Image Optimizer
Batch-optimize photos and screenshots in your browser: shrink file size, convert format and resize in one pass. Images are processed locally and never uploaded.
- Re-encodes the image at a chosen quality and format, which also strips EXIF metadata, GPS tags and colour profiles - the pixels stay, the extras go.
- Resize first when the pixel dimensions matter more than quality: a 4000 px photo rarely needs to be bigger than 1600 px for the web.
- WebP is usually 25-35% smaller than JPEG at the same quality; PNG is only worth it for flat graphics with transparency.
- Animated GIFs are kept untouched in Auto and Keep modes so the animation survives; pick JPEG, WebP or PNG explicitly to convert the first frame.
- Nothing is sent anywhere - decoding, encoding and downloads all happen in this tab.
How to use Image Optimizer
Free online image optimizer. Compress and resize JPG, PNG and WebP photos in your browser with batch processing, quality control and exact file size targets - nothing is uploaded.
What is the Image Optimizer?
The Image Optimizer is a free online tool that helps you reduce file size while maintaining quality. It runs entirely in your browser, so your files never leave your device — perfect for privacy-sensitive work.
How to Use
- Upload your file — drag and drop or click to select the file you want to compress.
- Adjust settings — set your target size or quality level.
- Compress & download — get your compressed file in seconds.
Key Features
- 100% free — no hidden fees, no watermarks, no usage limits.
- Private & secure — processing happens locally in your browser when possible.
- Lightning fast — get results in seconds, not minutes.
- Works everywhere — compatible with desktop, tablet, and mobile browsers.
- No signup required — start using the tool immediately, no account needed.
Tips for Best Results
- Balance quality and file size — higher quality means larger files.
- For web use, aim for compressed sizes under 200KB.
- Test the compressed output before publishing.
Frequently Asked Questions
Is this tool really free?
Yes, the Image Optimizer is completely free to use with no hidden charges or premium tiers for basic usage.
Do I need to create an account?
No signup required. You can use the tool immediately without creating an account or providing any personal information.
Is my data safe?
Yes. Whenever possible, processing happens entirely in your browser, meaning your files and data never leave your device.
Frequently Asked Questions
What is the Image Optimizer?
The Image Optimizer is an free online tool that reduces file size while maintaining quality. It processes files directly in your browser for maximum privacy and speed.
Is the Image Optimizer free to use?
Yes, the Image Optimizer is completely free to use. There are no hidden fees, no premium tiers for basic usage, and no watermarks on your results.
How do I use the Image Optimizer?
Upload your file by dragging and dropping or clicking the upload area. Adjust quality settings if available, then click compress and download your optimized file.
Are my files safe and private?
Yes. Your files are processed entirely in your browser and never uploaded to a server. Your data stays private and secure at all times.
Does the Image Optimizer work on mobile?
Yes, the Image Optimizer works on all modern browsers including desktop, tablet, and mobile devices. No app installation is required — just open your browser and start using the tool.