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Langfuse vs Papermark

Langfuse offers observability for LLM apps, unrelated to document management.
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️‍♂️PapermarkThe Open-Source DocSend Alternative

Side by side

What it is
Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
Papermark:Papermark is an open-source platform for secure document sharing and data rooms with real-time analytics.
Best for
Langfuse:LLM observability & analytics
Papermark:Secure, analytics-enabled data rooms
Who it’s for
Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
Papermark:Dealmakers, founders, finance teams and investors who need confidential document workflows.
Pricing
Langfuse:Freemium
Papermark:Freemium
Plans
Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
Papermark:Free €0/month · Pro €24/month per month · Business €59/month per month · Data Rooms €99/month per month
Open source
Langfuse:Yes, 35,097 GitHub stars
Papermark:Yes, 9,217 GitHub stars
Works with
Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
Papermark:SSO, API, CLI, Webhooks
DevHunt upvotes
Langfuse:89
Papermark:23
Launched on DevHunt
Langfuse:Jan 2023
Papermark:Jan 2023

Langfuse features

  • Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
  • Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
  • Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
  • Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
  • Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
  • Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
  • Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
  • Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
Langfuse on DevHunt →Alternatives

Papermark features

  • Page-by-page analytics. Shows view duration, completion and real-time engagement per document page.
  • Granular permissions. Control access with SSO, email verification, allow/block lists and file-level rights.
  • Custom branding & domains. Remove Papermark branding, add logos, custom colors and custom domains for documents and data rooms.
  • Dynamic watermark & NDA gating. Apply watermarks and require NDA acceptance before viewing documents.
  • Unlimited visitors & data rooms. No limits on the number of visitors or data rooms per plan.
  • API, CLI & webhooks. Integrate Papermark into workflows via REST API, command-line tools and webhook notifications.
  • Enterprise-grade security. ISO 27001, SOC 2 Type II, GDPR, HIPAA, CCPA compliance with end-to-end encryption.
  • Self-hosted option. Deploy Papermark on your own infrastructure for full control.
Papermark on DevHunt →Alternatives

Based on each tool's website and DevHunt data. Details may change; check the official sites.