Image Compressor
Compress JPG, PNG, and WebP images online with quality control, live previews, and private in-browser processing.
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Image Resizer & Compressor
Resize and compress JPG, PNG, and WebP images online with live previews, format options, and private in-browser processing.
Resize and compress images in your browser
Upload a JPG, PNG, or WebP image, set maximum dimensions, choose an output format, and download an optimized result without uploading your file to a server.
ResizeCompressNo upload
Original
Upload an image to preview the original file.
Optimized output
Your optimized preview will appear here after processing.
Original size
0 B
Output size
0 B
Size change
-
Percent change
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What this image resize and compression tool does
This tool resizes large images to fit within your chosen width and height while preserving the original aspect ratio. It can also compress output by exporting to JPG or WebP with a quality setting, which is useful for websites, email uploads, landing pages, ecommerce galleries, and CMS media libraries.
Because the processing runs entirely in the browser, you can quickly test different size and quality combinations without sending files to a remote server. That makes it practical for privacy-sensitive work and fast mobile use.
How it works
1
Load the image
Your JPG, PNG, or WebP file is opened directly in the browser so the tool can inspect its dimensions and format.
2
Scale it to fit
The tool calculates the largest output size that fits within your width and height limits without distorting the image.
3
Export optimized output
The resized image is rendered to a canvas and exported as JPG, PNG, or WebP, with quality-based compression for JPG and WebP.
Example resize and compression workflow
Input
- Format: PNG screenshot
- Dimensions: 3200 × 2000 px
- File size: 5.4 MB
- Goal: upload to a website hero section
Output
- Format: WebP
- Max size: 1600 × 1600 px
- Quality: 82%
- Typical result: much smaller file with strong visual quality for the web
A similar workflow works for product photos, blog thumbnails, social graphics, dashboard screenshots, and documentation images.
Related tools
Useful next steps for conversion, optimization, and publishing workflows.
🖼️
PNG to JPG Converter
Convert transparent PNG files into lightweight JPG exports for photos and content uploads.
🖼️
PNG to WebP Converter
Create modern WebP assets when you want smaller image files for the web.
🖼️
JPG to WebP Converter
Shrink photo-heavy JPG files into web-ready WebP output with quality control.
🖼️
WebP to JPG Converter
Convert WebP images to JPG when you need broader compatibility across apps and platforms.
🎨
Color Converter
Match brand and UI colors when preparing resized graphics or exported image assets.
🔐
Base64 Encoder / Decoder
Turn small optimized images into Base64 strings for inline embeds and testing.
FAQ
Does this image resizer upload my files?
No. The resize and compression process runs locally in your browser. Your image stays on your device unless you manually upload it somewhere later.
Can I keep the original aspect ratio?
Yes. The tool scales the image proportionally to fit within the width and height limits you enter. It avoids stretching by default.
Why is PNG quality disabled?
PNG is a lossless format, so browser quality sliders usually do not apply to PNG export. Resize can still reduce file size by lowering pixel dimensions.
What happens to transparency when I export as JPG?
JPG does not support transparency. Transparent areas are flattened onto a white background before download.
Explore This Tool in Context
Image Resizer & Compressor is part of the Image Resize & Compression Tools collection. If you want a broader view of similar workflows, open the Image Resize & Compression Tools category page or browse all QuickTools categories.
Common next steps after this tool include Image Compressor, PNG Compressor and JPG Compressor.
More in Image Resize & Compression Tools
View category hub →PNG Compressor
Compress PNG images online with preview, quality options, format conversion, and private in-browser processing.
Open tool →
JPG Compressor
Compress JPG images online with preview, quality control, format conversion, and private in-browser processing.
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WebP Compressor
Compress WebP images online with preview, quality control, format conversion, and private in-browser processing.
Open tool →
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