πŸ–Ό Image & Media

Image Compressor

Shrink images with a JPEG or WebP quality setting β€” several at once, saved as a ZIP, compared against the original. Your images never leave your device.

Examples (click to try)

Drag & drop images

or click to choose files

JPEG, PNG, WebP and more β€” up to 20 at once. Paste a copied image with Ctrl+V (⌘+V on Mac). Images are processed on your device only and never uploaded.

Choose an image and the preview and compression result will appear here.

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Related articles

PDF to Image at 2x: Effective DPI and Measured File Sizes PDF rendering at 1x, 2x and 3x gives an effective 72, 144 and 216 DPI, but the exported image does not necessarily record that DPI. We measured file sizes for three PDFs by scale and format. How Far Can You Drop JPEG Quality? Measured Sizes by Quality and Format We re-encoded one photo at ten quality steps as JPEG, WebP and PNG in the browser and measured the real byte sizes. Why saving at quality 100 makes a file 2.3x larger, and the point where resizing beats quality.

How to Use the Image Compressor

Choose an image, then adjust the quality slider and output format to see the compressed image and the reduction right away. Watch the preview to find a good balance between how it looks and how small it gets.

  1. Drop images on the Drag & drop images box, or click it to choose. You can pick up to 20 at once, and paste a copied image with Ctrl+V (⌘+V on Mac) to add it.
  2. Move the Quality slider β€” lower values make smaller files (default is 80).
  3. Pick an Output Format, JPEG or WebP. WebP tends to be smaller for the web.
  4. Move the slider under the preview to compare the original (left) and the compressed image (right) in the same spot.
  5. When you're happy with it, press Download to save the file. With several images, Save all as ZIP saves them in one go, and each row's Save button saves one at a time.

Example: a roughly 2.4MB (4000Γ—3000) phone photo compressed to JPEG at quality 80 drops to about 480KB (around 80% smaller) while looking nearly identical. Lower the quality to 60 and it shrinks to about 300KB. Press πŸ–Ό Try a sample image above and move the slider to watch the size change as you go.

When This Comes in Handy

  • Shrinking photos for a blog or social post so pages load faster
  • Getting an attachment under an email or chat size limit
  • Lightening images across a product page or portfolio
  • Making a high-resolution phone photo smaller while keeping it looking close to the original

Frequently Asked Questions

Is the image I select sent to a server?
No. All compression happens entirely in your browser. The image you select is never transmitted to or stored on any server. You can use this tool with complete confidence.
Should I choose JPEG or WebP?
WebP usually produces smaller files than JPEG at the same quality, which makes it a good choice for the web. JPEG, on the other hand, opens reliably on older systems and in more apps. Pick whichever suits where the image will be used.
What happens to the image when I lower the quality?
Lowering the quality makes the file smaller, but fine details can start to show blur or noise. Watch the preview and find the lowest value that still looks acceptable. Around the default of 80 is a good starting point.