At the time of writing, there are many software packages that allow the generation of plasmid maps. However, these software requires actual DNA sequence to draw the map. In many cases, the actual sequence of the full plasmid is not known or unimportant. The market lacks a program that helps to produce a stylish plasmid map quickly.Freewares currently available from the Internet are either buggy, lacks in feature, bloated, requires Internet connection or needs to sign up.

This program is written aiming to fill the gap of plasmid drawing tools. This program is javascript-based and it can be run in a browser without Internet connection. No installation is needed and you may just treat it as a web page on your local computer. The program have been carefully debugged in order to deliver as many feature as possible while keeping bugs minimium.


Flexi Plasmid Draw is available in 3 versions, Basic, Deluxe and 2017. The Basic version allows the generation of a plasmid map quickly with few options. This version can run in both Internet Explorer and Firefox browsers. A drawback of this program is that it gives SVG code with no preview function. The Deluxe and 2017 versions on the other hand has a preview function allowing you to view the image represents by the SVG codes. However, the Deluxe and 2017 version cannot run in OLD Internet Explorer. The Deluxe and 2017 versions also allow a much finer degree of control over the appearance of the plasmid map.

All versions gives SVG code as output. Though you can view the SVG as image directly in any mordern browsers, you'll need another program (or EDGE browser on Win10) to save the SVG as *.EMF or *.PNG for use with other applications. You may download the freeware 'InkScape' for further editing and exporting the SVG file.

Note that SVG is a vector-graphics format. In other words, the image may be magnified without losing quality.

Program entry point

Flexi PlasmidDraw 2017 updated version

Basic version (For REAL OLD Browsers)

Deluxe version (For OLD Browsers)

Source Code, Bug report, Pull request

All the code is now on GitHub. Please file your bug report via GitHub if you have an account there.


Though this program is released as freeware, please help the poor developer by making a donation or offering a job. Thank you.