- 100% FREE - UNLIMITED
Image Compressor
Drag & drop images here
or click below to browse your device — select as many files as you like
Supports JPG, PNG, WebP, GIF, BMP and other browser-readable formats · Max 40 MB per file
No images yet
Upload files above to see previews, sizes, and compression results here.
- 100% Free Access
- Unlimited Conversions
- No Signup Required
- Fast & Secure
- Simple steps
How it works
Upload your images
Drag your images into the upload area or click Choose Images to browse your device for images. Upload several images at once to compress images conveniently in batch.
Customize compression settings
Select a compression preset, including Low, Medium or High. Set the quality level, choose an output format, resize images as necessary, and limit the size of images (max dimension).
Download compressed images
Images are compressed by applying your settings. Download single files or use Download All to download your compressed images at the same time.
- Benefits
Why use our Image Compressor
Compress images
Reduce large-sized images in a way that they are small and easy to upload, share, store and use online.
Control image quality
Use the quality slider to get a balance between loss of quality and file size.
Compress multiple images
Compress several images at once rather than compressing each image separately.
Resize images
When you want to shrink an image's size as well as the size of the image file, you can set custom width and height values.
Set a maximum size
With the maximum dimension cap, you can automatically cap large images, such as images larger than Full HD.
Choose an output format
Maintain the original format or use one of the available output formats as per your compression needs.
- Use cases
Popular uses for an Image Compression Tool
Website optimization
Save images at smaller sizes before uploading them to the website to ensure that image files are not too large and cause problems for website management.
Social media images
Resize photos for upload to social media where they are smaller to upload and share.
Email attachments
If you're sending images and other visual content via email, make sure the images are small.
E-commerce product images
Optimize product images to produce smaller image files without sacrificing proper image quality.
Blog and content images
Optimize the size of photos before posting them on blogs, articles, landing pages, and web content.
Storage optimization
Create small libraries of large images to save space on the device.
Faster file sharing
Save smaller-sized images that are easier to send via messaging, the cloud and other applications.
Photography workflows
When you need a smaller version of a high resolution photo, shrink it!
- Compression
Customize your image compression
Compression settings
Adjust the image compression to your needs. This allows you to have control over the optimisation of images.
Compression presets
Select LOW, MEDIUM or HIGH compression, and adjust based on the desired image quality or file size.
Quality control
Adjust the intensity of compression and determine a good level of compression and file size balance with the quality slider.
Output format
When applicable retain the original image format or select another supported format for your workflow.
Resize images
To reduce the size of images, enter a custom width and height. When you don't want to change the size of the field, leave the fields as Auto.
Maximum dimension cap
You can set a maximum size, like 1920px (Full HD), so that oversized images are automatically cropped.
Auto-compress on upload
Allow automatic compression, which will compress images as soon as they are uploaded.
Fix EXIF orientation
Allow users to correct the orientation of photos if the camera's orientation information is incorrect.
- Technical
How image compression works
To store an image, the amount of data need to be reduced; this is called image compression. Unnecessary or less important image data can be eliminated to create a smaller image file, depending upon the image format and compression settings.
Using our Online Image Compressor you can manipulate some of the key features, including output format, level of compression, quality and dimensions. This way, you can decide about the level of size reduction and/or visual quality you desire.
The tool also offers batch processing capabilities, allowing users to optimize several images simultaneously.
Lossy vs lossless compression
Lossy compression discards or discards details of the image, thus sacrificing quality for smaller file sizes. Typically, the quality level is a compromise between quality and compression.
Lossless compression: smaller file sizes. PNG files are typically compressed losslessly, which means they are good for use when preserving image data is important.
Resize and compress images
Another way to compress the size of an image is by shrinking the size of the image. For instance, if your photograph is very large, you might not need its original size for a website, an email or a post on social media.
The resize controls and maximum dimension cap can help to make the images more manageable.
- Compress multiple images at once
- Adjustable compression quality
- Low, Medium, and High presets
- Optional image resizing
- Maximum dimension control
- Multiple image format options
- EXIF orientation correction
- Automatic compression on upload
- Individual or bulk downloads
- Free online image compression
- Comparision
Before and After Image Compression
| Feature | Original Image | Compressed Image |
|---|---|---|
| File Size | Larger | Smaller |
| Image Quality | Original | Adjustable |
| Dimensions | Original | Can be resized |
| Storage | Uses more space | Uses less space |
| Sharing | Larger file transfer | Easier to share |
| Website Use | May be oversized | More optimized |
| Processing | Uncompressed/less optimized | Compression applied |
- Troubleshooting
Common Image Compression Problems & Fixes
The image quality is not satisfactory
If the image when compressed appears significantly different, increase the quality setting or select a lower compression preset.
File size is still too large
Adjust the compression or size of the image with the resize functions.
The image size is too big.
Set a limit for oversized images with the help of the Max Dimension Cap.
Photos appear rotated
Help correct the orientation information that cameras and mobile devices may store in the EXIF data: Enable Fix EXIF Orientation.
Large images require longer compression times
If it is a large/high resolution image, there will be more data to process. By decreasing their size, they can be simpler to manage.
Requires a large number of images to be compressed
Use the batch compression workflow rather than compressing individual images, and upload multiple images at once.
Need to get specific output format
If you want to convert compressed images to a supported format, use the Output Format setting.
To keep original dimensions
If you do not want to resize, leave the width and height fields as Auto.
- File formats
Supported Image Formats and Compression
JPG
JPG is commonly used for photos and general images. It can give significant compression savings with variable compression (lossy).
PNG
PNG is often employed for graphics, screenshots, logos and images that require lossless quality or transparency.
WebP
WebP is a new image format that is optimized for the web with both lossy and lossless compression.
GIF
Simple graphics and simple animation are usually rendered using GIF. Compression and browser support can vary depending on the image.
BMP
BMP files contain images that have relatively large file sizes. Compressing and converting BMP images to smaller sizes can make them easier to share and store.
Determine when to compress images
Use an Image Compressor when an image is too big to fit on a website, too big for an email attachment or upload limit, too big for the storage space, or too big for a sharing workflow.
- Questions
Frequently Asked Questions
What is an Image Compressor?
Can I Compress Image Online for free?
What types of images can I compress?
Is it possible to compress several images at the same time?
What are the ways of making images smaller?
Is there any loss in quality when compressing images?
Is there a method to compress images while resizing?
What does the quality setting do?
Which compression is optimum for website images?
Do you find this Online Image Compressor user-friendly?
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