Compress Your Image Privately
Compress JPG, PNG, and WebP images to a specific file size directly in your browser.
How to Compress an Image to a Specific Size
1
Select File
Upload your JPG, PNG, or WebP image into the tool drag zone.
2
Set Mode & Target
Choose Target File Size (e.g., 200 KB) or manual quality percentage.
3
Format & Resize
Select your desired output format and optionally scale down dimensions.
4
Compress & Save
Click Compress Image, review savings, and download your optimized file.
Format & Compression Specs
- JPG: Ideal for photographic images with fine gradients and complex textures.
- PNG: Best suited for vector art, screenshots, and graphics requiring transparency.
- WebP: Highly efficient web format offering minimal file sizes with superior image quality.
- Client-Side Security: All compression runs directly inside your local web browser—no files are uploaded to any external server.
Frequently Asked Questions
How does the "Target File Size" compression mode work?
The tool uses a multi-pass optimization algorithm. It continuously measures the resulting file size against your requested target (e.g., 200 KB) and adjusts compression quality levels automatically until it finds the optimal balance.
What should I do if the tool cannot reach my target file size?
If an image has very high resolution, compression alone may not be enough to drop below a strict file size limit. Use the "Resize Image" option to set a lower maximum width or percentage reduction, then run the compression again.
Is my privacy protected when using this converter?
Yes, entirely. All image conversions and compression loops run completely client-side in your device's web browser memory using JavaScript and the Canvas API. Your photos are never uploaded to any remote server.
Which output image format should I choose?
Choose WebP for optimal web performance and modern browser support with small sizes, JPG for maximum compatibility with online application portals, or PNG if you require transparent backgrounds.
Can I use this image converter offline?
Yes. Since the entire processing logic is embedded inside the page's HTML and JavaScript, once the web page is loaded, you can compress images without an active internet connection.