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Open Source

1. Open Wearables

Open-source, self-hosted health intelligence platform that unifies data from 200+ wearables into a single API. Built to democratize access to wearable data infrastructure that's typically locked behind enterprise contracts - deploy with docker-compose, own your data, no per-user fees.

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2. HiCyou

Hi Cyou is a curated directory platform that helps users discover SaaS tools for building, learning, and creating. Key features include:Hand-picked Tools: A selection of over 294 tools, updated daily.Free Submission: SaaS products can be submitted for free.Dofollow Backlinks: Products listed receive dofollow backlinks.Ideal for:SaaS founders looking for exposureDevelopers seeking useful toolsMarketers searching for new software solutionsHi Cyou offers a free, open-source platform for SaaS discovery, making it accessible for both product creators and users.

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3. SendPortal

SendPortal is an open-source email marketing software that allows users to manage newsletters and email campaigns. Key features include:Self-Hosting: Maintain complete control over your data by hosting SendPortal on your own server.Subscriber Management: Import, update, and segment subscribers via API or CSV upload.Campaign Management: Create and send campaigns to targeted segments with custom templates.Powerful API: Integrate SendPortal with other applications using a flexible REST API.Ideal for:Small businesses looking for cost-effective email marketing solutionsDevelopers who need a customizable email marketing platformOrganizations that require full control over their data and infrastructureSendPortal offers a significant cost advantage compared to commercial email marketing platforms like MailChimp and Campaign Monitor, while providing the flexibility and control of an open-source solution.

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4. Lemmy

Lemmy is a self-hosted social link aggregation and discussion platform for the fediverse. Key features include:Federated Communities: Join and participate in communities across different Lemmy instances.Open Source: Completely free and open, ensuring transparency and community-driven development.Content Organization: Easily subscribe to topics of interest and filter out unwanted content.Voting System: Bring the most interesting and relevant content to the forefront through community voting.No Tracking or Advertising: Enjoy a privacy-focused experience without intrusive ads or data tracking.Ideal for:Users seeking decentralized social media alternatives.Communities wanting to host their own discussion platforms.Developers interested in contributing to open-source projects.Lemmy offers a unique value proposition by providing a federated, open-source, and privacy-respecting alternative to centralized social media platforms.

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5. Repo Radar

Repo Radar is a Mac menu bar app that helps developers track their favorite GitHub repositories. Key features include:Repository Watching: Add repositories by URL or owner/repo to monitor.At-a-Glance Updates: See the latest release, star count, and activity directly from the menu bar.Smart Notifications: Get alerted when new releases are published.Ideal for:Developers who want to stay updated on open-source tools.Project maintainers monitoring their own repositories.Anyone who wants to track GitHub activity without browser clutter.Repo Radar provides a lightweight and native Mac experience, built with Swift, for fast and efficient GitHub monitoring.

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6. Trust Vault

Trust Vault is a secure data storage and transfer solution that allows users to create encrypted containers, distribute access easily, and securely transfer data without risk. Key features include:Secure Storage: Encrypt data using AES-256 for maximum security.Multi-Access Control: Utilize Shamir's Secret Sharing for flexible access management.Open Source: Benefit from a transparent and community-driven security solution.Passwordless Access: Securely access your data without traditional passwords.Ideal for:Teams working with sensitive informationProfessionals handling confidential dataFamilies sharing important documentsTrust Vault offers a unique combination of strong encryption, flexible access control, and an open-source approach, providing a secure and trustworthy alternative to traditional cloud storage solutions.

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7. Sita

Sita cuts AI spend by 30% and saves 25 hours per developer each month by automating search and documentation. It turns code, messages, and docs into a knowledge graph and feeds only relevant context to your coding tools, cutting input tokens by 32%. Sita also keeps your docs up to date and helps ship features 37% faster with 68% fewer bugs. We onboard you with white-glove support in one hour. Sita works with or without your current tools and can power them through MCP or our own agent.

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8. Rybbit

Rybbit is a privacy-first web analytics platform that allows you to track website performance without compromising user privacy. Key features include:Real-time Analytics: See your site performance as it happens with instant data updates and live visitor activity.Session Replay: Watch real user sessions to understand their behavior and identify pain points.Web Vitals Monitoring: Monitor Core Web Vitals and performance metrics to ensure a great user experience.Ideal for:Website owners concerned about user privacyDevelopers seeking an open-source analytics solutionBusinesses looking for a Google Analytics alternativeRybbit offers a cookieless approach to web analytics, ensuring user privacy while providing valuable insights into website performance. The first 10,000 events/month are free.

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9. Vaanee Ai

Vaanee AI is a cutting-edge generative voice AI platform dedicated to bridging global language barriers through advanced AI-driven voice synthesis. Leveraging proprietary technology such as the Diffusion Model and a custom vocoder, Vaanee AI offers a powerful toolkit for creating realistic, human-like voiceovers with dynamic pitch, tone, and emotion. The platform is designed to serve diverse sectors, including entertainment, e-learning, and marketing, and aims to democratise content accessibility by providing multilingual support with a focus on Indian and global languages.

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10. AI Song Generator Free Online

AI Song Generator is an easy-to-use platform that creates high-quality, royalty-free music in various styles, perfect for videos, ads, and creative projects.

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