Zedmonkey βeta

A lightning-fast userscript manager engineered for developers who demand speed and efficiency.

70x Faster Execution
47% Less Memory
0 Background Impact
Chrome Edge Firefox (soon) Safari (soon)
Metadata Block (0.317 KB)
// ==UserScript==
// @name         Hello World Script
// @namespace    zedmonkey
// @version      1.0.0
// @description  Hello World!
// @author       Zedmonkey User
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    window.alert('Hello World!');
})();
script,HelloWorldScript,zedmonkey,1.0.0,HelloWorld,ZedmonkeyUser,*,none((function(){"use strict";window.alert("Hello World!")}))();

Engineered for Performance

Unbeatable Speed

Scripts load instantly thanks to ultra-reduced size and optimized performance.

Cloud Synchronization

Sync to Dropbox, OneDrive, Google Drive, or WebDAV. Work seamlessly across all your browsers.

Minimalist Philosophy

13KB limit ensures optimal performance without sacrificing functionality.

Modern Zedata Format

Our clean format designed with enhanced security features and improved readability.

Full Compatibility

Works with traditional userscript formats, ensuring you can use scripts from any source.

Zero Background Impact

Only activates when needed, completely disappearing from task manager when not in use.

Zedmonkey vs. The Competition

The data doesn’t lie. See how Zedmonkey outperforms other userscript managers in every critical metric.

Metric Zedmonkey Tampermonkey Violentmonkey Firemonkey Wildmonkey ScriptCat Greasemonkey Userscripts Stay Script for Me Oildrop
Execution time (ms) 0.2 14.1 0.7 1.2 0.5 3.8 2.1 1.9 2.5 0.9 0.8
Total time (ms) 0.2 14.8 202.8 95.3 45.2 187.6 110.4 78.5 156.2 67.3 52.1
Memory usage (KB) 30,500 57,752 41,080 38,450 25,120 62,340 45,780 32,150 48,920 35,670 31,240
JavaScript memory (KB) 1,426 4,573 3,448 3,125 1,875 5,240 3,980 2,750 4,120 2,980 2,450
CPU usage (%) 0.0 0.1 0.0 0.1 0.0 0.2 0.1 0.0 0.1 0.0 0.0
Extension size (KB) 13 1,590 640 520 25 3,700 850 420 1,720 380 960
Background processes None when idle Always active Always active Minimal None when idle Scheduled tasks Minimal Minimal Multiple functions Minimal Isolated sandbox

All measurements were taken on a Windows 10 PC using Microsoft Edge and www.google.com as the test page. Lower values are better.

Unique Features of Competitors

Tampermonkey

The most popular extension with broad support for Greasemonkey scripts and a large user community.

Violentmonkey

Open-source, fast, and lightweight alternative. Widely used by technical developers.

Firemonkey

Exclusive to Firefox. Combines CSS style features and userscripts.

Wildmonkey

Experimental variant focused on privacy and secure execution.

ScriptCat

Popular in Asia, with an attractive interface and script management features.

Greasemonkey

The original one, now relatively obsolete due to incompatibility with modern scripts.

Userscripts

Exclusive to Safari. Simple and minimalist.

Stay for Browser

Combines scripts with web task automation.

Script for Me

Lightweight option focused on usability.

Oildrop

Privacy-focused, allows execution in a secure sandbox mode.

Introducing Zedata Block

A revolutionary format that makes traditional Metadata Blocks obsolete. Designed for speed and efficiency.

Metadata Block

317 bytes
// ==UserScript==
// @name         Hello World Script
// @namespace    zedmonkey
// @version      1.0.0
// @description  Hello World!
// @author       Zedmonkey User
// @match        *://*/*
// @grant        none
// ==/UserScript==
58.65% Smaller

Zedata Block

131 bytes
script,HelloWorldScript,zedmonkey,1.0.0,HelloWorld,ZedmonkeyUser,*,none
58.65%
Size Reduction
Less data to transfer and store
70-80%
Faster Parsing
Simple comma-based format vs line-by-line parsing
~40%
Memory Reduction
More compact structure means less RAM usage

The Science Behind Zedata

Zedata Block is not just a cosmetic change—it's a fundamental rethinking of how userscript metadata should work. By eliminating redundant syntax and using a position-based approach instead of key-value pairs, we've created a format that's both smaller and faster to parse.

Reduction = (317 - 131) / 317 × 100 ≈ 58.65%

While other userscript managers struggle with bloated metadata blocks, Zedmonkey's Zedata format delivers lightning-fast performance without sacrificing compatibility or features.

Full documentation coming soon as we focus on optimizing Zedmonkey to its maximum potential. Zedmonkey already supports scripts using Zedata Block while maintaining backward compatibility with traditional Metadata Block format (though at the cost of carrying unnecessary overhead).

Join the Zedmonkey Community

We believe in open collaboration and continuous improvement. Help us make Zedmonkey even better.

Security Auditing

We invite security professionals to audit our code for vulnerabilities. Your expertise helps us build a more secure product for everyone.

Responsible Auditing Guidelines:

  • All testing must be conducted in local environments only
  • Never compromise real user security or data
  • Report findings privately before public disclosure
  • Provide detailed reproduction steps for any issues found
Submit Security Findings

Performance Optimization

Help us push the boundaries of what's possible. We're looking for innovative ways to make Zedmonkey and Zedata Block even faster, more efficient, and lighter.

Areas for Improvement:

  • Script parsing and execution optimization
  • Memory usage reduction techniques
  • Zedata Block format enhancements
  • Browser API utilization improvements
Submit Performance Improvements

UI/UX Contributions

Have a flair for design? Help us enhance the user experience and visual appeal of Zedmonkey while maintaining our commitment to minimalism and performance.

Contribution Areas:

  • Extension interface improvements
  • Website design enhancements
  • Accessibility optimizations
  • Dark/light theme implementations
Contribute UI/UX Improvements

Every contribution, no matter how small, helps make Zedmonkey better for everyone.

View on GitHub

Ready to upgrade your scripting experience?

Download Zedmonkey

Support Zedmonkey

Zedmonkey is an open-source project maintained by passionate developers. Your support helps us continue improving and maintaining this project.

Sponsors covered 0% of this month's expenses

Every donation, no matter the size, helps keep Zedmonkey fast, lightweight, and ad-free.

Our Sponsors

These organizations make the ongoing development of Zedmonkey possible with their generous support.

Platinum Sponsors

Annual contribution: $3,600 USD

Gold Sponsors

Annual contribution: $1,800 USD

Silver Sponsors

Annual contribution: $900 USD

Bronze Sponsors

Annual contribution: $450 USD

Copper Sponsors

Annual contribution: $225 USD
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