Compress Images Online for Free

Reduce JPG, PNG and WebP file size directly in your browser. Preview the original and compressed image, adjust quality, resize large files and download a smaller image for websites, email, forms and social media.

Drag & Drop Image Here
Upload JPG, PNG or WebP and reduce image file size instantly
or
Supported formats: JPG, PNG, WebP. No sign-up required.

Original Image

Preview the original image before compression. Drag to move and use the wheel to zoom.
Your uploaded image will appear here.
Original File
No file loaded.
Settings
Quality: 80%

Compressed Preview

See the compressed result before downloading. Drag to move and use the wheel to zoom.
Your compressed image will appear here.
Compressed File
Compression result will appear here.
File Reduction
Reduction details will appear here.
80%
No image selected yet.
Input type
Mixed
Original size
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Compressed size
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Saved
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Free online image compressor for JPG, PNG and WebP

PictLab helps you compress images online without installing software. Upload an image, choose a quality level, resize it if needed and compare the original file with the compressed preview before downloading.

Smaller images are easier to upload, send by email and publish on websites. They can also help pages load faster, especially when photos are very large or come directly from a phone or camera.

How to compress images online

  • Upload a JPG, PNG or WebP image using the button or drag and drop area.
  • Choose the compression quality and output format.
  • Optionally resize the image to 1920px, 1280px or 800px before compression.
  • Preview the compressed result and compare file size reduction.
  • Download the optimized image instantly.

Best uses for image compression

Website images

Reduce large photos before uploading them to blogs, landing pages or online stores.

Email attachments

Make images easier to send when attachment size is limited.

Online forms

Prepare files for forms that reject images above a maximum file size.

Social sharing

Create lighter images for faster sharing on messaging and social platforms.

Related image tools

Resize Image

Change image dimensions before or after compression.

Image Converter

Convert images between JPG, PNG, WebP and other formats.

Images to PDF

Combine images into a PDF file for documents or sharing.

Watermark Image

Add text watermark to protect or brand your images.

Frequently asked questions

How do I compress an image online?

Upload your image, choose the quality level, click Compress Image and download the optimized result.

Which image formats are supported?

You can upload JPG, PNG and WebP files. You can also keep the original format or export to JPG, PNG or WebP.

Will compression reduce image quality?

Lower quality settings can reduce visible quality, but they also make files smaller. Use the preview to choose the best balance.

Can I resize images before compression?

Yes. You can limit the largest side to 1920px, 1280px or 800px before compressing the image.

Can I preserve PNG transparency?

Yes. Choose Preserve transparency for transparent PNG images, or select a white background when exporting to JPG.

Do I need to create an account?

No. PictLab image compression works without sign-up and gives you an instant download after processing.