Haven't posted on this subreddit before but I'm a massive astro-nerd. I got out of my astrophysics degree at uni a few years ago and have been itching to get back into the field for a long while. So I made a lil' tool as a start!
I introduce to you: Destro!
It's a workstation for interactive line-profile fitting and exoplanet light-curve modelling. The webpage lets you model and generate figures from your astronomical data without the need for any extra python stuff.
Destro's got a bunch of fun features like spectral multi-line fitting, draggable curves, nested-disk geometric modelling with limb-darkening. Levenberg-Marquardt optimisation (which is just scipy's curve-fit in disguise), and a Markov Chain Monte Carlo sampler for uncertainties. When you're done with your plots, you can export the python code needed to reproduce the plot also a pre-formatted LaTeX table from your derived metrics.
Destro's can ingest your raw astronomical data in all the standard file types (.fits, .fit, or .csv). It does a lot of pre-processing for you! For example, the columns from your fits binary table or csv are auto-extracted into conventional axes.
Hope you enjoy! It's fully free and I intend to keep it that way because I believe no scientific knowledge should ever be gatekeeped. Have fun!