All extensions

Extract colors, fonts, spacing and CSS variables from the active page. Save local style guides and export CSS/JSON.

Style Weaver

Style Weaver: Apply custom CSS to websites.

SummitUp

Sum it up: select a passage for a sketch, or a term for a plain-English definition.

supapen

The AI copilot for CodePen.

SuperClaude

Artifact file manager, git-style diffs, prompt library, and token tracker for Claude

Superior Bookmarker

Superior Bookmarker will allow you to bookmark and manage your bookmarks. This is the most easiest bookmarker tool

Superpower Tab

Transform your new tab with stunning 3D animated backgrounds, customizable shortcuts, a beautiful clock, and floating sticky notes.

Surge Download Manager

High-performance download acceleration. Intercepts and routes browser downloads to Surge's multi-connection engine.

5.0

Sutra View

Sutra View

svg2css

Tool to generate a svg background string

SVG Color Swapper

Easily detect, change, and export SVG colors from any webpage.

SVG Snag

Snag all SVGs from any page. Preview, copy code, and download individually or as ZIP.

SVG to Image

Convert SVG files to PNG or JPG. Developer: Brand Zappy LLC (https://www.brandzappy.com). License: MIT.

Swatchly

Extract, save, and apply color palettes and fonts across any website. Built for web designers.

Swift A11y

Scan a page for accessibility problems and run fifteen testing tools, right beside it. Nothing leaves your browser.

SwiftCareID: Secure ID Generator (NHS Format)

Developer utility for generating synthetic medical identifiers (NHS format) for testing.

SwiftUtils - Free & Private Utilities

Instant access to 13+ free client-side utility tools. PDFs, image converters, calculators, and formatters with zero cloud uploads.

SwitchBack

Redirect requests by replacing a string in the URL (e.g. send website.com to localhost:2000).

Swub - Subdomain Switcher

Simple subdomain switcher extension for web developers. Quickly switch between development, staging, and production environments.

SynapseWeb — Semantic Browser Agent

Converts live web UI into an LLM-native semantic state protocol with an autonomous multi-tab tool-calling agent loop.

5.0

SyncBooking Automation

Sync bookings, check-in messages and city tax between Booking.com, Airbnb, VRBO and SyncBooking.

syncme

copy your logins for a site into a separate chrome that your ai agents and scripts can use

Syncmock

Intercept, inspect, and mock HTTP requests in your browser. Mock REST and GraphQL APIs without a proxy or backend changes.

Synthetic Data Generator

Generate synthetic data from prompts using local Ollama models.