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

ShoutBox
Hashnode
Chatwing
Trace One PLM
Devlevate
Devodrome
deks
Community for developer to connect over fun rants about tech

Which is more popular?
Based on our record, Langfuse should be more popular than devRant. It has been mentioned 35 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | langfuse.com | devrant.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 devRant yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Langfuse in two minutes
No devRant videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Langfuse and devRant. 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 devRant 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 / 18 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 / 24 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 / about 1 month ago
Reminds me of https://devrant.com/, which had a decent sized community cca 2018 ++ was (is?) the icon to upvote. - Source: Hacker News / 8 days ago
Does he know about https://devrant.com ? Source: over 3 years ago
Sometimes it's because of ignorance and not knowing better, other times it's because there are cultural issues in the country as a whole, maybe a lot of people viewing development only as a step in the path to becoming a manager, instead... - Source: Hacker News / almost 4 years ago
When comparing Langfuse and devRant, you can also consider the following products.

Open-source LLM Observability for Developers
Compare Helicone AI to Langfuse or devRant:
The anonymous way for developers to rant and express their thoughts on anything
Compare ShoutBox to Langfuse or devRant:

Build and deploy LLM applications with confidence
Compare LangSmith to Langfuse or devRant:


Framework for building applications with LLMs through composability
Compare LangChain to Langfuse or devRant:

Chatwing provides solutions to embed chat on website, blog, app, platforms and any web page.
Compare Chatwing to Langfuse or devRant: