noVNC: HTML VNC Client Library and Application
Many companies, projects and products have integrated noVNC including OpenStack, OpenNebula, LibVNCServer, and ThinLinc. See the Projects and Companies wiki page for a more complete list with additional info and links.
Table of Contents
- Browser Requirements
- Server Requirements
- Quick Start
- Integration and Deployment
If you are a noVNC developer/integrator/user (or want to be) please join the noVNC discussion group.
If you want to show appreciation for noVNC you could donate to a great non- profits such as: Compassion International, SIL, Habitat for Humanity, Electronic Frontier Foundation, Against Malaria Foundation, Nothing But Nets, etc. Please tweet @noVNC if you do.
- Supports all modern browsers including mobile (iOS, Android)
- Supported VNC encodings: raw, copyrect, rre, hextile, tight, tightPNG
- Supports scaling, clipping and resizing the desktop
- Local cursor rendering
- Clipboard copy/paste
- Licensed mainly under the MPL 2.0, see the license document for details
Running in Firefox before and after connecting:
See more screenshots here.
noVNC uses many modern web technologies so a formal requirement list is not available. However these are the minimum versions we are currently aware of:
- Chrome 49, Firefox 44, Safari 10, Opera 36, IE 11, Edge 12
noVNC follows the standard VNC protocol, but unlike other VNC clients it does require WebSockets support. Many servers include support (e.g. x11vnc/libvncserver, QEMU, and MobileVNC), but for the others you need to use a WebSockets to TCP socket proxy. noVNC has a sister project websockify that provides a simple such proxy.
Use the launch script to automatically download and start websockify, which includes a mini-webserver and the WebSockets proxy. The
--vncoption is used to specify the location of a running VNC server:
./utils/launch.sh --vnc localhost:5901
Point your browser to the cut-and-paste URL that is output by the launch script. Hit the Connect button, enter a password if the VNC server has one configured, and enjoy!
Integration and Deployment
Please see our other documents for how to integrate noVNC in your own software, or deploying the noVNC application in production environments:
- UI and Icons : Pierre Ossman, Chris Gordon
- Original Logo : Michael Sersen
- tight encoding : Michael Tinglof (Mercuri.ca)
- base64 : Martijn Pieters (Digital Creations 2), Samuel Sieb (sieb.net)
- DES : Dave Zimmerman (Widget Workshop), Jef Poskanzer (ACME Labs)
- Pako : Vitaly Puzrin (https://github.com/nodeca/pako)
Do you want to be on this list? Check out our contribution guide and start hacking!