
Helicone AI
LangSmith
LangChain
Portkey
Braintrust.dev
PromptLayer
Humanloop
Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.

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

Which is more popular?
Based on our record, Langfuse should be more popular than Userscripts. It has been mentioned 35 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | langfuse.com | github.com |
| Pricing | — | |
| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data....
No description of Userscripts yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Langfuse in two minutes
5 Recommended Tampermonkey Userscripts in 2022
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Langfuse and Userscripts. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Ten free AI prompt tools in 2026 across four categories: prompt generators (SurePrompts, Anthropic Console, OpenAI Playground), libraries (AIPRM, PromptHero, FlowGPT, Awesome ChatGPT Prompts), open-source workflow...
We have no reviews of Userscripts yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Langfuse is an open-source LLM engineering platform specialized for AI applications. It provides:. - Source: dev.to / 13 days ago
Langfuse is an open-source observability and analytics platform for LLM applications. Its open-source nature is a significant draw for companies that prefer to self-host or want to avoid vendor lock-in. - Source: dev.to / 19 days ago
We have researched and experimented with several AI evaluation platforms, including Arize Phoenix, Microsoft Foundry, and Langfuse. After evaluating them against our requirements and roadmap, we shortlisted Microsoft Foundry and Langfuse... - Source: dev.to / 28 days ago
The looking icon is the Userscripts extensions. https://github.com/quoid/userscripts. - Source: Hacker News / 10 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
When comparing Langfuse and Userscripts, you can also consider the following products.

Open-source LLM Observability for Developers
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Build and deploy LLM applications with confidence
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Customize the way a web page displays or behaves, by using small bits of JavaScript.
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Framework for building applications with LLMs through composability
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Greasemonkey compatible script manager.
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