Image Compressor
Reduce image file sizes with quality and dimension controls — 100% client-side.
Compression Settings
Lower = smaller file, higher = better quality
Downscales image if width or height exceeds this
Original
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Compressed
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How to Compress an Image
- Upload your image using the dropzone or file picker.
- Adjust the quality slider — lower values produce smaller files.
- Optionally select an output format or set a maximum dimension.
- Click Compress Image to process it in your browser.
- Review the size savings and download the compressed file.
Your images are never uploaded to a server. All compression happens locally.
What is Image Compression?
Image compression reduces file size by removing redundant data or applying encoding algorithms. Webkitters Image Compressor lets you compress JPG, PNG, and WebP images in your browser — choosing a quality level to balance file size against visual quality.
Smaller images load faster on websites, use less storage, and are easier to share via email or messaging apps.
Lossy vs Lossless Compression
Lossy (JPG, WebP)
Permanently removes some image data to achieve higher compression. A quality setting of 75–85% typically gives a good balance between size and appearance.
Lossless (PNG)
Compresses without removing any data — the image is pixel-perfect after decompression. Smaller savings but no quality loss.
When to Compress Images
- Before uploading to a website or blog to improve page speed
- Before attaching to emails with size limits
- Before uploading to social media platforms
- To reduce storage space on your device
- To meet upload size requirements on platforms and apps
FAQ
Is my image uploaded to a server?
No. Compression runs entirely in your browser. Your image never leaves your device.
What quality setting should I use?
For web images, 70–80% is usually ideal. For photography or print use, 85–90% preserves more detail.
What formats can I compress?
The tool supports JPG, PNG, and WebP images.
How much can file size be reduced?
It depends on the original image. JPG images can often be reduced by 40–70% with minimal visible quality loss.
Can I compress multiple images at once?
Currently, the tool processes one image at a time for simplicity and speed.