E2EE File Sharing Platform

People need a simple, secure way to share sensitive files without worrying about backend infrastructure or privacy breaches. An end-to-end encrypted file sharing tool that works from a single HTML file, requiring no server setup. Target users are individuals, small teams, and privacy-conscious users.

Zero-knowledge and E2EE tooling has genuine tailwind right now off the back of repeated cloud storage breaches and growing regulatory pressure around data handling, so the timing isn't contrived. The closest incumbent is Keybase (now stagnant post-Zoom acquisition) with Tresorit and Bitwarden Send covering adjacent ground, meaning the space has solutions but no dominant, beloved one. The $500–2k/mo revenue band is honest given that privacy-conscious users are notoriously resistant to paying, and a single-HTML-file distribution model makes upselling or gating features structurally awkward. The biggest risk is commoditization — Bitwarden Send already does ephemeral encrypted file sharing for free, and convincing users that a newer, smaller tool is more trustworthy than an established open-source one is a hard sell with no obvious lever to pull.