auto), and Keep aspect ratio
- File mode
- 1 input file creates 1 output file
- Cost
- $0, no account required
How to use Resize Image
- 1
Open your PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF file
Drop your PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF file onto the page, or click to browse and pick one from your device.
- 2
Choose options
Adjust the conversion options to suit your needs. Defaults work well for most inputs.
- 3
Convert and download
Click Convert. Your PNG file is ready to download in seconds.
Resize Image details
First, Resize Image reads PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF source files and prepares PNG output for the image workflow. Next, The visible controls are Mode, Width, Height (0 = auto), and Keep aspect ratio. Additionally, Files and text stay in the browser session.
Drop in an image and resize it by exact pixels or by percentage. Keep aspect ratio on (recommended) and the unspecified dimension is derived automatically; or set it explicitly to fit-within bounds. The canvas uses high-quality (browser-native bilinear/bicubic) image smoothing for the resample. Output format matches the input where possible, defaulting to PNG. Resize Image runs locally in your browser.
Common searches
- resize image
- image resizer
- resize picture
- resize jpg
- resize png
- image resize tool
Related tools
Tools that work with the same formats — most users open one of these next.
Invert Image Colors
Invert (negate) the colors of any image — runs entirely in your browser.
Rotate Image
Rotate an image 90°, 180°, or 270° — lossless, runs entirely in your browser.
Image Cropper
Crop any image (PNG, JPG, WebP, GIF, BMP, AVIF) right in your browser — drag a box, hit crop.
Image to Grayscale
Convert any image to grayscale — pick the algorithm, runs entirely in your browser.
Blur Image
Blur any image with an adjustable radius — fast separable box blur, runs in your browser.
Flip Image Horizontally
Mirror an image left-to-right — lossless, runs entirely in your browser.
Frequently asked
What is Resize Image?
Resize Image is a free online image tool for changing PNG, JPG, JPEG, WEBP, GIF, BMP, and AVIF files into PNG files. Resize Image accepts 6 MIME types, returns image/png, includes 4 settings, and runs in your browser on the device.
What files does Resize Image accept and create?
Resize Image accepts PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF files (image/png, image/jpeg, image/webp, image/gif, image/bmp, image/avif) and creates PNG files (image/png). The page includes 4 settings: Mode, Width, Height (0 = auto), and Keep aspect ratio.
Do my files and data stay private?
Yes. Resize Image runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How do I use Resize Image?
Open Resize Image, drop in your PNG, JPG, JPEG, WEBP, GIF, BMP, AVIF file, choose any options, and click Convert. Your browser does the work locally and produces a PNG file you can save right away.
What is the maximum file size for Resize Image?
Because Resize Image runs in your browser, the maximum size depends on your device's available memory. Most modern phones and laptops handle files up to a few hundred MB without issues.