SnapPwd alternative: OncePad vs SnapPwd
Both encrypt in the browser. The difference is whether the link is enough.
Short answer: OncePad is a free, no-account service for sharing a password, secret, or file through an end-to-end encrypted link. The link contains no decryption key, works once, and expires after 24 hours. Files may be up to 25 MB.
Where they agree
SnapPwd and OncePad are both no-account, one-time, browser-encrypted handoffs. The server is supposed to store ciphertext only. Reveal waits for a human click, so previews and scanners do not burn the secret on load. Files are supported. Neither requires a signup.
The core difference
SnapPwd's documented default puts the decryption key in the URL fragment after #. One link is enough. They also offer "Send key separately" as an advanced option.
OncePad never puts the key in the link. The passphrase is generated (7 words) and must travel on a second channel. The client will not issue or open a key-in-URL link.
Side by side
| Feature | OncePad | SnapPwd |
|---|---|---|
| Encryption location | Browser, before upload (AES-256-GCM) | Browser, before upload (AES-GCM) |
| Key placement | Generated 7-word passphrase sent separately; no key in link | Default: key in the URL fragment after #. Optional: send the key separately |
| File support / limit | One browser-encrypted file up to 25 MB | Files supported; text form shows 1 MB. File Share UI: 2 MB max |
| Expiry | Exactly one reveal or 24 hours | One reveal; expiry configurable (1 hour / 1 day / 1 week / 2 weeks, or custom 5 minutes to 1 year) |
| Accounts | No account | No account |
| Open-source status | Hosted app source not publicly released | Public client and server; Docker self-host, CLI, and API documented |
When SnapPwd may suit you better
Choose SnapPwd when you want a single link (key in the fragment), configurable expiry longer than 24 hours, a public codebase you can read or self-host, or a CLI/API. If one-click delivery matters more than forcing a second channel, SnapPwd is built for that.
When OncePad is the better fit
Choose OncePad when the link must be harmless by itself — safe to paste in email, Slack, or a ticket — and the passphrase is strong by default, not by an advanced setting. Fixed one-read, 24-hour ceiling, no account.
Last verified: August 19, 2026. Descriptions of SnapPwd are based on its homepage and security documentation and are given in good faith; editions, limits, and policies change, so verify them before deciding. SnapPwd is a trademark of its respective owner and is not affiliated with OncePad.