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A modified version of Filezilla® dedicated to keeping your FTP passwords secure.

FileZilla Secure FTP Client

FileZilla Secure was made to implement a missing feature of the FileZilla® FTP client by adding encryption to the stored passwords to protect them from being stolen.

UPDATE 12/11/2017: Due to FileZilla requesting that any unauthorized use of its registered trademark cease, only the source code download is available at this time. Development may continue under a different project name/domain name, stay tuned.
Why FileZilla Secure? Screenshots Bonus: More Speed Download FileZilla Secure icon Download FZS Version 3.18.0  • Source Code • 25.5MB Other Systems

Why FileZilla Secure?

tl;dr at the time I started this project, FileZilla® did not encrypt saved FTP passwords and I got hacked, so I decided to implement it on own. Now Filezilla® has also decided to support encrypted passwords.

I've been a web developer for a while now and like most web developers I use FTP, a lot. I used, and loved, FileZilla®. It was intuitive, fast, and free. Plus it saved all my logins and passwords for me which made managing the dozens of sites I looked after much much easier.

Everything was fine for years until one day all of the websites I managed were hacked, filled with malware, and blacklisted from Google on the same day. How could this be?

I soon discovered that FileZilla® was storing all my passwords in a plain text file on my computer, and knowing this, malware authors and hackers are targeting this file. All it took was for me was to visit a website that had been compromised, the malware got into my system through some sort of browser exploit, and within seconds someone somewhere suddenly had access to all of my websites.

After spending almost a week trying to clean up this mess I was determined to never let this happen again. What could be done to prevent this? Other programs that save sensitive information like Firefox, Chrome, Bitcoin, and others use a master password to encrypt and protect your information. This way if someone gets a hold of your password file they won't be able to read it without the master password.

Adding master password functionality is the #1 requested feature for FileZilla®. Unfortunately the author of FileZilla® refuses to add this feature, insisting that it is the responsibility of the OS to protect your files. While I can see his point, the harder I make it for hackers the better as far as I am concerned.

So despite loving FileZilla® I switched to WinSCP which has master password support. It was slow and the interface was horrible but what could I do? I couldn't risk getting hacked again.

After much frustration I finally decided to modify FileZilla® and add the master password support so that I and others could once again use the FTP client I love without risking everything.

Bonus: More Speed!

The maximum number of transfer threads has been increased from 10 to 1000! While 1000 is not recommended 20, 50, and even 100 threads has been shown to work and has increased transfer speeds by over 5x.


Setting New Master Password
FileZilla Secure Screenshot
Encrypted Saved Password File
Unlocking FileZilla Secure with Master Password

Official Downloads of Filezilla Secure FTP Client

Due to FileZilla requesting that any unauthorized use of its registered trademark cease, only the source code download is available at this time.

Windows Vista, 7, 8, 10

     64bit Installer - REMOVED
     64bit Portable - REMOVED
     32bit Installer - REMOVED
     32bit Portable - REMOVED

Windows XP


Mac OS X



Download the source code.