Alternatives

Products that do what Cipher does

Max 5 tasks. 7-day expiry. Self-destructing to-do app

1. 1
   SSL Alerts▲157

   Free service to send SSL certificate expiration alerts

   2018

2. 2
   Meteor City▲12

   Share secrets that expire exactly when you want

   2025

3. 3
   Wormhole▲438

   Simple, fast, and private file sharing ✨

   2021

4. 4
   Cipher by Byterover▲341

   Open-source, shared memory for coding agents

   2025

5. 5
   Cloudflare Drop▲374

   Drop your folder in browser & deploy instantly on Cloudflare

   Jul 2026 · cloudflare.com

6. 6
   url.dev▲194

   Create short, temporary, self-destructing messages and links

   2020

7. 7TD
   Timelock.dev – Send a secret into the future using timelock encryption▲224

   This is simply a web interface built on top of the timelock encryption system posted by Cloudflare last week. https://blog.cloudflare.com/harnessing-office-chaos

   2024 · timelock.dev

8. 8AY
   Alert yourself after a long-running task in terminal▲86

   2021 · gist.github.com

9. 9
   Zombie Delete▲89

   Docusign for provable deletion - anywhere, everywhere.

   Apr 2026 · zombiedelete.com

10. 10
    OBLIVION▲2

    Encrypted self-destructing vaults. Like Snapchat for secrets

    May 2026 · vaultburn.xyz

11. 11UL
    Using Let's Encrypt, you should also use Expirify▲6

    2017 · expirify.com

12. 12
    ExpiryPing SSL Certificate Monitoring▲2

    SSL & domain expiry alerts for agencies. 5-min setup.

    Jun 2026 · expiryping.dev

13. 13NH
    Never have an SSL certificate expire again▲40

    2022 · haveibeenexpired.com

14. 14
    Deadly — Deadline tracking▲1

    Never miss a domain or SSL renewal again

    6d ago · dedly.co

15. 15
    Cipherkey.uz▲12

    Your data. Your control. Anywhere. Anytime

    2025

16. 16WA
    Write (almost) perfect encryption in an hour▲14

    2015 · github.com

17. 17
    DeadliQ▲12

    Never miss a deadline buried in a document again.

    2025

18. 18
    Expire Drop▲6

    Encrypted, self-destructing file & message sharing

    2025

19. 19
    Unseal▲13

    Time-locked secrets

    2025

20. 20EA
    Encrypt and Destroy – Send dead simple encrypted messages on the web▲11

    2016 · encrypt-and-destroy.herokuapp.com

21. 21TU
    Tip – use ctrl and w to rapid delete in terminal / shell▲11

    hours of life saved :)

    2015

22. 22
    CertWarden: SSL Expiry Tracker▲10

    Track SSL expiry before it breaks your site

    Feb 2026 · apps.apple.com

23. 23DM
    DebtBomb – Make TODOs expire and automatically create Jira tickets▲16

    Hi HN, In most codebases I’ve worked on, temporary hacks (“TODO: remove later”, “just for this release”) slowly become permanent. Nobody remembers why they exist, but they keep shipping to production. I built a small CLI called DebtBomb to make that explicit. Instead of free-form TODOs, you attach an expiry date to temporary code. When the date passes, CI fails until the code is removed or the expiry is intentionally extended. Recently I added integrations so expired debt bombs don’t just fail CI — they become visible and owned: When a debt bomb expires, DebtBomb can automatically create a…

    Jan 2026 · github.com

24. 24DO
    DailyNote – one-note-per-day app with local-first encryption▲5

    Hi HN and Happy New Year! I built DailyNote, a minimalist daily notes app: one note per day, a year-at-a-glance calendar, and local-first storage. The interesting bit is the encryption + sync model: - Notes are always encrypted locally before syncing to Supabase. - A dedicated data key (DEK) encrypts notes; your password only wraps that DEK (KEK). - So when you change your password, it just re-wraps the DEK — no re-encryption of note data. I built the whole project in one day using Claude + Codex with a spec‑driven approach (tight PRD → implementation). It’s React/TypeScript, IndexedDB…

    Jan 2026

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