Curve Fit BenchFree for science. Licensed for scale.
Students and researchers use Curve Fit Bench free, forever. Labs, facilities and companies that need more — support, custom models, or the right to build on it — keep the project alive.
Free
The complete bench for personal, academic and teaching use.
- Every model and the adaptive decomposition
- Explorer, plot editor, PNG & PDF export
- Use results in papers and theses, with citation
- Help and bug fixes by email
Lab licence
For groups that fit data every week and want it to fit their workflow.
- Priority model requests for your group
- Readers for your instruments' file formats
- A lab-branded offline copy for your group
- Direct email support
- Your group acknowledged as a supporter
Commercial
The free licence forbids modifying, embedding or hosting the bench. This one allows it.
- Modify and embed in your software or instrument
- Host for your customers, white-label option
- Integration help and a maintenance contract
- Commercial use of results without restriction
Custom work
A model, a dataset or a workshop, scoped to what you need.
- New physical models, verified on synthetic data
- Fitting and statistics consultation on your data
- Half- or full-day workshops for departments
- Course versions with your own sample sets
Prices are quoted in INR, USD or EUR to suit your institution, and invoices can be issued for grant or purchase-order payment.
Not buying a licence? Sponsor the next model.
A monthly sponsorship, of any size, directly funds new models, verification against synthetic data and keeping the bench free for students. Institutional sponsors are listed on this site and in the app.
Before you write to us
Is the free version limited in any way?
No. The free bench has every model, the adaptive decomposition, the explorer and export. Paid plans add support, custom work and rights the free licence does not grant — not features taken away from the free one.
Can I publish results obtained with the free version?
Yes — in papers, theses and reports. Please cite Curve Fit Bench; see how to cite.
Our company wants to use it internally. Do we need a licence?
Using the unmodified bench to analyse your own data is allowed. You need a commercial licence to modify it, build it into a product or instrument, host it for others or sell it.
Does any of our data reach you?
No. The bench runs entirely in the browser; nothing is uploaded, with any plan. For custom work you choose what to share.
How long does a custom model take?
It depends on the model: a closed-form expression is quick, a model that needs its own numerical solver takes longer. Every quote includes a timeline, and every model is verified on synthetic data with known parameters before delivery.
Can we pay from a grant or with a purchase order?
Yes. We issue quotes and invoices suitable for grant accounts and institutional purchase orders.