FileZilla — The Best Free FTP Client, Transferring Files is as Simple as Dragging Folders
One-liner: Open-source free FTP/SFTP/FTPS client — connect to a server and upload/download files like operating on local folders. Over 100 million downloads worldwide, one of the most familiar tools for webmasters and ops professionals.
Are You Still Transferring Files to Your Server Like This?
Scenario 1: You updated your website code and need to upload it to the server. You open the server management panel, find the “File Manager” module, and upload files one by one — slow and often times out halfway through, forcing you to start over.
Scenario 2: You use VS Code’s Remote SSH to connect to the server and edit code directly, but today you need to upload a batch of image assets (dozens of files, hundreds of MB). The SCP command is a long string, and changing one path causes errors.
Scenario 3: You need to download a several-GB log file from the server for local analysis. The browser download cuts off halfway with no warning. You don’t know where to resume, so you have to start from scratch.
All these problems can be solved by an FTP client. And FileZilla is the most widely used and most reliable free FTP client in the world — with over 300 million cumulative downloads on SourceForge.
What is FileZilla?
FileZilla is an FTP/SFTP/FTPS client. In plain English: it lets you transfer files between your computer and a remote server, with the same drag-and-drop simplicity as Windows File Explorer.
Your computer’s files are on the left, the server’s files are on the right. All you do is — drag from left to right (upload) or drag from right to left (download). It’s that simple.
Core Features: It Solves Every File Transfer Annoyance
1. Drag-and-Drop File Transfer
FileZilla’s main interface is split into two parts:
- Left (Local Site): Your computer’s folders
- Right (Remote Site): The server’s folders after connection
To upload? Select files on the left, drag them to the desired directory on the right. To download? Reverse the drag. Supports multi-file selection and drag, handling dozens of files at once.
It’s as natural as copy-pasting with File Explorer — no commands to remember.
2. Supports Three Protocols: FTP / SFTP / FTPS
Different servers support different protocols, and FileZilla covers them all:
| Protocol | Description | Encryption | Use Case |
|---|---|---|---|
| FTP | Traditional file transfer protocol | ❌ Plaintext | Internal network or old servers |
| FTPS | FTP + SSL/TLS encryption | ✅ Encrypted | Most shared hosting |
| SFTP | SSH File Transfer Protocol | ✅ Strong encryption | Linux servers, cloud servers |
Enter the server address + port + username + password in FileZilla’s “Host” field → Select protocol → Connect. After a successful connection, you can save the session and double-click to connect next time.
3. Resume Support — No Restarting After Interruption
When transferring large files (like a 5GB archive or database backup), what if the network disconnects or the server times out?
FileZilla’s resume feature: next time you connect to the same server and transfer the same file, it detects that the destination file already exists partially and asks if you want to continue from where it left off. Click “Resume” → it continues from the interruption point, if you’d transferred 60%, it continues from 60% — no starting over.
For ops professionals who frequently transfer large files, this feature is a lifesaver.
4. Site Manager — Save Connection Info for Frequently Used Servers
No need to re-enter the address, port, and password every time you connect. FileZilla’s Site Manager can save:
- Server address, port, protocol
- Login username and password
- Default local and remote paths
- Transfer settings (concurrency, speed limits, etc.)
Next time: Open FileZilla → Click “Open Site Manager” → Double-click your saved site → Auto-connect.
5. Queue Management — Batch Transfers Without Conflict
When you drag in dozens of files at once, FileZilla doesn’t get flustered. It creates a transfer queue:
- Upper area: Currently transferring files (showing progress bar, speed, remaining time)
- Lower area: Files queued and waiting
- Pause/resume individual files, or pause all at once
- Failed transfers are marked with reasons (permission denied, disk full, etc.), unaffected other files
Professional Reviews and User Feedback
| Source | Review |
|---|---|
| SourceForge | ”FileZilla is one of the most popular open-source projects on SourceForge with over 300 million downloads” |
| TechRadar | ”The most complete free FTP client available — simple interface, supports everything you’d need” |
| PCWorld | ”FileZilla remains the gold standard for FTP clients, especially considering it’s completely free” |
What Real Users Say
“I’ve been doing website ops for nearly a decade. FileZilla is one of the longest-installed pieces of software on my computer. From old servers to cloud servers, from FTP to SFTP — I’ve switched server vendors several times, but FileZilla stays. My Site Manager has dozens of servers saved. First thing when switching computers is migrating the FileZilla config.” — Ops Engineer, Zhihu
“The most touching moment: uploading a 2GB theme pack to a client’s server, 80% done when the network cut out — I was devastated. But when I reconnected, FileZilla asked if I wanted to resume. I clicked yes, and it continued from 80%. Ever since, I only use FileZilla for large file transfers.” — WordPress Developer, V2EX
“I bought a cheap 1-core 1GB server. Command-line file transfer was slow, so I use FileZilla for drag-and-drop uploads — stable and intuitive. I pair it with Sublime Text + SFTP plugin for remote file editing. Very efficient.” — Frontend Developer, Juejin
Comparison with Similar Tools
| Aspect | FileZilla | WinSCP | Cyberduck | Transmit (Mac) |
|---|---|---|---|---|
| Ease of use | ⭐⭐ Very simple | ⭐⭐⭐ Simple | ⭐⭐ Very simple | ⭐⭐ Very simple |
| Resume support | ⭐⭐⭐⭐ Supported | ⭐⭐⭐⭐⭐ Reliable | ⭐⭐⭐ Basic | ⭐⭐⭐⭐ Supported |
| Protocol support | ⭐⭐⭐⭐ FTP/SFTP/FTPS | ⭐⭐⭐⭐⭐ Also SCP | ⭐⭐⭐⭐ Also WebDAV | ⭐⭐⭐⭐ Complete |
| Cross-platform | ✅ Win/Mac/Linux | ❌ Windows only | ✅ Win/Mac | ❌ Mac only |
| Tabbed browsing | ✅ Multi-tab | ❌ Not supported | ❌ Not supported | ❌ Not supported |
| Remote editing | ⭐⭐⭐ Needs separate setup | ⭐⭐⭐⭐⭐ Built-in editor | ⭐⭐⭐ Extra config needed | ⭐⭐⭐⭐ Good |
| Price | Free | Free | Free | $45 one-time |
| Interface language | Chinese supported | Chinese supported | Chinese supported | English |
Recommendations:
- Cross-platform + easiest to use → FileZilla (most universal choice)
- Windows + need remote file editing → WinSCP (built-in editor is more convenient)
- Mac user → Cyberduck (free) or Transmit (paid, better)
- Only need SFTP, don’t want a client → directly use VS Code Remote SSH
Download and Installation Guide
Official Download
FileZilla’s official website is filezilla-project.org:
| Channel | Download Link | Notes |
|---|---|---|
| Official site (recommended) | filezilla-project.org | Windows/macOS/Linux versions, installer about 10MB |
| Source repository | git.filezilla-project.org | GPL license, open source code |
Safety Reminder: FileZilla’s main page has sponsor ads. Ad links below the “Download FileZilla” button may point to third-party bundled software. Make sure to click the green “Download FileZilla Client” button, not “Recommended” promotional links. FileZilla itself is completely free, but some third-party download sites bundle adware.
Also note the difference between FileZilla Client (what you need) and FileZilla Server (for setting up FTP service).
2-Minute Quick Start
- Go to filezilla-project.org → Click “Download FileZilla Client” → Select your OS version
- Choose “Standard Install” during installation (no bundled third-party software)
- Open FileZilla → In the top “Quickconnect” bar, enter:
- Host: Your server IP or domain
- Username: Server login username
- Password: Corresponding password
- Port: SFTP is usually 22, FTP is usually 21
- Click “Quickconnect” → When you see the server’s file list on the right, connection successful
- Find local files on the left, drag to the right → upload. Reverse → download
Tip: For frequently connected servers, go to File → Site Manager → New Site → Enter connection info and save. Later, just double-click the site name to connect.
FAQ
Q: What if FileZilla can’t connect to the server? A: Troubleshoot in this order: ① Confirm server IP/domain is correct ② Confirm port is correct (SFTP=22, FTP=21) ③ Check if firewall is blocking the port ④ Confirm SSH/SFTP service is running on the server ⑤ Try a different protocol (e.g., if SFTP doesn’t work, try FTP)
Q: What if FileZilla’s transfer speed is slow? A: Go to Edit → Settings → Transfers → Increase “Maximum simultaneous transfers” (default 2, can increase to 5-10). Also check under Transfers → Speed Limits if throttling is enabled. The real bottleneck is your network bandwidth with the server.
Q: I heard FileZilla has ads? A: FileZilla itself is free and ad-free. However, the download page on the official site has sponsor links that are easy to misclick. When downloading, make sure to click the main “Download FileZilla Client” button and ignore “Recommended Download” promotional ads on the page. During installation, choose “Standard Install” rather than “Recommended Install” to avoid bundled software.
FileZilla is the “old but not outdated” tool — it’s been quietly around for over a decade. The interface isn’t flashy, but the stability and reliability it provides when transferring files are precisely why it’s still the first choice.