Private · browser-based

Image Compressor

Compress, resize, and convert images privately in your browser.

Drag & Drop your high-res image

Supports PNG, JPG, and WEBP files up to 50 MB

Choose your output

Set a file size, then we’ll handle the compression.

Choose a size100 KB

Choose a target to guide compression; the generated size can vary by image and format. Leave empty to use quality instead.

Advanced settingsFormat, size & privacy
80%

Compress Images Online

Reduce the file size of JPG, PNG, and WEBP images for email attachments, websites, forms, and document uploads. Choose a target size or quality, resize the image when needed, preview the result, and download it.

How to Compress an Image

  1. Select or drop a supported image.
  2. Choose a target size, quality, format, or dimensions.
  3. Select Compress image.
  4. Compare the original and optimized previews.
  5. Download the result when it looks right.

Supported Image Formats

JPG and JPEG work well for photographs, PNG is useful for graphics and transparency, and WEBP is a modern web format. The tool accepts files smaller than 50 MB.

Reduce File Size While Preserving Quality

Compression settings involve a quality and file-size trade-off. Higher quality usually preserves more detail, while resizing or using a lower quality can create a smaller file. Preview the output before downloading it.

More Milaira Tools

Learn how to reduce image file size, or explore PDF compression, PDF tools, and all free online tools.

Help center

How to use this tool

Quick answers for common tasks.
What is an image compressor?

An image compressor reduces an image's file size by changing its encoding, quality, dimensions, or format while keeping the result useful.

How do I compress an image?

Choose an image, select a target size or quality, optionally resize it, then choose Compress image and download the result.

Which image formats are supported?

Milaira accepts JPG, PNG, and WEBP images up to 50 MB and can convert between these formats.

Does compressing an image reduce quality?

Lossy formats and lower quality settings can reduce detail. Preview the result and adjust the settings when visual quality matters.

Why should I reduce image file size?

Smaller images are easier to attach to email, upload to forms, store, and use on websites.

Is there a file-size limit?

The image compressor accepts supported images smaller than 50 MB.

What happens to my image after compression?

The image is processed in your browser. You can preview the result and download it when you are satisfied.