Since the summer 2011 the license to use J-Express Pro is free of charge. You will still need a license to use J-Express. You can create your own license by filling in this form:

Create License

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Key = 1538645


Academic license (non-profit research)
Commercial license (for-profit research)


A J-Express license is a personal license that you use on any computer running J-Express by you. Our motivation for having a license is that we want to register active use of J-Express, which may be important for future funding. A license is valied for 1 year. All licenses except the site licenses are personal meaning that you are responsible for not letting anyone else use J-Express with that license.