What Is Password.link and What Can You Use It For?

Password.link is a service for sending and receiving sensitive information—passwords, API keys, confidential files—through one-time links that self-destruct after a single view. It fits situations where email or chat feels too exposed for the content being shared, and it offers three modes: sending a secret, requesting a secret from someone else, and a one-time encrypted chat. Secrets are encrypted in the browser with AES-256-GCM before they leave it, and the service describes itself as zero-knowledge and EU-hosted.

How the core mechanism works

The important detail is where encryption happens. When you create a link, the secret is encrypted in your browser before transmission, so the plaintext is not sent to the server. The recipient opens the link, views the secret once, and the link self-destructs.

A concrete example: you need to hand a database password to a contractor. Instead of pasting it into email, you create a one-time link, send the URL through whatever channel you already use, and the contractor opens it once. After that view, the link no longer works—so a forwarded email or a later inbox compromise doesn't expose the password.

Per-link settings let you configure expiration time, an additional password, CAPTCHA, and how many times the link can be opened. Those controls matter when the recipient may be slow to act or when you want a second factor beyond possession of the URL.

The three ways to use it

The Receive mode is the less obvious one and often the more useful: instead of waiting for someone to send you a password insecurely, you give them a structured way to submit it that only you can open.

Features worth knowing before you choose

• Attachments and branding are available to registered users; the site notes that creating an account is free and requires no credit card, and that registered users get access to all features and can create more Secrets.
• Bulk Secrets lets you generate many one-time links from a CSV file. The CSV parsing happens in the browser, so the service states it doesn't have access to the data in the file—relevant if you're provisioning credentials for many users at once.
• Teams features include separate accounts for team members, centrally managed settings, and single sign-on (SSO), which is the main reason an IT team would pick this over ad hoc link tools.
• Notifications keep you informed of updates, such as when a link has been viewed.
• QR codes can be generated for a link and downloaded as an image, useful for sharing to a phone or in person.

Limits and practical caveats

The free tier is not unlimited: the interface shows a "Limit for new Secrets reached" error when you hit the cap, with the guidance that registered users can create more. If you plan to use this regularly, check the Plans page for current tiers rather than assuming the free allowance covers your volume.

There is also a length limit on secrets—the tool returns "Length exceeded, please use a shorter Secret"—so very large files should go through the attachment feature rather than being pasted as text.

Finally, the one-time design is a strength and a constraint: if the recipient never opens the link before it expires, or opens it and loses the content, you need to create a new one. Set the expiration window with the recipient's actual availability in mind.

Is it the right tool for you?

Use Password.link if you regularly exchange credentials or confidential files with individuals or a team and want a self-destructing, browser-encrypted link rather than plain email. The Secret Request mode is particularly worth adopting if you collect sensitive data from clients. If you only need to share a secret once or twice, the free allowance and one-time links are enough to try it; if you need SSO, centralized management, or high volume, look at the team plans before committing.