CLI vs GUI: Which VPN Client Fits You?
FreeGuard offers two ways to use VPN: a graphical app with buttons and menus, and a command-line client that lives in your terminal. Both connect to the same servers, use the same protocols, and share the same subscription. The difference is how you interact with them — and which one fits your workflow better.
Side-by-Side Comparison
| Feature | CLI | GUI |
|---|---|---|
| Connection speed | Instant (sub-second) | 2-5 seconds (app launch + connect) |
| Automation | Full scripting support | Manual only |
| Learning curve | Moderate (terminal familiarity) | Low (point and click) |
| Server selection | Command flags or interactive list | Visual map and list |
| AI agent support | Native integration | Not available |
| Headless servers | Full support | Not possible |
| System resources | Minimal (~20MB RAM) | Moderate (~100-200MB RAM) |
| Protocol switching | One flag: --protocol |
Settings menu |
| Multi-platform | macOS, Linux, Windows | macOS, Windows, iOS, Android |
| Mobile support | No | Yes |
| Bulk operations | Script any number of actions | One at a time |
| Output format | Text or JSON (--json) |
Visual only |
When to Use the CLI
You Are a Developer
If you spend most of your day in a terminal, the CLI fits naturally into your workflow. Connect before pushing code, disconnect after. No context switching to a separate app.
freeguard connect --server us-west && git push origin main
You Manage Servers
Headless Linux servers have no graphical environment. The CLI is your only option — and it is a good one. Install, authenticate with email, connect, and set it up as a systemd service that starts on boot.
You Automate Everything
The CLI was built for scripting. Connect on a schedule, rotate servers, check status in monitoring dashboards, integrate into CI/CD pipelines. If you can write a shell script, you can automate your VPN.
# Rotate server every 4 hours
freeguard connect --server "$(freeguard servers --json | jq -r '.[0].id')"
You Use AI Coding Assistants
This is the CLI’s unique advantage. AI agents like Claude Code and Cursor can operate FreeGuard CLI through natural language. Ask your AI to connect, switch servers, or troubleshoot — it handles the commands for you.
You Want Minimal Resource Usage
The CLI process uses roughly 20MB of RAM. No Electron wrapper, no embedded browser, no background UI thread. On resource-constrained environments, this matters.
When to Use the GUI
You Prefer Visual Interfaces
Some people think better with visual feedback. Seeing a server map, clicking a connect button, and watching a status indicator turn green is more intuitive than reading terminal output.
You Are on Mobile
The CLI does not run on iOS or Android. For phones and tablets, the GUI app (or a compatible third-party client) is the way to go.
You Are New to VPN
If you have never used a VPN before, the GUI provides a gentler introduction. Tooltips, visual server lists, and guided setup flows help you get started without learning terminal commands.
You Want One-Click Convenience
Open the app, click connect. That simplicity has value, especially when you just want to browse privately without thinking about flags and arguments.
You Can Use Both
Here is the thing most people miss: you do not have to choose. A single FreeGuard subscription works with both the CLI and GUI clients. Use the GUI on your phone during lunch, then switch to the CLI on your development machine.
Your account, servers, and subscription are the same everywhere. There is no extra cost for using multiple clients.
Recommended Setup for Developers
- Workstation: FreeGuard CLI (fast, scriptable, AI-integrated)
- Phone: FreeGuard GUI or compatible app (Stash, Shadowrocket, sing-box)
- Home server: FreeGuard CLI (headless, runs as a service)
Recommended Setup for General Users
- Laptop: FreeGuard GUI (visual, easy to use)
- Phone: FreeGuard GUI or compatible app
- Occasional scripting: FreeGuard CLI (when you need automation)
Performance Comparison
Both clients use the same underlying VPN engine and connect to the same server infrastructure. The actual VPN tunnel performance is identical. The differences are in client-side overhead:
| Metric | CLI | GUI |
|---|---|---|
| Startup time | <1 second | 2-4 seconds |
| Memory usage | ~20MB | ~100-200MB |
| CPU at idle | Negligible | Low |
| Disk space | ~15MB | ~80-150MB |
For the VPN tunnel itself — throughput, latency, and stability — there is no difference. Both use the same protocol implementations and connect to the same endpoints.
Making the Switch
Already using the GUI and want to try the CLI? The transition is simple:
- Install the CLI (
brew install freeguard/tap/freeguardon macOS) - Log in with the same account (
freeguard login) - Connect (
freeguard connect)
Your existing subscription works immediately. No migration, no extra setup.
Going from CLI to GUI is equally straightforward — download the app, log in with the same credentials, and connect.
Next Steps
- FreeGuard CLI — install and start using the command-line client
- Download GUI apps — graphical clients for all platforms
- Pricing — one subscription for all your devices
Frequently Asked Questions
Should I use FreeGuard CLI or the GUI app?
Use the CLI if you’re comfortable with the terminal, need to run VPN on a server, or want automation. Use the GUI app if you prefer visual controls or are new to VPN.
Can I use both CLI and GUI with the same subscription?
Yes. Your FreeGuard subscription works across all clients — CLI, desktop app, and mobile app. No extra cost.
Is the CLI faster than the GUI app?
Both use the same VPN protocols and servers. The CLI has lower resource usage since it has no graphical overhead, which can matter on constrained devices like VPS instances.
Does the CLI support all features available in the GUI?
The CLI supports all core VPN features: protocol switching, server selection, GeoIP routing, and split tunneling. Some convenience features like traffic visualization are GUI-only.
Last updated: March 2026