HithaBadikillaya
@HithaBadikillaya
Maintainers
January 15, 2026 | Documentation Completed

Papertrail

A self-hosted, privacy-first documentation platform for generating meeting minutes, captions, and letters from audio or video content.

Next.js Express.js Node.js Python Whisper FFmpeg Docker documentation privacy self-hosted local-first student-tools open-source
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Papertrail

Papertrail

Papertrail is a tool that helps you turn audio, video, and notes into professional documents. You can use it to create social media captions, formal letters, and meeting summaries quickly and easily.

The project is designed to be private and straightforward, working directly in your browser without requiring you to create an account or store your data permanently.

Upload recordings from meetings, podcasts, or spoken content and convert them into clean, usable documentation without relying on third-party cloud storage.

Key Features

  • Meeting Minutes (MoM) – Automatically generate clean, structured meeting notes
  • Caption Generation – Create captions for Instagram, X (Twitter), LinkedIn, YouTube descriptions, and WhatsApp promotions with multiple tone options
  • Letter Generation – Generate formal letters, invitations, sponsorship requests, and follow-ups using customizable templates
  • Template-Based Workflow – Use predefined or custom templates to maintain consistent yet flexible outputs
  • Privacy-First Design – Files are processed temporarily and deleted automatically after completion
  • Self-Hostable – Fully deployable on local or private infrastructure with no vendor lock-in
  • User-Friendly Workflow – Simple upload → process → edit → export flow with progress indicators for long files

Tech Stack

Papertrail is built using web and AI tooling:

  • Next.js – Frontend framework for a fast and responsive UI
  • Tailwind CSS – Utility-first styling for clean and consistent design
  • Node.js & Express – Backend API and orchestration logic
  • Python Worker – Handles heavy AI processing tasks
  • Whisper – Audio transcription engine
  • LLM APIs – Intelligent content generation
  • FFmpeg – Audio extraction, preprocessing, and trimming

Project Goals

  • Simplify documentation from spoken content
  • Enable privacy-first, local-first AI workflows
  • Reduce manual effort in meetings and content creation
  • Provide an open-source base for experimentation and customization

Open Source & Community

Papertrail is an open-source project developed under the Sahyadri Open Source Community (SOSC).
We welcome contributors, learners, and open-source enthusiasts to explore and improve the project.

Contributing

Contributions are welcome.

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