Liner. The Real Ruler Chrome Extension Analysis

Listing positioning

Liner positions itself as a lightweight utility for web developers to ensure pixel-perfect design. It mimics Photoshop-style visual guidelines for web pages, allowing users to create, color-code, and manage alignment guides directly in the browser.

Inferred product pattern

Legacy browser utility that has not been updated to maintain compatibility with modern browser APIs.

Review-backed pain points

Users frequently report that the extension fails to activate upon installation, remains non-functional after browser restarts, or experiences performance issues where guides become unresponsive or impossible to move.

Observed feature gaps

The extension lacks ongoing maintenance for compatibility with newer Chrome versions, leading to core functionality breakage reported by users over multiple years.

Support

Users express frustration regarding the complete lack of functionality, with some attempting self-troubleshooting steps like checking permissions to no avail.

Reliability

High incidence of reports stating the tool simply does not work or has stopped working after browser updates.

Privacy

No privacy-related complaints observed.