About SecureBin.ai
We believe encryption should be accessible to everyone - not just security experts. SecureBin.ai is a free, zero knowledge encrypted pastebin and developer tools platform designed to make sharing sensitive information simple and secure.
Our Mission
Privacy is a fundamental right, not a premium feature. SecureBin.ai was built with a single goal: to provide a secure, free, and easy way for anyone to share sensitive text, code, passwords, and files without trusting a third party with their data.
Too many services ask you to trust them with your unencrypted data. We took a different approach. With SecureBin.ai, you don't have to trust us at all - because we are technically unable to access your data.
How It Works
SecureBin.ai uses a zero knowledge architecture. Here is what that means in practice:
You Write
Enter your text, code, or upload a file in your browser.
Browser Encrypts
Your browser encrypts the data using AES 256 GCM before anything leaves your device.
We Store Ciphertext
Only encrypted data (unreadable ciphertext) is sent to and stored on our servers.
Key Stays With You
The decryption key is in the URL fragment (#), which is never sent to our servers.
Zero knowledge means zero trust required. Even if our servers were compromised, attackers would only find encrypted gibberish. Your data remains secure because the key never touches our infrastructure.
Receive Mode
Need someone to send you a secret? Receive Mode flips the flow. Create a secure receive link and send it to anyone. They paste the secret, it gets encrypted in their browser, and only you can decrypt it. One time read, then auto deleted.
No accounts, no installs, no plaintext exposure. The sender never sees the decryption key, and the secret is destroyed after you read it. Try Receive Mode →
Our Tools
Beyond the encrypted pastebin, SecureBin.ai offers a growing suite of 18+ free developer and security tools. Every tool runs entirely in your browser - no data is ever sent to a server.
Encoders & Crypto
Formatters & Code
Text & Utilities
All tools are free, require no sign-up, and process everything locally in your browser. Explore all tools →
Technology
SecureBin.ai is built with modern, privacy-respecting technology:
- Cloudflare Workers: Our serverless backend runs on Cloudflare's global edge network, providing low-latency access from anywhere in the world with no traditional servers to compromise.
- Web Crypto API: All cryptographic operations use the browser's native Web Crypto API, a battle-tested, hardware accelerated cryptographic library built into every modern browser.
- AES 256 GCM: The gold standard in symmetric encryption. The same algorithm trusted by governments and financial institutions worldwide.
- PBKDF2: When you add a password to a paste, we use PBKDF2 with a high iteration count to derive a strong encryption key, protecting against brute force attacks.
- Cloudflare KV: Encrypted paste data is stored in Cloudflare's globally distributed key-value store with automatic TTL-based expiration.
Open Source
We believe in transparency. SecureBin.ai's client side encryption code is designed to be auditable. You can inspect the encryption logic directly in your browser's developer tools to verify that encryption happens before data is transmitted. We encourage security researchers and developers to review our implementation.
Who We Are
SecureBin.ai is built and maintained by Usman Khursheed Khan - a Cyber Security Researcher (CEH), Cloud Architect, and Senior DevOps/SecOps Engineer with 8+ years of experience in infrastructure security, AWS, Kubernetes, and application security.
SecureBin was created because existing solutions either lacked encryption, required accounts, or were unnecessarily complex. As a security professional, Usman built SecureBin with the same zero-trust principles used in enterprise environments - your data is encrypted before it ever leaves your browser.
We are committed to keeping SecureBin.ai free, private, and ad-supported rather than data-supported. Your data is never the product.
Contact Us
We would love to hear from you. Whether you have questions, feedback, feature requests, or security concerns:
General inquiries: hello@securebin.ai
Privacy concerns: privacy@securebin.ai
Legal matters: legal@securebin.ai