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We offer a full-featured, unrestricted copy of AMPL with a trial license good for 30 days. If you are evaluating AMPL for purchase or for use in the AMPL for Courses program, request a trial by scrolling down to our online trial request form on this page. If you are a student then see instead our AMPL for Students page and the trial form there.

You can include any or all of the solvers we sell as part of your 30-day trial:

  • Linear solvers offer exceptional efficiency for linear and convex quadratic optimization problems in both continuous and integer variables, with extensions to related problem types:
  • Nonlinear solvers apply a variety of methods to find locally optimal solutions to problems involving smooth nonlinear functions:
    • CONOPT, MINOS, SNOPT for problems in continuous variables
    • KNITRO for problems in continuous and/or integer variables
  • Alternative solvers combine a variety of approaches to handle optimization problems that can be especially difficult:
    • BARON for global optimization in continuous and integer variables
    • LGO for global and local optimization in continuous variables
    • LocalSolver for fast high-quality solutions with numerical and combinatorial constraints

The AMPL 30-day trial also works with any other solver that has an AMPL interface. A range of free solvers for AMPL are available for download from our open-source solvers page. Trial versions of additional solvers may be obtained from their developers; links to further information are provided in our complete solver list for AMPL.

Other Trial Options

Run some simple AMPL models online through our Try AMPL Online page.

Download a permanent “demo” version of AMPL limited to 300 variables and 300 constraints plus objectives, after presolve — 500 for linear problems — by following the instructions on our Download a Demo Version page. Versions of some solvers are also included.

Run larger problems online using some of the many solvers available through the NEOS Server. Send AMPL model, data, and script files to be run online with the solvers, or use a local copy of AMPL to run online solvers through NEOS’s Kestrel interface.

If you are teaching a class, you may request time-limited but otherwise unrestricted bundles for distribution to students, through the AMPL for Courses program. Special arrangements for demonstrations and workshops are also available; write to or call +1 773-336-AMPL to discuss possibilities.

30-Day Free Trial Request Form

Students please see our AMPL for Students page and use the form there instead.

To begin, go to our Fingerprint Instructions page (which will open in a new tab) to get an AMPL "fingerprint" string that describes your computer.

Then return to this form and paste the fingerprint string here:*

Complete your request by filling out the following fields and clicking Submit at the bottom of the form:

First Name:*
Last Name:*
Job title or position:*
Full name of your
company or university:*
Department (if any) within your
company or university:
Solvers to include with your trial:* BARON CONOPT CPLEX Gurobi KNITRO LGO LocalSolv MINOS SNOPT Xpress
Please tell us how you plan to use your AMPL trial.*
(Also describe any special requirements here.)

  I agree to the Terms & Conditions governing this free trial of AMPL products

* Required fields.