Clipboard History Viewer - Online See Last Copies

This tool monitors copy events on the page using JavaScript's document.addEventListener('copy'). When you select text and press Ctrl+C (or ⌘+C on Mac) anywhere on this page, the copied content is automatically captured and stored in your browser's localStorage. Additionally, the "Read Clipboard" button uses the Clipboard API to read your system clipboard's current content. All data stays on your device — nothing is sent to any server.

Partially. Web browsers cannot access your full system clipboard history due to security restrictions. However, when you click "Read Clipboard", the browser can read the current clipboard content (requires HTTPS and user permission). To build a comprehensive history, keep this page open while you work — any text you copy within this page will be automatically logged. For full system-wide clipboard history, you would need a native desktop application.

Yes, completely safe. All clipboard history is stored exclusively in your browser's localStorage — a client-side storage mechanism. The data never leaves your device, is never transmitted over the network, and is not accessible by any server. You can clear the history at any time using the "Clear All" button, or by clearing your browser's site data. We recommend clearing sensitive clipboard data regularly.

The tool automatically classifies copied content into categories: Plain Text, URL/Link, Email Address, and Code Snippet. Classification is based on pattern matching — URLs are detected by common protocols (https://, http://), emails by the user@domain pattern, and code by the presence of programming syntax characters.

The tool stores up to 100 clipboard entries. When the limit is reached, the oldest entries are automatically removed to make room for new ones. You can export your entire history as a JSON file by clicking the "Export" button — this is useful for backup or analysis. The JSON file includes timestamps, content types, character/word counts, and the full text of each entry.

The Clipboard API requires explicit user permission for security reasons — without it, malicious websites could silently read sensitive data from your clipboard. When you click "Read Clipboard" for the first time, your browser will show a permission prompt. If you deny it, the tool will still work by capturing copy events within the page. You can manage clipboard permissions in your browser settings.

Clipboard history refers to a record of text you've previously copied. It's incredibly useful when you accidentally overwrite your clipboard, need to reuse something you copied earlier, or want to track information snippets during research. Developers, writers, and data entry professionals often rely on clipboard managers to boost productivity. This online tool provides a lightweight, privacy-focused alternative to system-level clipboard managers.

This tool works on all modern browsers including Chrome 66+, Firefox 63+, Safari 13.1+, and Edge 79+. The "Read Clipboard" feature requires HTTPS or localhost due to the Clipboard API's security policy. Copy event monitoring works on any connection. For the best experience, use an up-to-date browser and grant clipboard read permission when prompted.