The best alternatives to Sharecode are VisualCode, Edge QR, and Visualead. If these 3 options don't work for you, we've listed a few more alternatives below.
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Bytecrowds is an open-source, real-time platform that allows you to share and enforce authorization for code snippets.
Adopting the serverless architecture and its own, privacy-respecting analytics engine, it offers a reliable and secure way to quickly obtain sharable links of your code.
Create qr code for your website, name or something else and download it by just one click. The website works offline using PWA technology. Project is open source.