Image Compressor

Batch

Compress images by adjusting JPEG quality with a live slider. See the size reduction before downloading.

Large images are the most common cause of slow websites, bloated emails, and storage overages. This compressor lets you adjust JPEG quality with a live slider and shows the resulting size before you download. Batch mode handles multiple images at once and packages them into a ZIP. Compression runs entirely on your device.

Large hero images are the fastest way to ruin a Core Web Vitals score, because the browser cannot paint above-the-fold content until the image finishes loading. Compressing a photo to a JPEG quality around 75-80 keeps the visual difference subtle while cutting file size dramatically, and a compressed asset makes a real difference to load time on a slower connection. Batch mode lets you process a whole set of product or blog images at once, and compressing locally means you never wait on an upload before the work starts.

Email servers routinely reject or bounce attachments over a few megabytes, and a phone camera photo can exceed that limit on its own. Compress the image until it lands safely under the limit, using the live preview to confirm the quality is acceptable, then attach the smaller file instead of fighting with a compressed archive. This also covers forms and portals that enforce size caps, and attaching multiple photos, where running each through the batch pipeline keeps the total message size sane. Everything stays on your device.

  1. 01Upload
  2. 02Configure
  3. 03Run
  4. 04Download

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How to use

How to use Image Compressor

  1. 1Drop an image onto the upload zone or click to browse for one.
  2. 2Drag the quality slider and watch the preview update live.
  3. 3Compare the size before and after compression.
  4. 4Download the compressed image to your device.

FAQ

Frequently asked questions

Everything you need to know about image compressor.

What quality setting should I use?

70-80% is a good balance for photos. Lower values shrink the file more but introduce visible compression artifacts.

Does compression preserve EXIF data?

No. Re-encoding drops all metadata, which is actually a privacy bonus, but camera info and GPS data are lost in the output.

Can I compress many images at once?

Yes. Batch mode compresses multiple files, shows per-file savings in a table, and offers a ZIP download of everything at once.

Is there a size limit?

Images are downscaled to a maximum dimension of 3000 pixels before compression, keeping very large photos fast to process.

Why is my result sometimes larger than the original?

JPEG re-encoding can grow files that were already well compressed, such as low-quality JPEGs. Check the reported savings before downloading.

Are my images uploaded?

No. Compression runs locally on a canvas element, so your files never leave your device for any step of the process.

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