Image Compressor & Resizer (Private, In-Browser)
Shrink JPG, PNG and WebP images by quality or to an exact target size like “under 200 KB”, resize the dimensions, and convert format. Nothing is uploaded.
Compress and resize images for websites, forms and social media in seconds. Choose a quality level or set an exact target file size (great for upload limits like “photo under 100 KB”), optionally resize the dimensions and convert between JPG, PNG and WebP. Everything runs in your browser, so your images never leave your device.
What this image tool can do
Compress by quality
Slide the quality down to shrink the file size while keeping the image looking good. Perfect for faster websites.
Hit an exact size
Need a photo under 100 KB or 1 MB for a form or exam application? Target-size mode finds the right quality for you.
Resize dimensions
Set a maximum width to scale large photos down to web-friendly sizes, keeping the aspect ratio.
Convert format
Export as JPG, PNG or the modern WebP format, which is usually the smallest for the same quality.
How to compress an image
- Choose or drag in a JPG, PNG or WebP image.
- Pick By Quality or To Target Size, and optionally set a max width and output format.
- Click Compress Image to see the before and after, with the percentage saved.
- Click Download to save the smaller image. Nothing is ever uploaded.
Frequently asked questions
How do I compress an image to a specific size like under 100 KB?
Switch to “To Target Size” mode, enter your limit (for example 100 KB), and click Compress. The tool automatically searches for the highest quality that fits under your target size. Use JPG or WebP output for the best results, since PNG is lossless.
Will compressing reduce the image quality?
Compression removes detail you usually cannot see, so at 70 to 85% quality most photos look almost identical while the file gets much smaller. The before and after preview lets you check the result before downloading.
What is WebP and should I use it?
WebP is a modern image format that is typically 25 to 35% smaller than JPG at the same quality. It is supported by all modern browsers, so it is a great choice for website images. Use JPG if you need maximum compatibility with older software.
Are my images uploaded to a server?
No. This tool uses your browser to process images with the HTML canvas. Your files never leave your device, which makes it safe for private or sensitive photos.
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