Scrinium
Notes only you can read.
Details
- External ID
- 1255692
- Source
- PH
- Company
- —
- Product
- Scrinium
- Website domain
- producthunt.com
- Launched
- Sept. 21, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Writing, Notes, Privacy
- Fetched at
- Sept. 23, 2026, 1:01 a.m.
- Updated at
- Sept. 23, 2026, 1:01 a.m.
Description
Encrypted zero-knowledge Markdown editor that logs in everywhere. Your notes are private on every device — the server cannot read them. Free, unlimited sync. Free tier covers daily use, Pro unlocks features like Burner Notes, Dead Man's Switch, and more to come. Built for developers, journalists, researchers, and anyone whose notes are nobody else's business.
Enrichment
- Theme
- markdown editors and writing tools
- Vertical
- Horizontal
- Function
- Communication
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- private encrypted note-taking app for individuals
- Manually corrected
- False
Could you build this?
Partial A rich Markdown editor and sync backend is easy to vibe code, but implementing a truly secure zero-knowledge cryptosystem (Argon2id, SRP-6a, and multi-tier authenticated encryption) requires specialized cryptographic engineering.
What it would actually take: A production version requires a robust web crypto architecture using WebCrypto or Libsodium, implementing Secure Remote Password (SRP) authentication to avoid handling plaintext secrets on servers, and managing client-side key derivation hierarchies (Argon2id to Master Key to Note Keys). Conflict-free encrypted data sync must also be implemented without leaking metadata or causing silent decryption failures across multi-device sessions.
Competitors
Other products that read as similar to this one — 107 launches clear the similarity bar, closest 8 shown.
Attention rank: #54 of 108 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 293 days after the earliest competitor.
- Paragraph Notes · ph · 2026-09-26 · 154 upvotes · similarity 0.53
- MinkNote · ph · 2026-07-24 · 157 upvotes · similarity 0.48
- The Note Jar · ph · 2026-09-14 · 2 upvotes · similarity 0.47
- inkwell - Write without distraction. · ph · 2026-09-14 · 3 upvotes · similarity 0.46
- Lyunotes · ph · 2026-09-30 · 1 upvotes · similarity 0.44
- Flotnote · ph · 2026-09-29 · 74 upvotes · similarity 0.44
- re:note · ph · 2026-09-24 · 2 upvotes · similarity 0.41
- AstraNote · ph · 2026-09-25 · 1 upvotes · similarity 0.41
Other launches for this product
- No other launches for this product.