# Custom JS & CSS for Safari

> Run JS, CSS & userscripts

Canonical page: [https://chrome-stats.com/d/id6776793703](https://chrome-stats.com/d/id6776793703)

## Overview

- **ID:** `id6776793703`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Alfredo Grassau
- **Category:** Developer Tools
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.6
- **Last updated:** 2026-08-07
- **First published:** 2026-06-08
- **Size:** 10 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/custom-js-css-for-safari/id6776793703)
- **Website:** [https://www.safariwebextensions.com](https://www.safariwebextensions.com/)
- **Privacy policy:** [https://drive.google.com/file/d/1NdSwuH3u92uxIK1rxMd\_T1svC1xVvTYq](https://drive.google.com/file/d/1NdSwuH3u92uxIK1rxMd_T1svC1xVvTYq)

## Description

Custom JS & CSS for Safari lets you run JavaScript, apply CSS, manage userscripts, and sync customizations across devices.

Custom JS & CSS for Safari is a powerful Safari Extension that lets you personalize the web with your own JavaScript, CSS, and userscripts. Create site-specific enhancements, visual tweaks, automations, and custom browsing tools directly in Safari.

Features:

· Add Custom JavaScript: Run your own JavaScript on any website directly in Safari.

· Add Custom CSS: Style websites with your own CSS rules and visual tweaks.

· Site-Specific Rules: Apply scripts and styles to a single domain, exact URL, all websites, or custom match patterns.

· Run Scripts Manually or Automatically: Choose whether each script runs on its own or only when you activate it.

· Userscript Manager: Import, organize, and run userscripts from popular userscript libraries like Greasy Fork.

· Popup and Custom Editor: Add or edit scripts directly from the extension popup or in a dedicated custom editor.

· iCloud Sync: Keep your scripts and styles synced across iPhone, iPad, and Mac using iCloud.

· Privacy-first design: No data collection, tracking, or logging, your browsing stays completely private.

· Multilingual support: Use the extension in multiple languages for a globally friendly experience.

· Clean, user-friendly UI: Enjoy a streamlined design that integrates smoothly into your workflow.

· Seamless Safari integration: Built to work flawlessly across Safari on macOS, iOS, and iPadOS.

## Rankings

- #880,776 — Overall

## Similar extensions and apps

- [Userscripts](https://chrome-stats.com/d/id1463298887) — 4.30 / 5
- [My Styles: Custom Website Look](https://chrome-stats.com/d/id6766115872)
- [Run Custom JS on Background](https://chrome-stats.com/d/id6755627440) — 4.00 / 5
- [Addons - Scripts & Adblock](https://chrome-stats.com/d/id6446811843) — 4.60 / 5
- [CSS Inspector for Safari](https://chrome-stats.com/d/id6469319815) — 5.00 / 5
- [JavaScript Blocker for Safari](https://chrome-stats.com/d/id6761494791) — 5.00 / 5
- [JavaScript Prettify for Safari](https://chrome-stats.com/d/id6790031259)
- [Edit HTTP Headers for Safari](https://chrome-stats.com/d/id6770717276) — 5.00 / 5
- [No JavaScript: Safari Blocker](https://chrome-stats.com/d/id6747416930)
- [Stay for Safari](https://chrome-stats.com/d/id1591620171) — 4.70 / 5
- [Cown Zoo](https://chrome-stats.com/d/id1596457459) — 2.00 / 5
- [Fonts: Customize Web Fonts](https://chrome-stats.com/d/id6762355936)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6776793703)