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Curtains
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Free tools for sharing your screen

Small tools for the moments around a screen share: checking what people will see, and getting a screenshot ready to show.

Every tool runs in your browser. Nothing is uploaded.

  • Featured

    Webcam test

    See a live preview of your camera, check the resolution and frame rate, switch between cameras and watch your mic level. Nothing is uploaded.

  • Screen share test

    Preview what other people see when you share your screen, and spot what a full-screen share gives away before your next call.

  • Screenshot redactor

    Blur or black out names, emails and numbers in a screenshot, then download the redacted image or copy it to your clipboard.

  • Screenshot annotator

    Mark up a screenshot with a pen, highlighter, arrows and spotlight circles, then download it or copy it to your clipboard.

  • Window layout maker

    Combine two to six screenshots in a grid, focus or free layout on a Curtains theme background, and export one PNG.

Stop the screenshare dance

Your next call can start with the right windows already in the share.

Download for macOS