
Langfuse
liteLLM
Portkey
LangSmith
OpenRouter
Eden AI
LangChain
Open-source LLM Observability for Developers
CodeUtil.dev
CodeLive Studio.cyou
SamToolkit
Free Dev Tools Studio
Livecode
Base64Encode.dev
CodePen
Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.

Which is more popular?
Based on our record, Helicone AI seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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CodeTray.dev
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| Website | helicone.ai | codetray.dev |
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What each product offers, as listed by its team.

No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Helicone AI and CodeTray.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Helicone takes the simplest possible approach to LLM monitoring: it's a proxy. Change your OpenAI base URL from api.openai.com to oai.helicone.ai, add your Helicone API key as a header, and every LLM request is logged — latency, tokens,... - Source: dev.to / 5 months ago
You're monitoring production traffic. You need Langfuse / Phoenix / Helicone / Braintrust for that. Online eval is a different problem class: implicit feedback, drift detection, hallucination rates on your data, not on HellaSwag. - Source: dev.to / 5 months ago
For many teams, especially those starting out or with simpler needs, commercial solutions like Portkey, Helicone, OpenPipe, or LiteLLM Proxy offer off-the-shelf capabilities that cover many common proxy use cases (caching, logging, cost... - Source: dev.to / 7 months ago
Tracking CodeTray.dev since Jun 2026.
When comparing Helicone AI and CodeTray.dev, you can also consider the following products.

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Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.
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Type code, see it run in about a second. Edit HTML, CSS and JS in your browser with autocomplete and instant live preview, then download or share your project. Free, no sign-up.
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Build production-grade & reliable AI apps with Portkey
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29 free browser-based developer tools — JWT, regex, cron, timestamp converters, CSS generators, security checkers, and content generators. No sign-up required.
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