Report updated Apr 11, 2026

Userscripts is a well-regarded developer tools app that is completely free. With a 4.4/5 rating from 172 reviews, it maintains solid user satisfaction. Users particularly appreciate utility and functionality, though script persistence issues remains a common concern.

What Is Userscripts?

Userscripts is an open-source Safari extension for iOS and macOS that enables users to run custom JavaScript and CSS on websites. It targets power users and developers, positioning itself as a privacy-first, non-commercial alternative to mainstream script managers. Its primary differentiator is its complete lack of user tracking and its open-source transparency, which has fostered a loyal, high-trust user base. Despite its technical utility, it faces stiff competition from commercial rivals like Stay, which offer more polished interfaces and integrated script discovery features.

Current Momentum

v1.8.6 · 3mo ago

Maintenance

Userscripts recently optimized memory usage and resolved iOS crash issues in version 1.8.6. The app is currently in maintenance mode with no recent major feature updates.

AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

STAY: Are you there?

STAY: Are you there?

By Plug In Digital

Other Rivals

Tampermonkey
Inspect Browser
AdGuard VPN: Fast Secure Proxy
Web Inspector

7-Day Rank Pulse 🇺🇸

#26
5

Main Category

Developer ToolsFree
AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Recent User Mood 🇺🇸

Excited
Excited
Utility and Functionality
Script Persistence Issues

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Custom Script InjectionStandard

Allows users to save and run arbitrary JavaScript and CSS code for specific websites

Privacy-First DesignDifferentiator

Open source architecture with no user tracking or data collection

Remote Script SupportDifferentiator

Ability to add and automatically update remotely hosted userscripts via metadata tags

Cross-Device SyncStandard

Supports syncing scripts between macOS and iOS via iCloud folders

Built-in Code EditorStandard

Integrated editor with features like auto-hint, linting, and syntax highlighting for macOS

Who is it for & how much does it cost?

Target Audience

Power users, web developers, and privacy-conscious individuals who want to customize their web browsing experience on Safari.

Pricing

Free
  • Completely free and open source

The app is distributed as a free, open-source tool with no monetization, relying on community contributions and positive App Store reviews for support.

Who Built It?

Developer Tools

Enrichment in progress

Publisher profile available very soon

What other apps does Justin Wasack make?

What do users think recently?

High confidence · 172 reviews analyzed

What is the recent mood?

Excited
Excited

Recent user voice shows a excited sentiment. Users appreciate utility and functionality and open source and free, but report script persistence issues and installation and setup difficulty.

What Users Love

Utility and Functionality

Allows me to run custom scripts, I can now fix accessibility issues on various sites

Supercharges the Safari browser to do all that and more

Open Source and Free

Probably the only app on the App Store that isn’t made by a scummy person

It's open source, and has no bells or whistles. To the point.

What Frustrates Users

Script Persistence Issues

After a few days or so the scripts automatically turn off

My userscripts won't stay loaded, I have to keep opening the app to reload them

Installation and Setup Difficulty

App is stuck on the informational screen telling me to go into settings

In neither app does this app recognize the scripts i'm trying to install

What is the competitive landscape for Userscripts?

How's The Developer Tools Market?

How does it evolve in the Developer Tools market?

ChartRankChange
Free#261

Developer Tools Market Trend

Developer Tools market trend & dynamics

Available very soon

The rivals identified

The Nemesis

Head to Head

Stay currently holds the market edge due to its superior script discovery and polished UI, but Userscripts remains the preferred choice for privacy purists and developers who demand an open-source, non-commercial tool.

What sets Userscripts apart

  • +

    Completely free and open-source with no monetization or 'Pro' tiers

  • +

    Privacy-first architecture with zero user tracking or data collection

What's STAY: Are you there?'s Edge

  • -

    Significantly higher rating count (~1.7k vs 172) indicating broader market adoption

  • -

    Built-in 'Stay Fork' community for sharing and downloading scripts directly

Contenders

Peers

New Kids on the Block

-

Focuses on real-time debugging and inspection rather than persistent script management

-

Modern, native iOS interface designed for quick edits

The outtake for Userscripts

SWOT Analysis

Core Strengths

  • Open-source transparency and high user trust
  • Completely free with no monetization or 'Pro' tiers
  • Privacy-first architecture with zero data collection
  • Cross-device synchronization via iCloud

Critical Frictions

  • Script persistence bugs where scripts stop running automatically
  • High friction in initial setup and script installation
  • Lack of a built-in script discovery/gallery interface
  • Limited mobile editor capabilities compared to desktop

Growth Levers

  • Integrate a curated, privacy-vetted script gallery to compete with Stay
  • Improve onboarding flow to reduce 'stuck' users
  • Market specifically to privacy-conscious users fleeing commercial extensions

Market Threats

  • Stay's superior script discovery and community features
  • Tampermonkey's dominant brand recognition and API support
  • Potential Safari API changes affecting background script execution

What are the next best moves?

high

Resolve script persistence and background execution bugs.

This is the #1 complaint theme ('scripts automatically turn off') and a primary driver of negative sentiment and potential churn.

medium

Redesign the onboarding and setup flow.

Users report being 'stuck on the informational screen,' indicating a UX barrier that prevents successful first-time use.

medium

Implement a basic script discovery or 'Import from URL' gallery.

This addresses a major feature gap compared to the nemesis, Stay, which features an integrated 'Stay Fork' community for script sharing.

Feature Gaps vs Competitors

  • Integrated script search and discovery (available in Stay)
  • Advanced visual editor with mobile optimization (available in Stay and Web Inspector)
  • Wider range of Greasemonkey/Tampermonkey API support (available in Stay and Tampermonkey)

Key Takeaways

Userscripts is the gold standard for privacy-conscious developers, but it is currently losing the 'ease-of-use' battle to Stay. While its open-source nature is a massive strength, the PM must prioritize fixing script persistence bugs and reducing onboarding friction to prevent power users from migrating to more reliable commercial alternatives.

Where Is It Heading?

Stable

v1.8.6 (Jan 2026) added memory optimization and iOS stability — active maintenance on core performance.

Rankings show a slight decline (↓1) in the Developer Tools category, suggesting increased competition.

User sentiment remains 'Positive' despite persistent technical complaints regarding script loading.

Independent intel to help builders create better apps.

No publisher influence. No third-party bias. Built with objectivity in mind to serve the builder community.

Hope this helps & keep building! · Found an error?

What's new in this report

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Cite this report

Marlvel.ai. “Userscripts Intelligence Report.” Updated Apr 11, 2026. https://marlvel.ai/intel-report/developer-tools/com-userscripts-macos

Agent Markdown (.md)·

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