No. GoodbyeDPI only modifies the very first packet of each TLS connection. Your download speed, upload speed, and ping are unaffected.

No. Games primarily use UDP, which GoodbyeDPI doesn't touch. Even games using TCP see no measurable impact.

Yes. All traffic flows normally — only the initial handshake is modified.

Yes. GoodByeDPI GUI is MIT-licensed open source, permanently free.

If it helps you, consider supporting the project 💝

No. The app runs entirely on your machine. There are:

• ❌ No analytics
• ❌ No telemetry
• ❌ No servers
• ❌ No logs sent anywhere

The only network request is the update check (a GET to GitHub's releases page).

No. GoodbyeDPI is not a VPN. Your ISP still sees your IP — they just can't filter by content anymore.

Possibly. But GoodbyeDPI's traffic modifications are designed to look like normal fragmented TLS traffic — indistinguishable from legitimate network behavior.

This tool is provided for educational and personal use. Legality depends on your country. Check your local laws.

TL;DR: GoodbyeDPI is lighter, faster, and free — but doesn't hide your IP.

Technically yes, but it's usually unnecessary. If the VPN already bypasses filtering, stop GoodbyeDPI to save resources.

If your VPN doesn't bypass DPI (rare), running both may help — but they can also conflict.

See Modes Explained. Short version:

• ⚡ Fast — reverse fragmentation + fake SEQ (aggressive)
• 🛡 Compatible — auto-TTL (gentler)

No. Only Windows 10 and Windows 11 are officially supported. Older versions lack required APIs.

No. GoodbyeDPI is a Windows-only tool — it uses the WinDivert driver, which is Windows-specific.

Sometimes. Requires:

• ✅ Bridged network (not NAT)
• ✅ Admin privileges
• ✅ Host to allow WinDivert access

VM support isn't officially tested.

No. The released EXE is fully self-contained. Python is only needed if you're building from source.

Not necessarily. Close the window and choose Minimize to Tray — the app keeps running in the background.

But you do need the app running for GoodbyeDPI to work. It's the launcher.

No. The app launches and controls goodbyedpi.exe. Close the app → the process is killed → DPI filtering resumes.

For persistent bypass, enable Run on Windows startup.

Start with ⚡ Fast. If it works, you're done. If not, try 🛡 Compatible. If neither works, go 🔧 Custom.

See Modes Explained for a flowchart.

An Exit Options dialog appears:

Start with the Arguments Guide (the ? button). If you want ready-made combos, see Custom Arguments.

The live validator found something suspicious:

• 🟡 Yellow ⚠ — warning (still runs)
• 🔴 Red ✕ — error (will warn before starting)

Hover over the indicator to see details.

Not yet — this feature is planned for a future version. For now, copy your args to a text file.

Automatic: The app checks on every launch.

Manual: Click 🔄 Check for updates at the bottom-left.

If a new version exists, an Update dialog appears with a Download button.

No. Currently you download the new EXE and replace the old one. Self-updating is planned for a future version.

Irregularly. When there are meaningful improvements or bug fixes. Watch the repo for notifications:

👁 Watch releases

Absolutely! See:

• Contributing guide
• Architecture for code structure
• Build from Source to test locally

Open an issue with:

• Windows version
• App version
• Steps to reproduce
• Log output (Copy button)
• Screenshots if helpful

Yes! Open a discussion or an issue with the enhancement label.

Already on the roadmap:

• Self-updater (in-app download & replace)
• Named profile presets
• Quick connection test
• Advanced mode picker
• Single instance lock
• Keyboard shortcuts

• ⭐ Star the repo — helps others find it
• 🐛 Report bugs — improves quality
• 📢 Share with friends — grows the community
• 💝 Donate — fuels development