Image Compressor
FreeReduce image file sizes without sacrificing quality. Supports JPG, PNG, WebP, AVIF.
Compress JPG, JPEG, PNG, WebP and AVIF images directly in your browser. Adjust image quality manually or use a target file size when you need an image to fit a specific upload limit.
Image compression reduces file size while keeping the image usable for websites, email attachments, forms, product listings and everyday storage. The best setting depends on the image itself, so you can adjust the compression and compare the result before downloading.
Compression is performed locally in your browser, so your image does not need to be uploaded to our server just to reduce its file size.
Input
Drop an image to compress
Drag & drop or browse files
JPG, PNG, WebP, AVIF · Max 50 MB
Max size: 50 MB
Settings
Compression Strategy
- Adaptive quality optimization
- Browser-side processing (100% private)
Result
No output yet
Upload an image and click Compress
How it works
Upload your image
Drag & drop or click to select any JPEG, PNG, WebP, or AVIF file up to 50 MB.
Choose quality
Use the quality slider to balance file size against visual quality — 80% is recommended for most images.
Download compressed image
Click Compress and instantly download the smaller file. No account required.
Why use this tool?
Faster uploads
Smaller image files take less time to upload to websites, forms and content management systems, especially on slower mobile or internet connections.
Fit upload limits
Email services, application forms and websites often limit attachment size. Compression can help reduce an image before uploading it without changing its pixel dimensions.
Processed in your browser
Compression is performed locally in your browser, so your image does not need to be uploaded to our server just to reduce its file size.
Use less storage
Compressing large photos and screenshots can reduce the amount of storage they use and lower the data needed when those images are shared or served online.
When Should You Compress an Image?
Before uploading to a website
Large images can increase page weight and take longer to load. Compress photos before adding them to a website, blog or CMS when the original file is larger than necessary.
Email and form attachments
If an image is too large for an email, job application, support form or document portal, compression can help bring the file closer to the required size limit.
Product and marketplace images
Compress product photographs before uploading them to an online store or marketplace when you want smaller files without unnecessarily changing the image dimensions.
Large photos and screenshots
Camera photos and high-resolution screenshots can take up significant storage. Compression is useful when the original file contains more data than you need for viewing, sharing or web use.
Understanding Image Quality and File Size
Image compression is a trade-off between file size and visual quality. A higher quality setting usually keeps more image detail but produces a larger file. Lowering the quality can reduce the file size further, but aggressive compression may introduce visible artifacts, softness or loss of fine detail.
There is no single quality percentage that works best for every image. A photograph, screenshot, illustration and already-compressed image can all respond differently. Choose the setting based on where you plan to use the image and how much visual detail you need to preserve.
Quality guidance
90–100%
Minimal quality reduction. Start here when fine detail is important or when you only need a modest reduction in file size.
75–90%
A practical starting range for many web photographs where visual quality and smaller file size both matter.
60–75%
More aggressive compression. Useful when smaller files matter more, but inspect the result because fine textures and details may become less clear.
Below 60%
Quality loss may become more noticeable depending on the image. Use lower settings when meeting a small file-size requirement matters more than preserving every detail.
Compression vs resizing
Compression reduces how much storage an image file uses while generally keeping the same pixel dimensions. Resizing changes the image's width and height in pixels.
For example, a 4000 × 3000 image can remain 4000 × 3000 after compression but use less storage. Changing it to 1200 × 900 is resizing.
If an upload requirement specifies a maximum file size in MB or KB, compression may help. If it specifies maximum width or height in pixels, an image resizer is usually the appropriate tool.
Quality mode vs Target Size
Use Quality mode when you want direct control over the compression level.
Use Target Size when you need the result to fit close to a particular file-size requirement, such as an upload form with a maximum allowed size.
Final file size can vary because different images and formats compress differently, so always check the generated result.
These ranges are practical starting points only. They do not guarantee a particular file size or visual result because every image compresses differently.
Image Formats Supported by FileSutra
JPG / JPEG
Best suited to photographs and images with many colours and gradients. JPG is commonly used for camera photos, product photographs, blog images and general web content.
PNG
Commonly used for screenshots, interface graphics, logos and other graphics. PNG files can sometimes remain larger than photographic JPG or WebP files because the format handles image data differently.
WebP
A modern image format commonly used on websites. It is useful when you want an efficient web-focused format while maintaining good visual quality.
AVIF
A modern format designed for efficient image compression and good visual quality. It can be useful for modern web workflows where the websites, browsers or platforms you target support AVIF.