Roll your own

Even simpler it just takes screenshots (or at least that's what it was doing last time I used it)

> In complex systems, such as the human body, the only evidence of safety is time -- a very long time. The Stevia plant (though not the same as extract) has been used for centuries. Aspartame was (accidentally) created in the lab in 1965.

Time is not evidence of safety, that is an odd claim (see smoking tobacco), thankfully we have the scientific method to investigate hypotheses like "x is bad for you".

This is an example of the "appeal to nature" logical fallacy. You may be able to make a case that Stevia is healthier than Aspartame, but it should be based on evidence to that effect rather than because you like the idea that it has ingredients derived from organic material.

In the bioinformatics sphere there is this MIT-licensed Stack Exchange clone: https://github.com/ialbert/biostar-central