Compress Image Files Before Uploading Them
Compress JPG, PNG, WebP, and AVIF files when an upload limit is tight, a page needs lighter images, or a file is unnecessarily large for sharing.
The tool keeps the original image format where possible and applies a lower quality or stronger compression setting to reduce file size.
How to use Image Compressor
Upload one supported image file.
Choose quality mode or target file size mode, then adjust the compression setting you want to use.
Download the compressed image after the file is reduced.
Compress JPG, PNG, WebP, and AVIF image files
Use the output quality slider to find a balance between visual quality and file size. Higher values keep more detail, while lower values usually produce smaller files at the cost of more visible quality loss.
This tool is useful when the image dimensions are already fine and the real problem is file size. That is common with email attachments, upload forms, listings, job portals, and websites that reject oversized images. You can either choose the quality manually or aim for a target file size such as 100 KB or 200 KB.
When compression helps more than resizing
Uploads with file size limits
If the image already fits the destination dimensions, compression is usually the first fix to try before changing the width and height.
Email and messaging
Reduce the file size without changing the basic format so the image is easier to send and less likely to be rejected.
Website and listing images
Keep the same format while making the file lighter for faster page delivery or cleaner upload workflows.
Compress images to a target file size
Use target file size mode when the destination gives you a hard limit, such as a portal that only accepts images under 100 KB or 200 KB. The tool tries to reach that file size or lower while keeping the original format where possible.
This works best for formats with more flexible quality control, such as JPG, WebP, and AVIF. PNG can still be reduced, but it does not always respond as aggressively to quality changes as photo-oriented formats do.
What the numbers can look like in practice
A common real-world example is a phone JPG that starts around 1.8 MB. If the dimensions are already correct, compressing it at a quality setting around 80 can often bring it closer to 420 KB. If the destination is stricter, target file size mode may push that same image toward 190 KB for a 200 KB cap or just under 100 KB when the upload is especially tight.
The result depends heavily on the image. Natural photos with smooth backgrounds usually shrink more cleanly than screenshots, diagrams, or flat graphics with hard edges. That is why a JPG photo may compress aggressively while a PNG screenshot barely moves unless you also resize it or choose a different format.
| Example scenario | Starting file | Typical outcome |
|---|---|---|
| Phone photo for a job portal | 1.8 MB JPG | About 420 KB at quality 80, or around 190 KB with a 200 KB target |
| Listing image for email | 940 KB WebP | Often around 240 KB with moderate compression |
| Screenshot-heavy PNG | 620 KB PNG | Smaller, but often not dramatically smaller without resizing too |
If you specifically need to compress an image to 100 KB or 200 KB, target file size mode is the best place to start. It turns the workflow into a clear yes-or-no check against the destination limit instead of making you guess the right quality number first.
Compress images for email, upload forms, and strict size limits
The most common real-world searches here are not about abstract compression theory. They are about getting a file under a limit so it can be sent by email, accepted by a job portal, or uploaded to a listing or account form without rejection. That is why this page supports both direct quality control and target file size mode.
If you need to compress an image to under 100 KB or 200 KB, start with the target limit instead of guessing quality blindly. If the image is a screenshot-heavy PNG and the size barely drops, that usually means resizing or a different format will help more than forcing lower quality alone.
Why this helps in real workflows
A job portal rejects the image because the file is too large.
An email attachment needs a smaller image file.
A website or listing should load faster with a lighter image.
A phone photo is much larger than the upload actually needs.
Common problems and fixes
The upload says the image is too large.
Start with a quality setting around 80, then lower it gradually if the form still rejects the file.
I want a smaller image but do not want to change formats.
Use image compression to stay in the same format while reducing the file size.
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Frequently asked questions
How do I compress an image online?
Upload a supported image, choose the quality level, and download the smaller image file.
Can I compress an image to under 100 KB?
Yes. Switch to target file size mode, enter 100 KB, and let the tool aim for that limit. If the image still looks too soft, resize it first and try again.
Will compression reduce image quality?
Usually yes. Lower quality settings can reduce file size more aggressively, but they may also soften details depending on the image format and content.
Which image formats are supported?
This compressor supports JPG, JPEG, PNG, WebP, and AVIF files.
What quality setting should I start with?
Around 75 to 85 is a practical starting point for uploads and sharing. Lower it gradually only if the file is still too large.
Can I compress an image to a target size like 100 KB or 200 KB?
Yes. Switch to target file size mode and enter the size you want in KB or MB. The tool aims for that size or lower when possible, while keeping the original format where possible.
Why is PNG harder to compress than JPG?
PNG does not respond to quality-based compression the same way photo-oriented formats do. Screenshots and flat graphics often need resizing or a different format strategy before the file size drops dramatically.