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Clipboard Inspector

When you copy something, the clipboard usually holds several versions of it at once: plain text, formatted HTML, sometimes a link list, rich text or an image. Paste into this inspector to see every format your browser received, how large each one is and its full content, with HTML shown as source code so hidden markup, tracking links and invisible characters are easy to spot.

Input Testers Runs in your browser

Inspect Pasted Clipboard Data

Click here and paste (Ctrl+V or ⌘V)

The page only sees what you paste here. It never reads your clipboard on its own.

How to Use the Clipboard Inspector

  1. Copy something in any application (text from a web page, cells from a spreadsheet, an image).
  2. Click the paste area and press Ctrl+V (or ⌘V on a Mac).
  3. Read the list of formats and their sizes, then scroll through the contents of each one.
  4. Press Clear to remove everything from the page.

About This Tool

Developers debugging copy and paste, writers wondering why pasted text brings strange formatting, accessibility testers, and anyone curious about what really gets copied.

Input: Pasted clipboard content  ·  Output: Formats, sizes and contents.

Features and Limitations

Features

  • Lists every data type in the paste (text/plain, text/html, text/uri-list, text/rtf and others).
  • HTML shown as escaped source code, never rendered, so pasted markup cannot run.
  • Pasted files and images listed with name, type and size, with an image preview.
  • Counts characters and flags invisible or unusual characters such as zero-width spaces.

Limitations

  • Only data you paste is shown; the page does not read the clipboard by itself.
  • Browsers filter what they pass to web pages: some application-specific formats, and file paths, are never exposed.
  • Very large pastes are truncated in the display (the sizes remain exact).
  • Results are computed in your browser; nothing you enter is sent to a server.

Frequently Asked Questions

Can this page read my clipboard without me pasting?

No. It only listens for the paste event in the paste area, which happens when you press Ctrl+V or ⌘V there. It never calls the clipboard reading API.

Why does copied text include HTML?

Browsers, word processors and spreadsheets put a formatted HTML copy on the clipboard so that pasting into a rich editor keeps bold text, links and tables. Plain-text fields use the text/plain copy instead.

Why can I not see the file path of a copied file?

Browsers deliberately hide local paths from web pages. Only the file name, type and size are available.

Is the pasted content stored?

No. It stays in this page until you clear it or close the tab.

Related Tools

More like this: all Input Testers tools, all Browser Utilities tools or the TinySandy home page.