OneTimeSecret Alternative: Encryption in the Browser, Not on the Server
The decisive difference is not the feature set but where encryption happens – and who could theoretically see the plaintext.
Disclosure
Encipher.Me is our own product, so this comparison is not neutral. That is why we keep it verifiable: all statements about other tools come from their official documentation and are linked, and for each tool we explicitly state when it is the better choice than Encipher.Me.
Encipher.Me compared with OneTimeSecret
OneTimeSecret is an established, open-source service for one-time messages and does its core job well. The architectural difference to Encipher.Me concerns the path your plaintext takes.
OneTimeSecret describes its approach as follows: "Every secret is encrypted with its own unique key before being stored. Decryption keys live on the application server, never in the database." That means your secret is transmitted to the server and encrypted there, and the decryption keys live on the application server. This reliably protects against pure database theft – but the plaintext passes through the server, and whoever controls the application server can technically decrypt stored secrets until they are deleted.
With Encipher.Me the plaintext never leaves your browser. AES-256-GCM encryption happens entirely client-side via the Web Crypto API, and the key sits in the fragment part of the link after the # – a part that browsers, per RFC 3986, do not send to servers. Our servers only ever store ciphertext without the matching key. There simply is nothing readable for us to hand over – not even to a government request.
Information about OneTimeSecret according to onetimesecret.com/, as of July 30, 2026.
When OneTimeSecret is the better choice
If you want to audit the source code yourself or run the service on your own infrastructure, OneTimeSecret is the better choice: it is open source, Encipher.Me currently is not. And if you need central team management, custom branding or advanced access controls, OneTimeSecret offers paid plans for that – Encipher.Me has no such features.
All four tools at a glance
| Encipher.Me | OneTimeSecret | PrivateBin | SnapPass | |
|---|---|---|---|---|
| Encryption happens | In the browser | On the server | In the browser | On the server |
| Plaintext reaches the server | No | Yes | No | Yes |
| Own server required | No | No (hosted) | Yes or third-party instance | Yes |
| Usable instantly, no setup | Yes | Yes | Only via third-party instance | No |
| Open source | No | Yes | Yes | Yes (MIT) |
| Hosted in Germany | Yes (IONOS) | n/a | Your choice | Your choice |
| GDPR Art. 28 processing agreement | Yes | n/a | Your responsibility | Your responsibility |
| Additional password protection | Yes (Argon2id) | Yes (passphrase) | Yes | n/a |
| File attachments | Yes (with account) | n/a | Yes (off by default) | No |
| Registration required | No | No | No | No |
| Cost | Free | Free + paid plans | Free (plus hosting) | Free (plus hosting) |
"n/a" = not publicly documented or not verifiable by us. As of July 30, 2026. All alternatives compared
Frequently asked questions
What is the difference between OneTimeSecret and Encipher.Me?
The core difference is where encryption happens. With OneTimeSecret the secret is transmitted to the server and encrypted there; according to the provider, decryption keys live on the application server. With Encipher.Me encryption happens in your browser using AES-256-GCM, and the key stays in the link fragment after the # character, which browsers do not send to servers. The operator of Encipher.Me therefore cannot technically read content. In addition, Encipher.Me runs on servers in Germany with a GDPR Article 28 data processing agreement.
Is there a OneTimeSecret alternative hosted in Germany?
Yes. Encipher.Me is operated at IONOS SE in Germany, with a data processing agreement under Article 28 GDPR and a German imprint including a serviceable address. For companies that need a documented processing chain this is often the decisive point – independently of the encryption technology.
Is Encipher.Me free like OneTimeSecret?
Yes, encrypting and sharing passwords and messages is completely free, with no registration, no ads and no tracking. Unlike OneTimeSecret there are no paid tiers with extra features – an optional free account adds a message overview, encrypted file attachments and two-factor authentication.
Do I need to install or migrate anything to switch?
No. There is nothing to migrate, because one-time messages are not stored permanently anyway. You open encipher.me in your browser and create your first link – no installation, no registration, no change for recipients. Recipients need nothing but a browser either.
Read on
PrivateBin alternative · SnapPass alternative · All compared · Share a password securely · Zero-knowledge encryption explained · Self-destructing messages
Operator: IT-Service M.Tichý, Berlin-Spandau, Germany (imprint). Servers located in Germany, processing agreement under Article 28 GDPR (privacy). Last reviewed: July 30, 2026.
No registration. No software. No tracking.