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Compress Image Online

Drop an image in to instantly resize and compress it. See the real quality and file size trade-off instantly before downloading. Nothing is ever uploaded to a server.

✓ Free✓ No signup✓ No upload✓ Works on iPhone, Android, Mac and Windows

Click to choose an image or drag one here
JPG, PNG, or WebP

Output format

Max width (px, 0 = original)

Quality — 0.80

ORIGINAL

—

COMPRESSED

—

Size reduction —

Encoding runs through canvas.getContext('2d').drawImage() then toBlob(callback, format, quality). Note: PNG output ignores the quality value (PNG is lossless in Canvas), and actual output size/quality can vary slightly by browser since each uses its own built-in encoder.

How to Compress Images for Free, Without Signup

Large image files can slow down your website and consume too much storage space. Our free Image Compressor allows you to instantly reduce the file size of your photos while maintaining an excellent visual quality. Whether you need WebP for a website or a smaller JPEG to send via email, this tool handles it effortlessly.

3 Simple Steps to Reduce Image Size:

Upload Your Photo: Click the drop zone or drag and drop your JPG, PNG, or WebP file into the area above.
Adjust Settings: Use the quality slider to find the perfect balance between file size and visual clarity. You can also specify a maximum pixel width to scale down massive photos.
Preview & Download: Compare the original and compressed sizes side-by-side in real time. Once you're satisfied with the size reduction, click "Download File".

100% Private Browser Processing

Many online image compressors require you to upload your personal photos to their servers, where they might be stored or analyzed. Our compressor works differently. Utilizing native browser technology, your images are compressed entirely on your device. Nothing leaves your computer, guaranteeing total privacy.

Use Compress Image on iPhone, Android, Mac and Windows

On iPhone and Android, tap the drop area and pick a photo from your library. The preview shows the size before and after, so you can stop at the right quality. On a Mac or Windows PC, drag the image in. The compressed image is saved to Downloads, and your original photo stays untouched.

When to Use It

Photos for a website that should load faster, passport or form uploads with a size limit, email attachments, and freeing up storage.

Tips for Better Results

Use the side-by-side preview to find the lowest quality that still looks fine to you. Small steps matter more than big jumps.
Keep your original. Compressing an already compressed JPG again lowers quality further.

Frequently Asked Questions (FAQs)

Should I resize my photo before compressing it?

Often yes. A 4000-pixel phone photo is far larger than most forms and websites need, so scaling it down with the maximum width setting usually saves the most space. Then fine-tune the quality slider if needed.

Which format gives the smallest file?

For photos, WebP or JPEG usually give the smallest files. PNG is better kept for graphics with sharp edges or transparency.

Can I compress images for free without signing up?

Yes, it is free. There is no account or signup, and we never add a watermark of our own to your file. It runs in your browser, so it works on iPhone, Android, Mac and Windows.

What quality setting should I use?

Start around the middle and compare with the preview. Lower it step by step until you notice a difference, then go one step back.

Why does my PNG not get much smaller?

PNG is lossless, so the quality slider helps less. Reduce the maximum width, or convert the image to WebP or JPG with Image Format Convert.

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