Catalogus

Automatically mute tabs whose hostname matches your saved list.

Save reusable text snippets with trigger shortcuts, search, folders, and one-click copy.

Add RSS/Atom feed URLs and read the latest items, fetched directly with no server.

Capture the visible tab as PNG with device-style preset filenames.

Generate UUID v4, ULID-like, and Nano-like identifiers in bulk with local history.

Simulate protanopia, deuteranopia, tritanopia, and achromatopsia on the active page.

Clean up text: trim, collapse spaces, dedupe, sort, and remove empty lines.

Estimate readability, sentence length, and passive-ish phrasing on selected or pasted text.

Block ads and trackers with local declarative rules. Chrome and Edge.

Turn articles into a focused, private reading view in Chrome and Edge.

Hover to inspect computed CSS, click to copy. Local only. Chrome and Edge.

Per-site page tint with brightness, contrast, and warmth. Local only. Chrome and Edge.

On-page developer tools: colors, SEO, ruler, cookies, and more. Chrome and Edge.

Block distracting websites with a private, local focus list for Chrome and Edge.

Inspect and copy typography details from any webpage with Type Peek for Chrome and Edge.

Stitch a full-page PNG capture safely, with size caps. Local only. Chrome and Edge.

Find, filter, and download page images locally in Chrome and Edge.

Boost HTML5 audio and video volume safely and locally in Chrome and Edge.

Plan your day with a calm, private new tab board for Chrome and Edge.

Custom CSS and hide elements per site. Local only. Chrome and Edge.

Compare webpages against reference images with a precise overlay for Chrome and Edge.

Expand private text shortcuts in any editable field with QuickType for Chrome and Edge.

Detect the technologies used by any page locally in Chrome and Edge.

Save and restore browser tab sessions locally. Chrome and Edge.