Online privacy has started to sound like an oxymoron! Every e-mail (confidential or not) you send is sent as a plain text and if intercepted, it will just be a sitting duck with no protection whatsoever.

There are multiple ways to automatically encrypt text messages and emails using some kind of hash functions like MD5, SHA1 etc. Of-course you can setup Outlook for encryption, but it’s very technical and requires lots of other services in order to work correctly. A simple way to encrypt a text message is to use any of the free online tools listed below

Top 10 Online Services to Encrypt Text Messages

1. Crypo – Crypo has a huge collection of online tools like Hash generator, one pass generator, pass phrase generator etc. For encrypting email messages, you can use AER-256+ or other related tool.

2. Encrypt Easy – Encrypt and secure your messages online with Blowfish, which is one of the most secured encryption algorithm. Pretty straight-forward to use.

3. Lock My Stuff – In addition to encryption and decryption of messages, it allows you to store the encrypted text on its server and send the URL.

4. Crypto – A simple text encryption Java based applet with key, Caesar and Pseudo-CES encryption options.

5. Webnet77 Blowfish encryption – An alternative to Encrypt-easy tool with not so attractive user interface but equally efficient online service.

6. Dinofilias – A very simple and easy-to-use online text encryption service.

7. Infoencrypt – It’s a popular message encryption service with a nice UI and detailed explanation on the features and uses of text encryption.

8. EnetPlanet – Another nice encryption service with an option to save the encrypted text to a file or choose an encrypted file and decrypt it.

9. Flexcrypt – quite similar to Infoencrypt.

10. Lockbin – free online email encryption service which was quite popular when it was introduced but had its own share of problems later on. It is still useful to encrypt the message and mail it directly using the form available.

Which one you like and why? Any other service worth including in the list above?


Raju is the founder-editor of Technology Personalized. A proud geek and an Internet freak, who is also a social networking enthusiast. You can follow him on Facebook and on Twitter. Mail Raju PP. Follow rajupp


  • drtent

    Questions that readers should consider include “Do you really want to use a free encryption solution?” and “What are the risks?”

    and: “Will you get what you pay for? What is the incentive of the free encryption vendor to protect what you have given them? How important is your information and how much effort do you want to put into a free technology that may not be fully baked…and how easy will it be to force recipients of free email encryption to trust it and use it?”

    If you still want to use something free, go for it.

    One of the better email encryption options that is pretty reasonably priced is Voltage SecureMail.

    Voltage SecureMail helps you easily send encrypted email to anyone.

    Voltage SecureMail has Outlook plug-ins or you can use a web interface for sending encrypted email. Messages are completely controlled by the sender and recipient in their sent folder and inbox. No messages are stored on servers so you don’t run into Hush or Zix issues where messages expire. You always have the ability to decrypt your messages.

    Recipients don’t need any special software to decrypt and read their messages, just a browser. And recipients don’t need to pay to read their email. In fact, they even get free support from Voltage. It’s much easier to use than PGP, S/MIME or other older solutions…and just as secure…which is probably why they can afford to offer free support to their customers and recipients…unlike the other solutions.

    It’s an ideal solution to help address state privacy regulations in Massachusetts and Nevada as well as the more general HIPAA, SOX, PCI requirements, etc.

    There is a free trial at:

  • gerard

    This is just basic. I mean security 101 kind of stuff…..From what I could tell, only FlexCrypt provided a secure, SSL connection. What good is typing a message to “encrypt” when it’s in plain text in the first place for your ISP to see?!?! That’s HORRIBLY insecure. I only saw https at FlexCrypt. The ones with only a regular http connection is not secure from the get-go. Many will fall for it though thinking it’s “secure.”

    • Dvs01

      Free solutions in situations like this can often be superior. Picking a free open source and standards-compliant encryption solution is a wise choice.

  • Danny Slenowski

    Lockbin provided a secure ssl connection with a valid certificate. A free desktop application lets me send encrypted emails from my desktop, or I can use it online.

  • Lockbin

    Thanks for mentioning Lockbin. Version 2.0 is now available.
    Added AES-256 bit encryption for storage.
    Now send file attachment with your email
    Mobile site now available at
    Free desktop app (Java) lets you upload files directly to Lockbin from your Windows/Mac/Linux computer.


  • Joey

    Free text encryption and decryption available at:

  • Rebecca Kubba

    What about I was looking for a free online email encryption service a few months ago and found them. Love it!

  • Pete

    This is an excellent free email encryptor service too

  • balaji

    i want encryption algorithm for android products particularly the sms and mms technology

  • Alberto Hornero

    Don’t forget

    It’s easy and fast!

  • curious cat

    I received what looks like an encrypted text msg. This girl could just be trying to mess with my mind, but if she is, she went to alot of trouble. I know that it came from an android and  I just have a plain old phone.
    It came as 3 txt msgs. The first txt was just my nickname. The next two are garbled letters and symbols.
    Ive checked the online sites for decrypting. I dont know what the “key” is unless its my nickname which was in the first text.       I feel like a fool for even asking or trying to figure this out. Im just so curious.
    Any help for me out there?

  • Steve Mage

    By far the most used encrypted message system is iMessages from Apple. The DOJ recently released a memo stating that with or without a warrant iMessages were completely unreadable.

    • Frank Machnick

      and if you believe that I’ve a bridge to sell you.

  • Frank Machnick

    With instacrypt I’ve tried to make something a little more user friendly where neither the sender or the receiver has to know what they are doing besides entering in a message and a key. It does transmit the encrypted message to our server temporarily but that is just to obfuscate it as much as possible because sending an email with the encrypted text in the email is only one layer of protection. Sending a shortened link instead of the encrypted text is much safer, and the text can be deleted and destroyed once the link has been used.