Free Online Image Compressor - Optimize & Reduce File Size
Impixa is the best free online image compressor that lets you reduce the file size of your photos by up to 90% without compromising visual quality. Whether you need to compress JPG, PNG, or WebP files for faster website loading, email attachments, or social media, our smart compression algorithms ensure the perfect balance between size and clarity.
Why Use Our Image Optimizer?
🚀 Boost Website Speed
Smaller images load faster. Improve your Core Web Vitals and SEO rankings by optimizing your images with our tool.
🔒 Secure & Private
All compression happens 100% in your browser using WebAssembly. Your photos never leave your device - nothing is uploaded.
✨ Smart Lossy Compression
We use advanced techniques to selectively decrease the number of colors in the image, requiring fewer bytes to store data. The effect is nearly invisible, but it makes a huge difference in file size!
📦 Batch Processing
Upload up to 20 images at once. Our tool processes them simultaneously to save you time.
How to Compress Images for Web
- Upload Your Photos: Drag and drop your images (JPG, PNG, WebP) onto the canvas or click "Upload".
- Select Quality: Use the slider to adjust the compression level. Lower quality = smaller file size.
- Compare Results: Use the before/after slider to check the quality.
- Download: Once satisfied, click "Compress" and then "Download" to save your optimized images.
Impixa vs. Other Compressors
| Feature | Impixa | TinyPNG | Compressor.io |
|---|---|---|---|
| Cost | 100% Free | Free / Paid | Free / Paid |
| File Size Limit | Unlimited* | 5 MB | 10 MB |
| Format Support | JPG, PNG, WebP, GIF | JPG, PNG, WebP | JPG, PNG, WebP, SVG |
| Watermark | None | None | None |
Frequently Asked Questions (FAQ)
How does image compression work?
Image compression works by minimizing the size of the image file without degrading the quality of the image to an unacceptable level. Our "lossy" compression removes some data that is not noticeable to the human eye, resulting in significantly smaller files.
Is it safe to compress my private photos here?
Absolutely. Impixa processes all images entirely in your browser using WebAssembly technology. Your images never leave your device - no uploads, no server storage. We cannot see or access your files.
What is the best format for web images?
WebP is generally the best format for the web today, offering superior compression compared to JPEG and PNG. However, JPEG is still great for photographs, and PNG is best for images requiring transparency.
Can I compress images on my phone?
Yes! Impixa is fully responsive and works perfectly on iPhone, Android, and tablets. You can compress photos directly from your mobile gallery.
How do I reduce image size to 50KB?
To reach a specific file size like 50KB, upload your image and lower the "Quality" slider until the "Compressed" size preview shows ~50KB. You may also need to resize the image dimensions if the original is very large.