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Alternatives

Products that do what Meteor City does

Share secrets that expire exactly when you want

  1. 1
    Hush94

    Share secrets safely in Slack

    2020

  2. 2
    Once75

    Share private infomation away from email and chat.

    2020

  3. 3TD

    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

  4. 4

    Encrypted, self-destructing file & message sharing

    2025

  5. 5

    Share one-off secrets with end-to-end encryption 🤫

    2021

  6. 6

    A simple, secure and free to use tool for sharing secrets

    2017

  7. 7

    secure file and message sharing with expiry link

    2025

  8. 8

    Share Secrets With Zero Trace. Zero Accounts. Zero Worry.

    2025

  9. 9SB

    Stasher is a tiny CLI tool that lets you share encrypted secrets that burn after reading — no accounts, no logins, no servers to trust. I built it because I just wanted to share a password. Not spin up infra. Not register for some "secure" web app. Not trust Slack threads. Just send a secret. Secrets are encrypted client-side with AES-256-GCM. You get a `uuid:key` token to share. Once someone reads it, it's gone. If they don't read it in 10 minutes, it expires and deleted. Everything is verifiable. Every release is signed, SLSA-attested, SBOM-included, and logged in the Rekor transparency…

    2025 · github.com

  10. 10SI
  11. 11UL
  12. 12

    Send files securely without leaving your Slack channel!

    2020

  13. 13IP

    Hey HN! I made a service to share passwords easy and secure but never promoted it. It's called instapass.io I noticed that people besides my friends and clients actually started to use, so maybe it will be helpful for you too! You share one-time self-destruct message using one time links and I won't even be able to see what you wrote. How does it work? When you generate a message the client-side makes a random password and use that to encrypt the message. The password is appended as an anchor tag which all modern browsers never send to the server. This way, I don't even know what you shared.…

    2019

  14. 14

    Lock memories until a date or place. No early unlocks

    Dec 2025 · apps.apple.com

  15. 15
    Fliko7

    Share sensitive files. Leave no copies behind.

    Jun 2026 · fliko.in

  16. 16
    Freeze6

    Free onetimesecret alternative | share secrets securely

    Oct 2025

  17. 17

    Cryptographically enforced time-locked vaults for secrets

    Dec 2025 · timeseal.online

  18. 18

    Share secrets one time password

    May 2026 · vaultsends.com

  19. 19
    Cipher3

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

    Feb 2026 · sir-ad.github.io

  20. 20

    Send documents that expire, cap views, and can be revoked

    22d ago · capsule.technology

  21. 21

    Write letters to the future. Encrypt passwords for family.

    Jul 2026 · lasalu.cn

  22. 22

    Temporary scheduling links | share availability in seconds

    Oct 2025

  23. 23

    Encrypted One-Time Secret Sharing

    Feb 2026 · secretdrop.us

  24. 24

    Write to your future self, fully private and offline.

    Feb 2026 · apps.apple.com

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