Smart Image Compressor
Reduce photo sizes locally in your browser without sacrificing quality.
Controls the maximum target output file size. Lower size implies stronger compression.
Maximum resolution for the scaled bounding box while keeping aspect ratio.
How to use the Image Compressor
- 1
Upload an image
Drag and drop a JPG, PNG or WebP file into the box, or click browse to choose one from your device.
- 2
Set your target
Use the sliders to pick a maximum file size and maximum width/height. Lower values mean stronger compression.
- 3
Compress & download
Click “Start Optimization”, review the before/after sizes, then download your smaller image.
About the Image Compressor
Large images slow down websites, use up storage, and get rejected by upload forms with size limits. Compressing an image reduces its file size — often by 60–90% — while keeping it looking sharp, so it loads faster and fits anywhere.
This compressor lets you set an exact target size in megabytes and a maximum resolution. It then resizes and re-encodes the image with the browser-image-compression engine directly on your device, using a Web Worker so your page stays responsive.
Because everything runs locally, your images are never uploaded to a server. It works on JPG, PNG and WebP files and is ideal for speeding up websites, shrinking email attachments, and preparing photos for social media.
Precise control
Target an exact file size and maximum dimensions with simple sliders.
Live comparison
See original vs. compressed size and the exact percentage saved before downloading.
Private & free
Images are compressed in your browser — nothing is uploaded, and there are no limits.
Frequently Asked Questions
How do I compress an image without losing quality?
Set a reasonable target size and keep the maximum dimensions close to how the image will actually be displayed. The tool reduces file size while preserving visual quality; small compression usually has no noticeable effect.
Which image formats can I compress?
You can compress JPG/JPEG, PNG and WebP images. The compressed output keeps the same format so it stays fully compatible.
Are my images uploaded anywhere?
No. Compression happens entirely in your browser using a Web Worker. Your images never leave your device and are not stored on any server.
How small can I make my image?
You can target sizes as low as 0.1 MB. The final size depends on the image content and the maximum dimensions you allow, but strong compression can shrink most photos dramatically.
Is the image compressor free to use?
Yes, it is completely free with no sign-up, no watermarks and no limit on how many images you compress.