Hey Product Hunt! I built CloakShare because every secure document sharing tool (DocSend, Papermark, PandaDoc) is either GUI-only or charges per seat. I wanted something I could call from code. One POST request, one secure link back. That's it. What makes CloakShare different: API-first. No dashboard required. Upload, share, track, revoke, all via REST API. Video support. MP4/MOV/WebM files get transcoded to adaptive HLS streaming with 720p and 1080p quality tiers. Watermarked with a canvas overlay so screenshots are traceable. Dynamic watermarks. Every page shows the viewer's email, date, and session ID. If a screenshot leaks, you know exactly who shared it. Page-level analytics. Not just "someone opened it" but which pages they read, how long they spent, and whether they came back. Self-hostable. MIT licensed. Run it on your own servers with Docker if you want full data control. Per-account pricing, not per-seat. Your whole team uses one account. Free tier includes 50 links/month. The embeddable viewer is also available as an npm package. Drop a web component into your app and get watermarks, email gates, and view tracking with zero backend work. I'd love to hear what you think. Happy to answer any questions about the architecture or use cases.

CloakShare

Secure documents & video with one API call

Secure documents & video with one API call