Flash Internet Download
Free for everyone

Flash Internet

Network Optimizer & Diagnostics for Windows

เครื่องมือฟรีสำหรับตรวจสอบและปรับแต่งเครือข่ายบน Windows — วัดความเร็ว ตรวจสอบ Ping ดู Traffic แบบเรียลไทม์ เปรียบเทียบ DNS และจัดการค่า TCP/IP / QoS พร้อมคืนค่าเดิมได้

Measure connection performance, monitor traffic in real time, review supported TCP/IP settings, configure application QoS, and compare public DNS resolvers — all from one clean Windows app. Supported tweaks can be restored to Windows defaults.

Windows 10 / 11 (64-bit)| Free| No ads| Optional anonymous telemetry
Flash Internet
DashboardSpeed TestDNS TCP/IP BoostQoSMini MonitorSettings
Network OverviewRunning normally
Download486.2 Mbps
Upload312.8 Mbps
Ping12 ms
Live TrafficDownloadUpload
60 seconds428 Mbps286 Mbps
Network AdapterRealtek Gaming 2.5GbE Family ControllerChange
A faster, smoother
internet experience

Features

Everything you need for a better connection

Useful diagnostics, clear controls and measurable before/after results.

Real-time Network Monitor

Live download / upload speeds with a compact floating mini monitor.

Ping Monitor

Track latency continuously and spot unstable or congested connections faster.

Speed Test

Measure download, upload and latency so you can compare network changes with real numbers.

DNS Tools

Compare public DNS resolver latency and apply the resolver you prefer with one click.

TCP/IP Optimization

Review and apply supported Windows TCP/IP tuning options without claiming impossible ISP-side speed gains.

QoS Priority

Apply DSCP markings to selected apps where your Windows/network environment supports QoS handling.

Mini Traffic Monitor

Always-on-top desktop widget with draggable position and compact mode.

Restore Network Settings

Restore supported Flash Internet tweaks back to Windows defaults when you want to undo changes.

Windows Network Tools

Free network optimizer, Speed Test & Ping Monitor for Windows 10/11

Flash Internet combines network diagnostics and Windows-side tuning tools in one free app. Use it to measure your internet connection, monitor Ping and live traffic, compare public DNS resolvers, review supported TCP/IP settings and configure application QoS without jumping between multiple utilities.

โปรแกรมวัดความเร็วเน็ตและตรวจสอบ Ping บน Windows

เช็ก Download, Upload และ Ping เพื่อดูสภาพการเชื่อมต่อจริงก่อนปรับค่า พร้อมดู Traffic แบบเรียลไทม์ เหมาะสำหรับคนที่ต้องการตรวจสอบว่าเน็ตช้า, Ping สูง หรือการเชื่อมต่อไม่นิ่งเกิดขึ้นช่วงไหน

DNS, TCP/IP และ QoS อยู่ในโปรแกรมเดียว

เปรียบเทียบ DNS เช่น Cloudflare, Google Public DNS, Quad9 และ OpenDNS แล้วเลือกใช้ตัวที่เหมาะกับเครือข่ายของคุณ พร้อมเครื่องมือสำหรับค่า TCP/IP และ QoS ที่ Flash Internet รองรับ และสามารถคืนค่าที่โปรแกรมแก้ไขกลับเป็นค่า Windows ได้

ช่วยตรวจปัญหาเน็ตหน่วงและ Ping เกมแกว่งได้ง่ายขึ้น

Flash Internet ช่วยวัดและเปรียบเทียบผลก่อนกับหลังการปรับแต่ง เพื่อดูว่าค่าที่เปลี่ยนช่วยกับเครื่องและเครือข่ายของคุณจริงหรือไม่ โปรแกรมไม่สามารถเปลี่ยนเส้นทาง ISP หรือรับประกันว่า Ping จะลดลงทุกเกมหรือทุกเซิร์ฟเวอร์

How it works

Test. Tune. Compare.

See your current connection, try the settings that fit your network, then compare the result.

01

Test your connection

Check download, upload, Ping and live traffic to get a clear starting point.

02

Tune what you need

Try DNS, TCP/IP or QoS tools without changing unrelated settings.

03

Compare the result

Run the test again and keep the settings that work best for your connection.

Good to know: Results vary by PC, router, ISP and server route. Flash Internet optimizes supported Windows-side settings; it does not change the speed limit of your internet plan.
5+Downloads
6+Installations
6+Active in last 7 days
100%Free to use
Built to help you
test, tune and compare.

Screenshots

Clean, modern and easy to use

A simple interface with powerful tools.

Flash Internet
486.9Mbps
312.8Mbps
12ms
DashboardReal-time network information at a glance.
Flash Internet
928.4Mbps
Downloaded 928.4 Mbps
Uploaded 283.1 Mbps
Speed TestMeasure download, upload and latency before and after changes.
Flash Internet
Cloudflare1.1.1.1
Google8.8.8.8
Quad99.9.9.9
OpenDNS208.67.222.222
DNS ToolsCompare third-party public DNS resolvers by response time.

Public DNS names shown above are third-party services for comparison. Flash Internet is not affiliated with or endorsed by Google, Cloudflare, Quad9 or OpenDNS.

FAQ

Questions people ask

Will Flash Internet make my internet faster?

Sometimes it can improve responsiveness, stability or throughput when Windows settings are not ideal, but there is no universal speed boost. It cannot increase the speed cap of your ISP package or fix congestion outside your PC.

Can it reduce Ping in games?

It may help in specific cases involving local PC settings or background traffic, but it cannot control the route between your ISP and the game server. Lower Ping is therefore not guaranteed.

Does a faster DNS increase download speed?

No. DNS mainly affects how quickly domain names are resolved. A faster resolver can make some websites start loading sooner, but it does not increase your subscribed bandwidth.

Can I undo the TCP/IP changes?

Yes. Flash Internet includes a restore function for the supported settings it changes. Enterprise policies, VPN software or third-party network tools may still override Windows settings.

Does Flash Internet inspect what websites I visit?

No. The app telemetry is designed around anonymous installation and feature events, not browsing history, URLs, DNS query history or packet contents. App telemetry is optional.

Does the website use analytics?

Only if you allow it. The website can use Google Analytics to understand general site usage. It is separate from Flash Internet app telemetry, and declining website analytics does not block downloads or app features.

Is Flash Internet affiliated with Google, Microsoft or the DNS providers shown in the app?

No. Names such as Google Public DNS, Cloudflare, Quad9, OpenDNS and Windows are used only to identify compatible third-party services or platforms. Their trademarks belong to their respective owners.

Ready to get started?

Download Flash Internet now

Free to use. No ads. Supported network changes are reversible.

Download v1.4 Windows 10 / 11 (64-bit)