Does compressing an image reduce its quality?

JPG and WebP are lossy, so they always discard some detail, and lower settings discard more. PNG keeps every pixel, but this tool makes a PNG smaller by reducing its resolution. Compare the result with the original before you use it.

Which quality should I choose?

Start with Balanced (82). High (92) keeps more detail and saves less. Small (68) and Tiny (50) give smaller files and visible softening on fine detail and text. The right level is the lowest one that still looks fine to you at the size it will be shown.

What is the difference between compressing and converting?

Compressing makes a file smaller. Converting changes the format, for example PNG to WebP. This tool does both in one step: you pick the output format and the quality.

Which format should I use?

WebP is usually smaller than JPG or PNG at similar quality, and current major browsers can show it. JPG is the safest choice when you do not know where the file will be opened. PNG is better for logos, screenshots and images with sharp text or transparency.

Why is there no quality slider for PNG?

Browsers save PNG without a quality setting. For PNG the tool offers Full, Light, Medium and Strong, which reduce the width and height to about 100%, 85%, 70% and 55%. For a smaller photo, choose WebP or JPG instead.

Are my images uploaded?

No. The images are redrawn and saved in your browser tab. They are not sent to our server.

Can I process several images at once?

Yes, up to 24, with the same settings. “Download all” saves the files one after another, so your browser may ask to allow several downloads.

What happens to a PNG with a transparent background?

It stays transparent in PNG and WebP. In JPG, which has no transparency, the transparent area is filled with white.

Can I use an HEIC photo from an iPhone?

No. The tool reads JPG, PNG, WebP, GIF and BMP. Convert the HEIC file to JPG on your phone or computer first.

Why is the new file larger than the original?

A file that was already compact can grow when it is saved again, especially a PNG at full resolution. Try WebP, a lower quality, or a smaller maximum size.

Does compressing images help my website?

Smaller images load faster, which helps visitors. Page speed is one of many things Google looks at, so do not expect compression alone to change your ranking.

Overview Image Compress & Convert Image Resize & Crop Metadata Cleaner

Drop images to compress

One file or a batch (up to 24). Convert to WebP, JPG, or PNG — free, private, no upload.

JPGPNGWebPGIFBMP

Smart presets

YouTube thumb, square, web sizes

Batch compress

Up to 24 images at once

100% private

Files never leave your browser

Image Compress and Convert

Make JPG, PNG and WebP images smaller, or convert between them. Runs in your browser with no upload or watermark. JPG and WebP lose some detail.

About the Image Compress & Convert

?What the image compressor and converter does

It makes image files smaller and changes their format. You add JPG, PNG, WebP, GIF or BMP images, choose JPG, PNG or WebP as the output, choose a quality, and optionally limit the size in pixels. Up to 24 images can be done in one go.

Everything runs in your browser. The images are not uploaded, and nothing is added to them. Because each picture is redrawn and saved again, the output is a new file, and a lossy format such as JPG or WebP does lose some detail.

→How to compress an image in 4 steps

Add your images

Drop up to 24 JPG, PNG, WebP, GIF or BMP files.

Choose the format

WebP is usually smallest. JPG works everywhere. PNG keeps sharp edges and transparency.

Set quality or size

For JPG and WebP choose High, Balanced, Small or Tiny. For PNG choose how much to reduce the resolution. You can also cap the width or height.

Check and download

Compare the before and after sizes, look at the picture, and download one file or all of them.

✓What is in the tool

Three output formats

JPG, PNG and WebP.

Four quality levels

High 92, Balanced 82, Small 68 and Tiny 50 for JPG and WebP.

PNG by resolution

PNG has no quality setting in a browser, so PNG is made smaller by reducing the pixels.

Size presets

Keep the original size, or cap it at 1920, 1280 or 800 pixels wide, or use 1280×720 or 1080×1080.

Batches

Up to 24 images with the same settings.

Private

The images stay in your browser and are not uploaded.

★Examples

A photo for a web page

A phone photo that is far too large for the page.

Example:

Cap it at 1920 pixels wide, save it as WebP at Balanced, and compare the sizes before you download.

A PNG screenshot

A large screenshot with text.

Example:

Keep PNG and use Light to reduce the pixels a little, or switch to WebP for a smaller file.

Mixed formats for a form

A form accepts only JPG.

Example:

Add the PNG and WebP files, choose JPG, and download them all.

♥Limits to know about

✓

Lossy formats lose detail

JPG and WebP at lower settings can blur fine edges and text. Look before you use the result.

✓

Animated GIFs become still

Only the first frame is used, so use another tool for animation.

✓

Metadata and colour profile are dropped

The output has no EXIF data and no embedded colour profile, so colours can shift slightly.

Frequently Asked Questions

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