Image Compressor
Compress an image to JPEG with adjustable quality and maximum width while showing original and compressed file sizes.
About this image compressor
Compress photos locally for faster uploads and smaller attachments. The tool can lower JPEG quality and cap maximum width to cut file size.
Control image size without guessing
The compressor works in the browser and lets you adjust output quality and maximum width. Reducing pixel dimensions usually has a bigger effect on file size than repeatedly lowering quality on an already small image.
For form uploads, compare the final file size and visible clarity before using it. Photos can tolerate more compression than screenshots, signatures and text-heavy images.
How to use Image Compressor
- Choose a JPG, PNG or WebP image.
- Set the JPEG quality and maximum output width.
- Compress the image, compare original/output sizes and download the result if the quality is acceptable.
Frequently asked questions
Is Image Compressor free?
Yes. Divya Tools can be used without creating an account.
Does Image Compressor work on mobile?
Yes. The interface is responsive and works in current mobile and desktop browsers.
Is my data private?
Where technically feasible, processing happens in your browser. Some advanced tools may load third-party libraries or models needed to perform the task.
Editorial note: This page was manually reviewed on 16 September 2026 for tool behaviour, examples and limitations.
What actually reduces an image file size
Image size is controlled mainly by pixel dimensions, file format and compression quality. A 4000×3000 phone photo contains far more pixel data than a 1200×900 image, so reducing dimensions often saves more space than repeatedly lowering JPEG quality. For photographs, moderate JPEG compression usually gives a large reduction with small visible loss. For screenshots, signatures and graphics with sharp text, aggressive JPEG compression can create halos and fuzzy edges.
A practical workflow
First choose the maximum width required by the destination. If the website or form only displays an image at around 1200 pixels wide, keeping a 5000-pixel source rarely helps. Then adjust quality gradually. Start near 80–85% for normal photos and compare the result at 100% zoom. If text or thin lines become soft, increase quality or use a format better suited to that content.
Example: reducing a phone photo
A 4032×3024 JPEG might be several megabytes. Resizing it to 1600 pixels wide reduces the amount of image data dramatically before compression is even applied. A quality setting around 80% can then reduce the output further. Exact file size varies with image detail: a blue sky compresses much more easily than foliage, fabric or a noisy low-light image.
Before uploading to an official form
Check the final pixel dimensions and file size after compression. If the destination specifies a strict KB range, do not assume one quality percentage will always hit it. Different images compress differently. Keep the original file until the upload is accepted so you can try again without compounding compression loss.