
Violentmonkey
Greasemonkey
Tampermonkey
Greasy Fork
Database Script Tool
Script Manager – SManager
FireMonkey
An open-source userscript editor for Safari.

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, Userscripts seems to be more popular. It has been mentioned 14 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | github.com | diffyn.com |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Userscripts yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
5 Recommended Tampermonkey Userscripts in 2022
More videos
The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Userscripts and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Share your experience with using Userscripts and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


The looking icon is the Userscripts extensions. https://github.com/quoid/userscripts. - Source: Hacker News / 9 months ago
Hi, I'm Will. I'm 24, autistic, and have OCD tendencies. I'm learning to code and this is my first public project. I’d really appreciate your feedback and encouragement! This project lets me solve some of my OCD problems online. There... - Source: Hacker News / over 2 years ago
You can use userscripts [1] which is a safari extension which allows you to add userscripts, and the author of this work have an userscript [2] that you can use with safari (or any other browser) [1] https://github.com/quoid/userscripts. - Source: Hacker News / over 2 years ago
Tracking Diffyn since Jun 2025.
When comparing Userscripts and Diffyn, you can also consider the following products.

Violentmonkey is a userscript manager to support running userscripts in web pages.
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Customize the way a web page displays or behaves, by using small bits of JavaScript.
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Database Script Tool is an all-in-one functional code generator that allows you to generate several types of code, including SQL standard commands, classes, resource files, HTML 5 forms, Data managers, and more to add.
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Script Manager – SManager is an Android application that makes it easy for you to execute scripts and executables, file manager, multi-tab browser root explorer, and terminal emulator.
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