Free Image Compressor

What is Image Compressor?

Shrink image file size without visibly affecting quality. The compressor uses modern JPG and WebP encoders, with a live quality slider and a split-view preview so you can see exactly where the trade-off sits. Typical savings are 40-70% on JPG and 50-80% on WebP at "indistinguishable" quality. Great for cutting page-weight on websites, email attachments under size limits, and WhatsApp or Slack sharing.

How do I use Image Compressor?

1. Drop a JPG, PNG, or WEBP onto the upload zone.
2. Choose an output format; WebP gives the smallest files; JPG is the most compatible.
3. Drag the quality slider until the preview looks clean but the size has dropped.
4. Click Download to save the smaller image.

Image Compressor by the numbers

Encoders

mozJPEG, sharp-webp

Typical JPG savings

40 to 70%

Typical WebP savings

50 to 80%

Formats out

PNG, JPG, WebP

Max input

50 MB

Common use cases for Image Compressor

• Cutting hero-image page weight before deploying a Next.js site.
• Compressing wedding-photo exports before sharing a gallery link.
• Shrinking a marketplace product shot to fit a 1 MB upload cap.
• Preparing forum-safe screenshots that do not re-host through the forum.
• Batch-compressing an Instagram content pack before scheduling.

Common pitfalls and how to avoid them

• File got bigger after compression — Happens when the source was already near-optimal. Switch output format (JPG → WebP) or keep the original.
• Visible banding on gradients — Push quality up to 85% or switch to PNG-8/PNG-24 if the image has solid colours with few gradients.
• Transparency vanished — JPG cannot store transparency. Output to WebP or PNG if the original had an alpha channel.

When should I use Image Compressor?

Use Image Compressor when size matters more than dimensions. If you need a specific width and height, use Image Resizer instead. For many files at once, use Bulk Resize, which also re-encodes as it resizes.