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Open Source Projects using Rolldown

A curated collection of the 7 best open source software using Rolldown. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Jan

AI
Run AI models locally or connect to cloud, privately

  • Stars

    45,476

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Jan runs open-source AI models on your own hardware or connects to cloud providers like OpenAI, Anthropic, and Google, keeping your conversations off third-party servers.

Open Source Alternative to:

Claude

Directus

Open-source data platform for effortless content management

  • Stars

    38,827

  • Last commit

    15 hours ago

  • License

    Unknown
A versatile headless CMS and API engine that simplifies data management, content creation, and application development.

Open Source Alternative to:

WordPress

Tuta

Secure email, calendar and contacts with end-to-end encryption

  • Stars

    8,118

  • Last commit

    5 hours ago

  • License

    GPL-3.0
Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Open Source Alternative to:

Gmail

Maple

OpenTelemetry observability with traces, logs, and metrics

  • Stars

    Stars growing over the last 30 days1,945

  • Last commit

    10 hours ago

  • License

    Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.

Open Source Alternative to:

DataDog

Cossistant

AI
AI-native support infrastructure for modern SaaS

  • Stars

    739

  • Last commit

    2 months ago

  • License

    AGPL-3.0
Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.

Open Source Alternative to:

Open

Elmo

AI
Self-hosted AI visibility tracking for your brand

  • Stars

    Stars growing quickly over the last 30 days568

  • Last commit

    5 hours ago

  • License

    MIT
Tracks how ChatGPT, Gemini, Claude, Perplexity, and other AI engines mention your brand, which competitors appear, and which sources get cited.

Open Source Alternative to:

Otterly.AI

OpenPolicy

Generate legal policies directly from TypeScript code

  • Stars

    165

  • Last commit

    22 hours ago

  • License

    Apache-2.0
Open-source policy-as-code framework that lets developers create privacy policies, terms of service, and legal agreements using TypeScript with built-in GDPR/CCPA compliance.

Open Source Alternative to:

iubenda
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