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Dev tools · April 15, 2026

OpenPolotno

Open-source Polotno alternative for design editors

What it does

OpenPolotno is an open-source design editor compatible with Polotno templates and APIs. It allows developers to build Canva-like tools with full control, no vendor lock-in, and complete customization.

Does the same job

all alternatives →
  • Polotno Studio2021 · ▲190

    Canva-like design editor. No signups, no ads, no paywalls.

  • Polotno SDK2021 · ▲96

    Toolkit to create web design editors

  • OS
    Open Source Canva Clone2022 · github.com · ▲232
  • OS
  • OO
    OpenKnowledge – open source AI-first alternative to Obsidian/NotionJun 2026 · github.com · ▲381

    Hi HN, Nick here. We’re launching OpenKnowledge (https://openknowledge.ai/), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and other agents. Available as MacOS app or Web UI+CLI. Fully free/local and OSS. We built this because we wanted a Notion-like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true WYSWIG UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes…

  • Templated2024 · ▲311

    Embed a Canva-like editor to your app

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