All extensions

Adds a "Copy import" button next to every class and function signature in the scikit-learn documentation.

Copy Relative URL

Right-click any link to copy just its path, query string, and anchor — no protocol or domain. By PSM Marketing.

Copy Without Locale

Copy the current page's URL to the clipboard, but remove locale segments

CORS DSB

Modify Access-Control-Allow-* response headers on any website to enable cross-origin (CORS) requests.

Cortia - Advanced Token Analysis

Intelligent AI-powered Solana token analysis and market insights with advanced features

Corvynel AI Companion

Connect your local code to AI chats, insert file bundles, review changes, and apply patches safely via the Corvynel desktop app.

Cowork Protocol Bridge

The Cowork Protocol bridge for pages without a panel: a bounded view for a WebMCP agent, with the click staying yours.

CPQB_N

Go_to_CP_QUICKBUILD

CP Submit - Codeforces & AtCoder

Write, test and submit Codeforces & AtCoder solutions from a side panel, through your own logged-in browser session.

CQwerty Shield

See the security grade for every website you visit. SSL, DMARC, and HTTP headers — one click.

crab-band

Pixel crabs that dance while Claude answers on claude.ai. Unofficial: not made or endorsed by Anthropic.

Crawlable: JS SEO Check

See whether Google can read your title, H1, canonical and robots without JavaScript. Compares server HTML with the rendered page.

Cringe Meter for LinkedIn

Rates LinkedIn posts from 0–100 with a clear label and rewrite suggestions. Works with your own API key or your server.

CRO Lens — Shopify Conversion Analyzer

Instantly detect conversion leaks and opportunities on any Shopify store.

CropCode

Turn any screenshot to code: convert complex UI captures into token-efficient JSON for AI code assistants to build faster.

CrumbJar

Offline cookie manager: view, edit, add, delete, and export cookies for the current site. No network access, no telemetry.

Crypto Validator

Crypto validator automatically checks if a coin is legit or has a big probability of being a scam.

CSS Creep

Click any element to inspect its CSS in a speech bubble, see its source and inheritance, and edit styles live.

CSS Element Picker

A Chrome extension for highlighting page elements on hover

CSS Inspector

Inspect CSS, selectors, animations, and layout in real time.

CSS px/vw/clamp 計算機

CSS実装時に必要な px / vw / rem / clamp / line-height / aspect-ratio / grid など、複数の単位計算を 1 つのパネルにまとめた開発支援ツールです。

CSV to CSS Converter

Convert CSV files to CSS styles

CtrlFreak

Keyboard navigation for the modern web.

CtrlVouch — SOC 1, SOC 2 & SOX Evidence

Capture SOC 1, SOC 2 & SOX audit screenshots via custom hotkey and bundle to ZIP, Local Drive, AWS S3, or Azure Blob Storage.