Free Online Image Optimizer Tool

Q: What image formats can I optimize?

This tool accepts the most common web image formats: JPG (JPEG), PNG, and WebP. You can also convert between these formats during optimization.

Q: How does the 'Quality' slider work?

The Quality slider (available for JPG and WebP output) controls the level of compression. A lower value (e.g., 70) results in a smaller file size but may reduce visual quality. A higher value (e.g., 90) retains more quality but results in a larger file. The default (85) is often a good balance.

Q: Will optimizing PNG files reduce their quality?

PNG optimization performed by this tool is typically lossless, meaning it reduces file size by removing unnecessary metadata and using better compression techniques without discarding image data. Therefore, visual quality should not be affected when outputting as PNG.

Q: What does 'Match Input' format do?

Selecting 'Match Input' for the Output Format means the optimized image will be saved in the same format as the original image you uploaded (e.g., if you upload a PNG, the output will be an optimized PNG).

Q: Can I resize my images with this tool?

Yes! You can enter a Max Width and/or Max Height in pixels. The tool will resize the image down to fit within those dimensions while automatically maintaining the original aspect ratio.

Easily compress and optimize your JPG, PNG, and WebP images online. Reduce file sizes, resize dimensions, and convert formats to improve website load times and save storage space – all for free!

Image Optimizer Tool

1. Upload Image

2. Quality: 85

3. Output Format:

Max Width (px):

Max Height (px):

Upload an image (JPG, PNG, WebP) to begin.

Original

Filename: –

Dimensions: –

Size: –

Type: –

How to Use the Image Optimizer

Upload Image: Click the Upload Image button and select a JPG, PNG, or WebP file from your device.
Adjust Settings (Optional):
- Use the Quality slider (visible for JPG/WebP) to balance compression and visual quality (lower value = smaller size, lower quality).
- Select the desired Output Format (JPG, PNG, WebP, or Match Input).
- Enter Max Width or Max Height in pixels if you want to resize the image while maintaining aspect ratio. Leave blank to keep original dimensions.
Optimize Image: Click the Optimize Image button. The tool will process your image based on the selected settings.
Compare Results: A preview of the Original and Optimized images will appear side-by-side. Check the dimensions, file size, and size reduction percentage below each preview.
Download Optimized Image: If you’re satisfied with the result, click the Download Optimized Image button to save the compressed image to your device.
Reset: Click the Reset button at any time to clear the current image and settings and start over.

Why Image Optimization Matters

Large image files are a major cause of slow website loading times. Slow sites lead to poor user experience, higher bounce rates, and can even negatively impact your search engine rankings (SEO).

Image optimization is the process of reducing the file size of your images as much as possible without significant loss in visual quality. This results in faster page loads, reduced bandwidth consumption, and improved overall website performance.

Benefits of Using Our Image Optimizer Tool:

Reduce File Size: Significantly decrease image file sizes for faster website loading and reduced bandwidth usage.
Improve Performance: Faster loading images contribute to better user experience and potentially improved SEO rankings.
Optimize Multiple Formats: Compress popular web formats like JPG, PNG, and WebP.
Convert Formats: Easily convert images between JPG, PNG, and WebP formats as needed.
Resize Images: Optionally set maximum width or height to resize images while preserving aspect ratio.
Adjust Quality: Fine-tune the compression level for JPG and WebP images to balance size and visual quality.
Side-by-Side Comparison: Instantly see the original and optimized image previews along with size differences.
Free and Easy: Simple online tool, no software installation required, and completely free to use.

Support This Free Tool

If you find this free Image Optimizer helpful for speeding up your website or reducing file sizes, please consider supporting its maintenance and development. Your contribution helps keep tools like this available!

Donate via PayPal Ko-fi

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Image Optimizer FAQ

What image formats can I optimize?

This tool accepts the most common web image formats: JPG (JPEG), PNG, and WebP. You can also convert between these formats during optimization.

How does the ‘Quality’ slider work?

The Quality slider (available for JPG and WebP output) controls the level of compression. A lower value (e.g., 70) results in a smaller file size but may reduce visual quality. A higher value (e.g., 90) retains more quality but results in a larger file. The default (85) is often a good balance.

Will optimizing PNG files reduce their quality?

PNG optimization performed by this tool is typically lossless, meaning it reduces file size by removing unnecessary metadata and using better compression techniques without discarding image data. Therefore, visual quality should not be affected when outputting as PNG.

What does ‘Match Input’ format do?

Selecting Match Input for the Output Format means the optimized image will be saved in the same format as the original image you uploaded (e.g., if you upload a PNG, the output will be an optimized PNG).

Are my uploaded images kept private?

Yes. Image processing happens directly in your browser using JavaScript. Your images are never uploaded to or stored on our servers, ensuring your privacy.

Can I resize my images with this tool?

Yes! You can enter a Max Width and/or Max Height in pixels. The tool will resize the image down to fit within those dimensions while automatically maintaining the original aspect ratio.

Suggestions & Feedback

Got ideas for improving this Image Optimizer? Did it compress your image well, or did you encounter an issue? We welcome your feedback! Please reach out via our contact page to share your experience.

Disclaimer

This online Image Optimizer tool is provided “as is”. While it aims to reduce file sizes effectively, the final output quality and compression ratio can vary depending on the original image, the format selected, and the quality settings chosen. We do not guarantee specific compression results or that the optimized image will be suitable for all purposes without visual inspection.

Image processing is performed in your browser using JavaScript. Your images are NOT uploaded to or stored on our servers, ensuring your privacy and data security.

You are solely responsible for ensuring you have the legal right to use and modify any images you process with this tool. By using this service, you agree to take full responsibility for the content you optimize and download.