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OpenTelemetry

Top Open Source Projects Built With OpenTelemetry in 2026

A curated collection of the 58 best free and open-source projects built using OpenTelemetry. Discover popular repositories, architecture patterns, and trending software in 2026.

  • Zitadel

    Open-source identity infrastructure for developers

    Stars
    14,870
    Last commit
    10d ago
    License
    AGPL-3.0

  • Usertour

    Open-source user onboarding platform

    Stars
    2,292
    Last commit
    10d ago
    License
    Open Source

  • Instant

    Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.

    Stars
    10,493
    Last commit
    12d ago
    License
    Apache-2.0

  • Hexclave

    Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.

    Stars
    6,841
    Last commit
    11d ago
    License
    Open Source

  • Flowglad

    Unified workspace for cross-system automations

    Stars
    1,718
    Last commit
    3mo ago
    License
    Open Source

  • VerifyWise

    Complete AI governance and LLM evaluation platform

    Stars
    341
    Last commit
    10d ago
    License
    Open Source

  • Uptrace

    OpenTelemetry-native observability platform

    Stars
    4,270
    Last commit
    2mo ago
    License
    AGPL-3.0

  • UnInbox

    Collaborative email for teams to get work done

    Stars
    1,757
    Last commit
    6mo ago
    License
    Open Source

  • Trigger

    Open source platform for AI workflows in TypeScript

    Stars
    16,137
    Last commit
    10d ago
    License
    Apache-2.0

  • Teable

    AI-powered spreadsheet for custom business apps

    Stars
    21,721
    Last commit
    1mo ago
    License
    Open Source

  • Steel

    Open-source browser API designed for AI agents. Run headless browsers with built-in CAPTCHA solving, proxy support, and session management. Quick setup in under 1s.

    Stars
    7,547
    Last commit
    12d ago
    License
    Apache-2.0

  • Sayr

    Transparent project management with public collaboration

    Stars
    20
    Last commit
    14d ago
    License
    Open Source

  • Rocket.Chat

    Secure team chat with voice, video & AI

    Stars
    46,033
    Last commit
    11d ago
    License
    Open Source

  • Puter

    All-in-one cloud desktop for work and play

    Stars
    43,275
    Last commit
    10d ago
    License
    AGPL-3.0

  • PostHog

    Self-driving product analytics platform

    Stars
    39,294
    Last commit
    10d ago
    License
    Open Source
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Showing 15 of 58 open-source tools