Local-First Security

Local Browser Encryption Keeps Your Data on Your Device

Local browser encryption performs encryption and decryption directly in your browser instead of sending your files or text to remote servers. This privacy-first approach helps reduce unnecessary exposure while giving you greater control over your sensitive information.

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Local-First Security

Local Browser Encryption

Encryption happens directly on your device - Reduces exposure of sensitive plaintext - Keeps passwords under your control

01

Encrypti0n performs encryption and decryption locally using modern browser cryptography without uploading plaintext to remote servers.

02

Optional application encryption, inactivity auto-lock, and encrypted password storage provide additional protection for locally stored app data.

03

Built-in privacy controls allow users to rotate local encryption keys, clear stored data, and export encrypted application settings.

Built for trust

Designed to keep things secure

Everything is designed to help you complete the task with as little friction as possible.

01

Encryption happens directly on your device

Encrypti0n performs encryption and decryption locally using modern browser cryptography without uploading plaintext to remote servers.

02

Reduces exposure of sensitive plaintext

Optional application encryption, inactivity auto-lock, and encrypted password storage provide additional protection for locally stored app data.

03

Keeps passwords under your control

Built-in privacy controls allow users to rotate local encryption keys, clear stored data, and export encrypted application settings.

Try it out

Best practices for local browser encryption

Local encryption works best when it is combined with good security habits.

What to expect

Helpful information before you begin

  • Encrypti0n performs encryption and decryption locally using modern browser cryptography without uploading plaintext to remote servers.
  • Optional application encryption, inactivity auto-lock, and encrypted password storage provide additional protection for locally stored app data.
  • Built-in privacy controls allow users to rotate local encryption keys, clear stored data, and export encrypted application settings.
  • The documentation explains both the strengths and the limitations of local-first encryption so users can make informed security decisions.

Good to know

Security and privacy notes

  • Local encryption significantly reduces one category of risk, but it cannot protect against malware or someone who already has access to your unlocked device.
  • Keeping your operating system, browser, and installed extensions secure remains an essential part of protecting sensitive information.
Best next step: Try Local Browser Encryption and keep passwords unique, long, and stored safely.

Real-world use cases

Where Local Browser Encryption fits into everyday workflows

Security works best when it supports the task people are already trying to complete.

1

Protecting confidential documents before cloud storage

Encrypt documents locally before they are synced, backed up, or shared.

2

Encrypting sensitive files while travelling

Protect files in the browser when working from changing locations or temporary devices.

3

Privacy-focused personal encryption

Use local browser encryption for private notes, files, PDFs, and personal archives.

4

Secure workflows for freelancers and small businesses

Add encryption to client handoffs without requiring complex infrastructure.

Learn more

Why encrypt data locally?

Every time sensitive information is uploaded before it is encrypted, another system temporarily has access to the original plaintext. Local browser encryption changes that workflow by protecting your data before it leaves your device. This reduces the amount of trust you need to place in cloud services while giving you greater control over your own information.

FAQ

Questions people ask before using this

The biggest advantage is that your files and text are encrypted before they leave your device. This reduces unnecessary exposure of sensitive information to remote servers or third-party services.

No. Local encryption protects data during storage and sharing, but it cannot prevent malware, compromised devices, or poor password practices from exposing sensitive information.

Yes. Because plaintext stays on your device during encryption, less sensitive information is transmitted or stored by external services.

Absolutely. Keep your browser updated, remove unnecessary extensions, use strong passwords, and enable full-disk encryption on your device whenever possible.

No. Encrypti0n does not require an account to encrypt or decrypt text and files, helping minimise unnecessary data collection.

Yes. The application includes optional local app encryption, encrypted password slots, inactivity auto-lock, and encrypted import and export features for protecting locally stored configuration data.

If someone gains control of your device while it is unlocked or infects it with malware, they may access sensitive information before it is encrypted or after it has been decrypted. Device security remains just as important as strong encryption.