Clipboard Test

A free, interactive check that copy, paste, and image-paste actually work in this browser. The clipboard is one of the first things to break in RDP and Citrix sessions and in locked-down managed browsers: the bridge between the remote session and your local machine gets disabled, or a policy blocks the Clipboard API, and users quietly lose copy and paste. This test copies a sample string, then has you paste text and an image back in, and tells you which direction of the clipboard bridge is broken.

Read the Clipboard Test guide for help reading the verdict or fixing a broken clipboard bridge.

Privacy: Everything runs in this browser tab. Whatever you paste is shown back to you as inert text (rendered with textContent, never as markup) and for an image only its type and size are reported - the pixels are never displayed or uploaded. Nothing leaves the machine. View source to verify.

Controls

Method: Copy sample, then paste back

Step 1 (copy) runs the moment you press Start, inside the click. Step 2 asks you to paste. Runs entirely client-side; no requests leave your browser, and nothing you paste is stored or uploaded.

Status Check Step

Pending

Copy to clipboard works

Writes a sample string to the clipboard with navigator.clipboard.writeText, falling back to execCommand('copy') if the async API is blocked.

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Pending

Paste captures text and images

Focus the paste box and press Ctrl+V (or Cmd+V). A paste listener reads text and any image item from the clipboard.

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