Free Image Compressor

Make an image file smaller. Choose your size and quality settings, then compare the result before you save it.

Free to use. No signup. No watermark. Your images stay in your browser.

Your image

No image selected.

Your preview will appear here.

Your image stays on this device. We do not upload it.

Image settings

Image settings

Clear areas use this color too. Animated images save as one still image.

Output limit: 4,096 px per side and 16 million pixels.

Choose an image to get started.

Use Mallary to share your next post.

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From this tool to your next post

Once the file fits, use Mallary to add it to a post and share it with your connected social accounts.

A smaller file still needs the right format and shape for each network. YouTube needs a video.

Change the image dimensions
  1. Download the copy that looks best.
  2. Add the file and your caption to Mallary.
  3. Choose your accounts, review the post, and publish or schedule it.

Trusted by creators, founders and developers

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Integrates with the tools you already use

Alex - Developer at Foundry Marketing
"I automated the posting on 5 different platforms in under 20 minutes. Highly recommend!"
Alex
Developer at Foundry Marketing
Sarah - Product at Crest Creative
"I was totally confused by the official TikTok API. Mallary made it simple. Using it every day."
Sarah
Product at Crest Creative
James - Founder at Ironline
"OAuth management is usually a nightmare. Mallary abstracted that away completely."
James
Founder at Ironline

Choose how to reduce your file size

Choose a setting here, then check your image in the editor.

Choose how to reduce your file size
SettingWhen to use it
A photo with lots of detail Try JPG first. Reduce quality a little at a time and check faces, hair, and fine edges.
A graphic with small text Try PNG to avoid lossy encoding. If it is too large, reduce the pixel dimensions or compare a JPG copy.
An image for a site that accepts WebP Compare WebP with JPG. Check that your upload site accepts the format before you save.
An upload with a 1 MB limit Set Maximum file size to 1,000 KB. Check both the final file size and the final dimensions.

This tool. The starting size keeps your original dimensions within the output limits: 4096 pixels per side and 16 million pixels in total. A file-size target may reduce them further.

Image quality. JPG and WebP can lose detail, even at 100% quality. PNG does not use the quality slider, and its file may be larger. Keep the original when the new copy is not an improvement.

See a real compression example

This illustrated example uses the same compressor as the tool above. Your file size and quality will depend on your own image.

PNG source to JPG. Starting size: 2400 x 1600 px. Starting file quality: 95%. Maximum file size: 500 KB. The tool may lower quality or dimensions to meet the limit. These numbers describe this illustration only.

Original landscape illustration with hills, a sun, a plant at the left edge, and the words A Fresh Perspective.
Original illustration2400 x 1600 px · 5,015,744 bytes
Compressed copy of the same textured landscape illustration.
After compression (500 KB limit)2102 x 1401 px · JPG · 491,443 bytes90.2% fewer bytes in this example, changing PNG to JPG. Final JPG quality: 82%. The image size changed to 2102 x 1401 px to meet the limit.

These are smaller previews of real exports from this tool. Sizes above describe the full files. Your result depends on your source image and settings.

A few things to know.

Try JPEG for photos. Try PNG for flat artwork or a graphic with small text.

Lower quality can reduce JPEG and WebP file sizes. Check fine text and edges before you save.

A file that is already well compressed may not get smaller. Compare the result with the original.

Output can be up to 4096 pixels on each side and 16 million pixels in total. Larger source images start at a reduced size.

Your questions, answered.

Can I compress an image without changing its dimensions?

Yes, when the original size fits the output limits. The tool keeps that size by default. Larger images start at a reduced size. Check the width and height before you save.

Why does the quality setting not make my PNG smaller?

PNG export does not use the same quality control as JPEG and WebP. Try another format or reduce the pixel dimensions if your PNG is too large.

Will the compressed image look exactly the same?

JPEG and WebP compression can remove detail. The result depends on your image and settings. Compare the preview and keep the original if you prefer it.

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