Open-source certificate from GitHub activity
I built this as a small side project to learn and experiment, and I ended up with this! I used a subdomain from my personal portfolio, and everything else runs on free tiers. The project uses Nuxt, SVG, Cloudflare Workers, D1 (SQL), KV, Terraform, and some agentic coding with OpenAI Codex and Claude Code. What started as a joke among friends turned into a fun excuse to build something end to end, from zero to production, and to explore a few things I’d never touched before. I’d really appreciate any feedback or suggestions.
Open-source certificate from GitHub activity launched on January 18, 2026 with 43 votes, #578 of 14,584 launches that month and more than 95% of that year's launches.
In plain words
This tool generates certificates based on GitHub activity, created as a learning project to explore full-stack development. Built with Nuxt, Cloudflare Workers, and D1 database, it runs entirely on free tiers from a personal portfolio subdomain. The project demonstrates end-to-end implementation using modern development tools including agentic coding assistance, designed for developers who want to visualize their GitHub contributions in certificate form.
written from the facts on this page · September 2026
From the sources
Generate a personalized contribution certificate from your GitHub activity to share online or print.
Enter your GitHub username to generate a personalized contribution certificate you can share online or print forfrom certificate.brendonmatos.com
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