All 205 Dependencies
Every package Langfuse depends on, ranked by repo health score.
Langfuse is an open source LLM engineering platform built for teams developing, monitoring, and debugging AI applications at scale. It provides end-to-end observability across complex, multi-step LLM workflows — capturing traces, spans, user sessions, and cost metrics — with zero-latency impact thanks to asynchronous ingestion and aggressive caching.
The platform unifies several critical workflows that teams otherwise stitch together from separate tools: tracing LLM calls and agent actions, versioning and deploying prompts collaboratively, running evaluations using LLM-as-a-judge or human labeling, and managing datasets for continuous benchmarking. All of these are integrated into a single system with shared context, enabling faster iteration cycles.
Langfuse integrates natively with major frameworks and SDKs including OpenAI, LangChain, LlamaIndex, LiteLLM, Vercel AI SDK, Mastra, Haystack, DSPy, and Instructor — with both automated and manual instrumentation options. It also supports OpenTelemetry as a standard ingestion path, making it compatible with any observability stack.
Deployment is flexible: teams can run Langfuse on a single machine with Docker Compose in under five minutes, scale to Kubernetes using the official Helm chart, or use managed Terraform templates for AWS, Azure, and GCP. The managed Langfuse Cloud option offers a generous free tier with no credit card required.
23
@lezer/highlight
^1.2.3
25
@codemirror/lang-json
^6.0.2
25
@codemirror/lang-python
^6.2.1
25
@codemirror/lint
^6.9.5
25
@codemirror/search
^6.7.0
26
@codemirror/language
^6.12.3
32
CodeMirror State
^6.6.0
33
lang-javascript
^6.2.5
34
@codemirror/autocomplete
^6.17.0
34
tailwindcss-animate
^1.0.7
37
fastest-levenshtein
^1.0.16
37
react18-json-view
^0.2.8-canary.6
40
react-responsive
^10.0.1
40
remark-gfm
^4.0.1
41
dotenv-cli
^7.4.4
outdated
42
ajv-formats
^3.0.1
42
clsx
^2.1.1
44
AWS SDK JS Crypto Helpers (SHA256 Browser)
^5.2.0
44
cmdk
^1.0.4
44
lossless-json
^4.1.1
45
cuid2
^2.2.2
outdated
45
next-themes
^0.4.6
47
tiktoken
^1.0.20
48
Vaul
^1.1.2
49
Tailwind CSS Forms
^0.5.11
49
prism-react-renderer
^2.4.1
49
safe-regex2
^5.0.0
50
@t3-oss/env-core
^0.11.1
outdated
50
cors
^2.8.6
50
tailwindcss-typography
^0.5.19
51
superjson
2.2.2
outdated
55
React-Resizable
^3.1.3
outdated
55
decimal.js
^10.4.3
58
bcrypt.js
^2.4.3
outdated
58
lru-cache
^11.2.7
60
Winston
^3.15.0
62
prettier-plugin-tailwindcss
^0.7.2
outdated
63
Ajv
^8.18.0
63
Sonner
^2.0.7
63
diff
^8.0.4
outdated
64
React Testing Library
^15.0.7
outdated
64
p-limit
^7.3.0
65
ipaddr.js
^2.2.0
65
jest-dom
^6.4.6
outdated
66
proxy-agent
^7.0.6
outdated
66
rate-limiter-flexible
^5.0.4
outdated
66
react-markdown
^10.1.0
67
Lodash
^4.18.1
67
dotenv-expand
^10.0.0
outdated
67
prisma-cli
^6.19.3
outdated
68
chroma.js
^3.1.2
68
eslint-config-prettier
^10.1.8
69
react-day-picker
^9.14.0
outdated
69
uuid
^14.0.0
71
dockerode
^4.0.9
outdated
71
helmet
^7.1.0
outdated
72
NextAuth.js
^1.0.7
outdated
72
NextAuth.js
^4.24.14
72
globals
^16.5.0
outdated
74
Radix UI
^1.2.12
74
Radix UI
^1.1.15
74
Radix UI
^1.1.11
74
Radix UI
^1.3.3
74
Radix UI
^1.1.12
74
Radix UI
^1.1.15
74
Radix UI
^2.1.16
outdated
74
Radix UI
^1.1.15
74
Radix UI
^2.1.8
outdated
74
Radix UI
^1.1.15
74
Radix UI
^1.1.8
74
Radix UI
^1.3.8
74
Radix UI
^1.2.10
74
Radix UI
^2.2.6
outdated
74
Radix UI
^1.1.8
74
Radix UI
^1.3.6
74
Radix UI
^1.2.4
74
Radix UI
^1.2.6
74
Radix UI
^1.1.13
74
Radix UI
^1.1.10
74
Radix UI
^1.1.11
74
Radix UI
^1.2.8
75
React CodeMirror
^4.23.7
75
React CodeMirror
^4.25.8
75
elkjs
^0.11.1
outdated
76
React Icons
5.5.0
outdated
76
TypeScript Native Preview
7.0.0-dev.20260122.3
76
vite-tsconfig-paths
^6.1.1
77
csv-parse
^5.6.0
outdated
78
Zustand
^5.0.14
78
date-fns
^3.6.0
outdated
78
dotenv
^16.6.1
outdated
79
MSW (Mock Service Worker)
^2.6.5
81
JSONPath
10.3.0
outdated
81
dnd-kit
^6.3.1
81
dnd-kit
^7.0.0
outdated
81
dnd-kit
^8.0.0
outdated
81
dnd-kit
^3.2.2
outdated
82
class-variance-authority
^0.7.1
82
eslint-plugin-tailwindcss
4.0.2
outdated
82
oci-common
^2.125.0
82
oci-common
^2.125.0
84
React Resizable Panels
^4.8.0
84
Streamdown
^2.5.0
85
@hookform/resolvers
^5.2.2
85
Express
^5.2.1
85
nanoid
^3.3.11
outdated
86
tailwind-merge
^3.5.0
88
tsx
^4.20.5
88
yaml
^2.9.0
89
DOMPurify
^3.4.11
89
jsdom
^26.1.0
outdated
90
@clickhouse/client
1.23.1
90
MCP TypeScript SDK
1.29.0
outdated
90
Mastra Core
1.21.1
outdated
90
Mastra Core
1.46.0
outdated
90
Mastra Core
1.8.1
outdated
90
Nodemailer
^9.0.3
outdated
90
React Email
^0.5.1
outdated
90
React Email
^1.2.1
outdated
90
Smithy Core (@smithy/core)
4.5.1
outdated
90
Tailwind CSS
^4.2.2
90
Tailwind CSS
^4.2.2
90
TanStack Virtual (React)
^3.13.12
90
react-grid-layout
^1.5.3
outdated
90
tRPC Server
^11.13.4
90
tRPC Server
^11.13.4
90
tRPC Server
^11.13.4
90
tRPC Server
^11.13.4
91
BullMQ
^5.76.3
outdated
91
Prisma Client
^6.19.3
outdated
91
Prisma Client
^6.19.3
outdated
91
Recharts
^3.8.0
91
TanStack Table
^8.20.5
outdated
91
core-js
^3.38.1
91
prettier
^3.8.3
91
react-dropzone
^14.4.1
outdated
92
AI SDK
^5.0.8
outdated
92
AI SDK
^4.0.5
outdated
92
AI SDK
^4.0.5
outdated
92
AI SDK
^4.0.6
outdated
92
AI SDK
^5.0.8
outdated
92
AI SDK
^4.0.0
outdated
92
AI SDK
^3.0.3
outdated
92
AI SDK
^7.0.0
92
Playwright
^1.57.0
92
React Hook Form
^7.72.0
92
TanStack Query
^5.85.1
92
Zod
^4.3.6
92
ioredis
^5.10.1
outdated
92
lucide-react
^0.552.0
outdated
92
undici
^7.28.0
outdated
93
@vitejs/plugin-react
^4.7.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^0.75.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^0.68.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^0.68.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^0.30.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^0.64.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^2.20.0
outdated
93
OpenTelemetry Auto-Instrumentations for Node.js
^0.8.11
outdated
93
Vitest
4.1.8
outdated
93
Vitest
^4.1.8
outdated
93
Vitest
^4.1.8
outdated
93
dd-trace
5.109.0
outdated
93
posthog-js
^1.390.2
93
posthog-js
^5.32.0
outdated
93
protobuf.js
7.6.5
outdated
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
AWS SDK for JavaScript (S3 Client)
catalog:
94
Stripe Node.js Library
^18.5.0
outdated
94
Vite
^7.3.5
outdated
94
typescript-eslint
^8.59.0
94
typescript-eslint
^8.59.0
94
typescript-eslint
^8.57.1
95
ESLint
^9.39.2
outdated
95
ESLint
^9.39.2
outdated
95
Sentry JavaScript (@sentry/browser)
^10.64.0
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
96
@slack/web-api
3.0.5
outdated
96
@slack/web-api
^7.15.0
outdated
96
Next.js
16.2.9
outdated
96
Next.js
16.2.9
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
>=1.0.0 <1.10.0
96
OpenTelemetry JavaScript (@opentelemetry/api)
^2.9.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^2.9.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^2.9.0
outdated
97
@azure/identity
^12.26.0
outdated
97
Google Cloud Storage
^7.19.0
outdated
97
Google Cloud Storage
^10.6.2
outdated
97
TypeScript
catalog:
98
React
19.2.4
outdated
98
React DOM
19.2.4
outdated
