File encryption:
Subsections follow.

1. Using a separate file for every encrypted file:
Best Free File Encryption Utility
AxCrypt
DsCrypt
Crypt4free
EncryptOnClick
Toolwiz BSafe
Eureka
Androsa FileProtector
ICE encrypt
FreeSecurity
Crypt
Lazar Crypter
Blowfish Advanced CS
bcrypt; BcryptFE (GUI)
Handy Encryption
JavaEncryptor
Right-Click Encrypter
Adhcifar
MyFolder
MAXA Crypt Portable
Encoding Decoding Free
Sicurpas
idoo File Encryption Free
VSEncryptor
Encryption Wizard
Kryptel Lite
Bulambod
Smart Encryptor
encrypt
Silver Key Free
AES Crypt
BCArchive
GoAnywhere OpenPGP Studio
WinAES
Omziff
MultiObfuscator
Protectorion Data Safe
Quick Crypt
gpg2winshell

2. Using a virtual drive:
Best Free Encrypted Virtual Drive Utility
TrueCrypt; TruPax; TestCrypt
FreeOTFE
Safehouse Explorer
Secret disk
R-Crypto
Private-Public
Cypherix Cryptainer LE
CryptoExpert Lite
VeraCrypt
BestCrypt Traveller
CipherShed

3. Using a file archiver:
Best Free File Archiver-Zip Utility
7-Zip
IZArc
PeaZip
KGB archiver
Secure Archive
Bandizip
HaoZip
FreeArc
TUGZip
ZipGenius
A2 Strong Encryption Tool
Pocket UnZip
Secret Data Manager
ArcThemAll!
Express Zip
Bitser
More

4. Whole drive encryption:
Best Free Drive Encryption Utility
TrueCrypt; TruPax; TestCrypt
FREE CompuSec
Comodo
DiskCryptor
BitLocker Drives Unlocker

5. USB drive encryption:
USB flash security
Rohos Mini
SecureStick
Encrypt Stick
USB Safeguard
R.W. Flash Drive Explorer
Granite Portable
SecurStick

6. On-the-fly file encryption before storing online:
Best Free Encryption Utility for Cloud Storage
Cloudfogger
BoxCryptor
Secured Cloud Drive
nCrypted Cloud
Viivo
Cloudifile
Cryptomator
More

Text encryption:
Steganos LockNote
ETXT
crypTN
gpg4usb
scrambled-egg
ImmediateCrypt
Free Message Encrypter
MAXA TEXT-2-EXE
CTI Encryption
Cypher Bot
Text Guard lite
Secret Notes
BCTextEncoder
CryptoLab
MultiObfuscator
SecureEdit

Email encryption:
PGPFreeware
Comodo SecureEmail
Gpg4win
GPGrelay
Enigmail
Sophos Free Encryption
Safester
GPG4Browsers (Ch)
SafeGmail (Ch)
Mailvelope (FF,Ch)
InstantCrypt
Cassiopeia's BitMail
Email Guardian (FF,Ch)
Virtru (FF, Ch)
How to Encrypt Your Email and Keep Your Conversations Private
Automatically Encrypting all Incoming Email
CryptoLab
Confidant Mail
See also in this list: Secure e-mail service

Portable encryption applications:
Best Free Encryption Utility for Personal Use at Work

Hiding files/folders:
Best Free Folder Hiding Utility
My Lockbox
WinMend Folder Hidden
Easy file locker
Wise Folder Hider
Hidefolders
Free Hide Folder
MySecretFolder
FolderGuard
Secure Folder
HiddenDIR
Disguise Folders
FileWall
Sneaksy
Simple Run Blocker
More

Locking files/folders:
File & Folder Locker
A+ Folder Locker
BuduLock
LocK-A-FoLdeR
PadLock
SecretFolder
My Lockbox
Simple Run Blocker
Secure Folders

Steganography:
OpenPuff
Bon Kuy Bon
Steghide; Steghide UI; StegTorrent
wbStego
Hide in picture
DIIT
Invisible secrets
Concealar
BitCrypt
SteganoG
Free File Camouflage
Our Secret
Cipher Image Free
DeepSound
CipherTune
Steganography Revealed
SecretLayer
How to Hide Files in JPEG Pictures

Password protect applications:
Empathy
WinGuard Pro
ExeLock

Other:
SecureTrayUtil
Stunnel
MAXA Key Exchanger
TCHead
CryptSync
Secret Sharp
HP Trust Circles
List of One Time Pad encryption programs
Datum Locker
CrypTool
ShadowCrypt (Ch)
FREEWARE GUIDE - Utilities - Security & Encryption

Read/Post comments