What is the Image Overlay Tool?
This is a free online tool that allows you to layer two images and adjust their opacity (transparency) to merge them into a single file. Since all processing is done locally within your browser, your images are never uploaded to a server, ensuring 100% privacy and security.
Key Use Cases
- Insert Watermarks: Place a logo over a photo and lower its opacity for a professional look.
- Design Comparison: Layer "before" and "after" images to spot subtle differences.
- Double Exposure Art: Blend two scenic photos to create a dreamy, artistic effect.
- Data Verification: Overlay two charts or maps to check for discrepancies.
How to Use
- Click on the upload boxes to select your "Background (Image 1)" and "Overlay (Image 2)".
- Once the images appear, use the sliders to fine-tune the transparency of each layer.
- Click the "Merge & Save Image" button to download the result as a PNG file.
Frequently Asked Questions (FAQ)
A. The "Background" (Image 1) is placed at the bottom, and the "Overlay" (Image 2) is placed on top. The top image can be adjusted to let the bottom one show through.
A. Yes, you can freely adjust the transparency from 0% to 100% using the sliders. This is ideal for adding subtle watermarks to your work.
A. Yes! If you upload a PNG with a transparent background (like a logo), it will overlay perfectly on top of your background image.
A. We aim to maintain the highest quality possible. The tool renders the images at high resolution using the browser's Canvas API and saves them in PNG format to avoid degradation.
A. Absolutely not. Like all HaruTools Lab utilities, everything happens in your browser. Your private photos stay on your device.
A. Yes, the tool is fully compatible with iOS and Android browsers. You can intuitively adjust layouts and transparency on your smartphone.