Image Compressor

How do I reduce image file size without losing quality?

Use a quality setting of 70-80%. This typically reduces file size by 60-80% while keeping visual quality nearly identical to the original. The human eye cannot detect differences above 75% quality in most photos.

What is the best image format for websites?

WebP offers the best balance of quality and file size for websites. It is 25-35% smaller than JPEG at the same quality. For maximum compatibility, JPEG works on all browsers and devices.

How do I compress HEIC photos from iPhone?

Upload your HEIC files directly. They are automatically converted and compressed to your chosen format (JPEG, PNG, or WebP). HEIC is Apple's format that saves space but is not supported everywhere.

Why are my photos too large for email?

Camera photos are typically 3-8MB each. Email limits are usually 10-25MB total. Compress images to 70% quality to reduce each photo to under 1MB while maintaining good visual quality.

What quality setting should I use for Instagram?

Use 80% quality for Instagram. Instagram recompresses all uploads anyway, so uploading at maximum quality wastes bandwidth. 80% provides excellent visual quality at half the file size.

How do I compress multiple images at once?

Drag and drop multiple files or select them together. All images are processed in parallel. Download individually or as a single ZIP file containing all compressed images.

What is the difference between lossy and lossless compression?

Lossy compression (JPEG, WebP) discards some data to achieve smaller files. Lossless compression (PNG) keeps all data but produces larger files. For photos, lossy at 80%+ is visually identical.

Why does my compressed image look blurry?

The quality setting is too low. Increase it to 75-85% for photos. Text and sharp edges need higher quality (85%+) or PNG format. Compare before/after to find your ideal balance.

Can I compress images without an internet connection?

Yes. All processing happens locally in your browser. Once the page loads, you can compress images completely offline. No files are ever uploaded to any server.

How do I reduce image size for Google PageSpeed?

Convert images to WebP format and compress to 75-80% quality. This typically improves PageSpeed scores by 10-30 points. Also ensure images are sized appropriately for their display dimensions.