nowfound

Life & fun · alternatives · 2026

24 alternatives to I forged the Lithuanian Vaccine Certificate and got it fixed

The story of how I was able to alter the data of the national vaccine certificate, to make it appear that an invalid certificate permits some exceptions for contact activities, making it possible to mislead certificate checkers. And then got it fixed.

This is a personal blog post documenting someone's experience forging a Lithuanian vaccine certificate and subsequently resolving the issue. The entry, categorized under life and fun, was published in May 2021. It… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I forged the Lithuanian Vaccine Certificate and got it fixed launched in 2021; newer entries below may have overtaken it.

  1. 1

    Redesign Your CoWIN vaccine certificate

    2021 · its alternatives →

  2. 2

    Platform-Agnostic Security Tokens. Contribute to paragonie/paseto development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  3. 3

    You can get a 2h free trial by solving a proof-of-work captcha when topping up your account for the first time. If you'd like to learn more, an independent interview was posted a couple of weeks ago [1], and the FAQ [2] has a lot of information as well. For the source code sharing, we've talked with lawyers and are inclined to no longer require the NDA/NCC for privacy reasons shared with us before (signing requires identification), but instead use a source-available permissive license that doesn't allow competition, like PolyForm Shield [3] (we do still have about 6 months before…

    Jun 2026 · uruky.com · its alternatives →

  4. 4
    VaxYes▲111

    Free, secure, verified, digital vaccine card

    2021 · vaxyes.com · its alternatives →

  5. 5

    Hello Hacker News community, We are excited to announce the launch of KIT.DOMAINS, our new tool designed to simplify the management and monitoring of domains. KIT DOMAINS is a convenient and reliable solution for tracking the status of your domains and SSL certificates. With KIT DOMAINS, you will receive timely notifications about expirations and emerging issues, ensuring your sites remain operational and secure. Key features: - Expiration Tracking: Monitor the expiration dates of your domains to prevent accidental lapses. - SSL Certificate Monitoring: Keep your SSL certificates up-to-date…

    2024 · kit.domains · its alternatives →

  6. 6

    Digitally prove and verify vaccination status

    2021 · hihello.com · its alternatives →

  7. 7

    Create and share beautiful certificates in 1 click for free

    2022 · certificates.graphy.com · its alternatives →

  8. 8

    Add SA & EU vaccination certificates to Apple Wallet 🇿🇦🇪🇺

    2021 · its alternatives →

  9. 9

    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.

    Jan 2026 · certificate.brendonmatos.com · its alternatives →

  10. 10TT
  11. 11

    Hello HN. I am excited to share with you my new book, Bulletproof TLS and PKI. I've worked in this space since the very early days (think SSLv2), always frustrated with the fact that the field is vast but the documentation poor. That first led me to create SSL Labs (which ended up being very popular) and then the first edition of my book (in 2014), where I aimed to cover everything a curious person needed to know about SSL/TLS and PKI. Most importantly, it's a very practical book that you can use to just learn what you need at that moment. The second edition (just out) adds coverage of…

    2022 · feistyduck.com · its alternatives →

  12. 12
    ArXivTok▲105

    I made this, and it's fully open source so if someone wants to contribute here you have the url: https://github.com/Miguel07Alm/arxivtok. For this project I was inspired by https://wikitok.vercel.app.

    2025 · arxivtok.vercel.app · its alternatives →

  13. 13

    The easy and efficient EU vaccination card checker

    2022 · its alternatives →

  14. 14

    Send verified certificates digitally

    2022 · givemycertificate.com · its alternatives →

  15. 15RC
  16. 16

    Simple access to US vaccination and herd immunity progress

    2021 · its alternatives →

  17. 17

    Get expiring Covid vaccines where they are needed

    2021 · its alternatives →

  18. 18

    Format, repair, convert, and visualize JSON, XML, YAML, CSV, and TOML. Free developer platform with advanced visualizers and AI-powered syntax repair.

    2020 · jsonmaster.com · its alternatives →

  19. 19

    Make employee vaccination drives easy & insightful

    2021 · dronahq.com · its alternatives →

  20. 20

    How does the french health pass work, and what are the privacy tradeoff involved ?

    2021 · sanipasse.fr · its alternatives →

  21. 21

    Your Covid vaccination management solution

    2021 · optimumhq.com · its alternatives →

  22. 22IM
  23. 23IR

    Back in 2012 I built https://cert-depot.com as a weekend project. Node.js + Express + jQuery, shelling out to OpenSSL for certificate generation. It worked but I eventually let it rot. https://news.ycombinator.com/item?id=4766743 Rewrote it from scratch in Go. The entire thing is a single binary with no external dependencies: 1. Certificate generation uses Go's crypto/x509 (no OpenSSL) 2. Certificates are generated in memory and streamed directly — nothing is stored on the server 3. RSA 2048/4096 and ECDSA P-256/P-384 4. Subject Alternative Names…

    Apr 2026 · its alternatives →

  24. 24UV

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →