Image Compressor — Reduce JPEG, PNG & WebP Size Free Online
Compress JPEG, PNG, and WebP images instantly in your browser — private, free, no upload needed.
Drop images here or browse files
JPEG · PNG · WebP · GIF — max 30 MB each
How to Compress Images Online — Free & Private
This tool reduces image file sizes by re-encoding them at your chosen quality using your browser's built-in Canvas API. No image is ever uploaded to a server — everything runs locally on your device.
JPEG vs WebP
- 📷JPEG — maximum compatibility. Works in every app, browser, and social platform.
- 🌐WebP — 25–35% smaller at equal quality. Best choice for websites and web performance.
Related tools
Need to change format rather than just compress? The Image Converter handles JPEG, PNG, and WebP in either direction. For iPhone HEIC photos, the HEIC Converter converts to JPEG or PNG first. To enlarge a small image, the Image Upscaler scales up 2×–4× using Lanczos resampling.
Common use cases
- ⚡Speed up websites — large images are the #1 cause of slow page loads
- 📧Shrink email attachments to stay under file-size limits
- 📱Prepare images for social media uploads
- 💾Free up storage on your device or cloud drive
Frequently asked
Is my data private? Yes — 100%. Compression runs entirely in your browser via the HTML5 Canvas API. Your images never leave your device.
What quality setting should I use? 75–85% is ideal for web images. Below 60% you'll notice visible artifacts. For email attachments, 60–70% is usually fine.
Can I compress PNG files? Yes — this tool converts them to JPEG or WebP, which typically achieves 60–80% size reduction. Note: PNG transparency becomes a white background in JPEG output.
Why didn't my file get smaller? Already-compressed JPEGs at high quality may not reduce much further. Try lowering the quality slider or switching to WebP.
Frequently Asked Questions
Is the Image Compressor free?
Yes — completely free. No account, no subscription, and no watermarks on compressed images.
Are my images uploaded to a server?
No. Compression runs entirely in your browser using the HTML5 Canvas API. Your images never leave your device.
Do I need an account?
No account, no login, and no signup required.
What image formats are supported?
JPEG, PNG, WebP, and GIF as input. Output is JPEG or WebP.
Will compression make my image look worse?
At quality 80–85%, loss is nearly invisible on typical screens. Use the side-by-side preview to find the lowest quality setting where you cannot see a difference.
Can I compress multiple images at once?
Yes. Drag and drop multiple images and download them individually or all at once.