Quick answer: Open the official Web Markups listing, choose Add to Chrome, confirm the installation, then open a normal http:// or https:// webpage and select the Web Markups toolbar icon. Click the floating pencil to start annotating.
1. Install the official extension
- Open the Web Markups listing linked above.
- Confirm that the listing name is Web Markups and the extension ID ends in
chlofcfppgoknojcemfaepjhnnbeackj. - Choose Add to Chrome, then approve Chrome's installation prompt.
- Wait for Chrome to confirm that the extension was added.
Install only from the official Chrome Web Store listing. Do not install copied packages or follow instructions that ask for a password, verification code, or API key.
2. Pin Web Markups to the toolbar
- Select Chrome's Extensions button near the address bar.
- Find Web Markups in the extensions list.
- Select the pin control so the Web Markups icon stays visible.
Pinning is optional. It makes activation easier but does not change the extension's permissions or site access.
3. Open Web Markups on a webpage
- Visit a regular webpage that begins with
https://orhttp://. - Select the Web Markups extension icon.
- Click the floating pencil launcher that appears on the page.
- Choose a drawing tool, or use the camera controls for a local screenshot or browser-tab recording.
4. Check Chrome site access
If the toolbar does not appear, open Chrome's extension management page, select Web Markups, and review Site access. Chrome's labels can vary by version, but Web Markups must be allowed on the page you are trying to annotate. Reload the webpage after changing access.
Grant access only through Chrome's own extension settings. Web Markups does not ask you to paste passwords, cookies, tokens, or webpage data into a setup form.
Where Web Markups cannot run
Chrome settings and extension pages
Chrome prevents extensions from modifying protected pages such as chrome://settings and chrome://extensions.
The Chrome Web Store
Chrome blocks ordinary extension content scripts on the Store itself. Test Web Markups on another webpage after installation.
Pages restricted by an organization
A managed browser or workplace policy can limit extension installation or site access. Contact the browser administrator when Chrome reports that the extension is managed or blocked.
What installation does and does not do
- Free drawing and local capture do not require a Web Markups account.
- Installing or connecting an account does not automatically upload media.
- Annotations remain local and are not synchronized through the account.
- Captures happen only after a user starts a screenshot or recording action.