Image Converter & Compressor Online
Convert image formats, compress images, resize photos, and reduce image file size directly in your browser.
Image Preview & Results
Upload one or more images to see previews, dimensions, file sizes, and processing results.
What Is an Image Converter and Compressor?
An image converter changes an image from one supported format to another, while an image compressor helps reduce image file size. This online image converter and image compressor combines both tasks so you can convert image formats, compress JPG, compress PNG, compress WebP, resize photos, and download the processed files from one simple interface.
Because the image conversion tool uses browser-based JavaScript, supported images can be processed locally without an image-processing API or external upload service. This makes the tool useful when you need a free image converter, photo compressor, image size reducer, or image optimizer for everyday files.
How to Convert and Compress an Image
- Upload your image using the upload box or drag and drop.
- Select the desired output format such as JPG, PNG, or WebP.
- Adjust the image quality slider.
- Enter a width or height if you want to resize the image.
- Click the processing button.
- Preview the converted or compressed result and compare file sizes.
- Download the processed image.
Why Compress Images?
Compressing an image can reduce file size, make sharing easier, reduce storage usage, simplify uploads, and help pages and applications work with smaller image assets. The amount of reduction depends on the original image, dimensions, format, and selected quality.
- Smaller image file sizes
- Faster transfers and easier sharing
- Reduced storage requirements
- Convenient uploads
- Better performance when smaller image assets are appropriate
Image Format Guide
JPG / JPEG
JPG is widely used for photographs and other images where a compact file is useful. It uses lossy compression, so lowering quality can reduce file size but may also reduce visual detail.
PNG
PNG is useful when lossless image storage or transparency is important. PNG output can be larger than JPEG or WebP for some photographic images.
WebP
WebP supports both lossy and lossless compression and can provide efficient image delivery and smaller files for many types of images. Browser support is broad in modern browsers.
Common Image Conversions
Use this image conversion tool for common workflows such as JPG to PNG, PNG to JPG, JPG to WebP, PNG to WebP, WebP to JPG, and WebP to PNG. The conversion creates a new image rather than simply renaming the original file extension.
Frequently Asked Questions
What is an image converter?
An image converter changes a supported image from one format to another, such as JPG to PNG or PNG to WebP.
How can I compress an image online?
Upload an image, choose an output format, adjust the quality, optionally resize it, and process the image. The result can then be downloaded.
Can I convert JPG to PNG?
Yes. Select PNG as the output format and process the uploaded JPG image.
Can I convert PNG to JPG?
Yes. Select JPG as the output format. JPG does not support transparency, so transparent areas may be rendered against the browser canvas background.
Can I convert JPG to WebP?
Yes. Select WebP as the output format and process the image.
Can I convert WebP to JPG?
Yes. Modern browsers can decode WebP and export the result as JPG using the canvas conversion process.
Does image compression reduce quality?
Lossy formats can trade some visual quality for smaller files. Use a higher quality setting when preserving more detail is important.
Can I resize an image before compression?
Yes. Turn off “Don't Resize,” enter the desired dimensions, and keep “Maintain Aspect Ratio” enabled when you want proportional resizing.
Is this image converter free?
The tool interface is designed as a free, browser-based image converter and compressor with no external processing API required.
Are my images uploaded to a server?
This implementation processes selected images in the browser with FileReader, Canvas, Blob, and related browser APIs. It does not contain code that sends the image files to an external image-processing server.
