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ABOUT MASTER TOOL BOX

Small tools.
More room to create.

Master Tool Box helps you turn everyday images into something ready to share, without installing an editing app.

What you can make

Arrange two photos side by side, combine several images into a collage, divide a picture into grid tiles, or turn a sequence of still images into a GIF. You can also remove white areas connected to an image’s edges to create a transparent background.

Built for a clear workflow

Choose a tool, add your images, adjust the available settings and download the result. The merger supports 2, 4, 6 or 8 images and lets you choose an output size. PNG, JPEG and WebP exports suit different uses; the GIF maker produces an animated GIF.

Your images are processed in your browser

The editing tools use your device to process selected images. They do not send your image files to our server. Website visits are measured with Google Analytics, separately from image processing. Read our privacy notice for details.

Quality you can choose

PNG uses lossless compression, but resizing still changes the pixel dimensions of your image. JPEG and WebP exports may use lossy compression. GIF uses a limited color palette. Keep your original files and choose your format and output size to match your needs.

Help us improve

Found a download issue or have an idea for a tool? Send feedback with your browser, device and the steps that led to the issue.

Read the tool guide →