TightVNC

TightVNC is a free, open-source remote desktop tool for seamless cross-platform access and control over networks. Run the server on a remote machine and connect via viewer to interact with its screen using your mouse and keyboard. Key features include efficient compression, multiple encodings like ZRLE and JPEG, session sharing, dual passwords (full-control and read-only), IP restrictions, and Java viewer support for broad compatibility on Windows, Linux, and more.

Founded in	2000
Location	🇷🇺 Russia
Founders	Konstantin Kucherov

Features

Plans

Free Edition

◈Remote desktop access, compression (ZRLE/JPEG), file transfer, cross-platform (Windows/Linux), Java viewer, password auth

Source Code License

$12,000 (one-time)

◈Full source integration rights, 1-year email support; annual maintenance $2,400

Remote Core SDK (.NET/Java)

Custom quote

◈Embed VNC viewer in apps, .NET 6/5 support, file transfer controls; trial available

MightyViewer

Paid

◈Monitoring mode, dark mode, multi-monitor; site/unlimited licenses phasing out

Refund Policy

TightVNC has no refund policy, as it is free open-source software under GPL license with no warranty provided.

Ratings

Ai Opinion

✦

AI Rating(3.5/5)

TightVNC is praised for being free, lightweight, easy to use, and effective on low-bandwidth or older hardware with good compression and cross-platform support. Users dislike the lack of built-in encryption, high latency on slower connections, poor official support, and missing advanced features like chat or audio.

Expert Opinion

✎

Expert Rating(4.2/5)

I recently tested TightVNC, a free remote desktop tool, and here's my honest feedback from hands-on use. TightVNC shines for its lightweight setup and cross-platform support on Windows, Linux, and more. I installed the server on a remote PC and connected via viewer effortlessly, controlling the screen with low bandwidth thanks to advanced compression like ZRLE and JPEG. It worked smoothly over LAN and even internet with tweaks. The Java viewer lets you access via any web browser, no extra software needed, which saved me time on new machines. Features like dual passwords for full or view-only access and file transfer added real value during tests. Performance impressed me on slower connections. It's perfect for IT admins or personal remote needs, fully free under GPL. My only gripe: lacks mobile apps and polished UI compared to paid rivals.