I'll be honest, once I decided I needed a solution, and that browser extensions weren't an option, I didn't really try that hard to find a bookmark alternative as I figured I could create something to do the job fairly quickly.
The first version of FormFiller was written in about 30 minutes over the course of 2 lunch breaks and it did what I needed it to (though not very elegantly. It send the generated JS bookmark code to a php script which saved it to a file which was then loaded in the created bookmarklet. Caused issues with https though :( )
Also, because I originally made it for use at my day job, there were some special use cases that I hard coded in.
Once I'd got to that point, the thought of looking for existing solutions didn't cross my mind.
Now, to answer your question, having looked at the project you linked, I would say that there are only a few differences (at the moment).
1) While they are both open source, FormFiller is on GitHub and therefore I feel it's a bit easier for people to access the source code and potentially contribute.
2) The FormFiller save bookmarklet loads the code from https://rawgit.com/wearecontrast/FormFiller/master/src/FormF.... What this means is that when I update FormFiller with new features, everyone gets upgraded without having to create a new Save bookmarklet. (This doesn't update the generated bookmarklets though. Anyone wanted to take advantage of a new feature can just use their current bookmarklet to populate the form, then save again using the automatically updated Save bookmarklet. The benefit of this is, if your generated bookmarklet works now, it will always work regardless of any features added/removed in the future)
3) When you click the FormFiller bookmark to save a form, you are presented with a modal window. Currently, the only thing you can do on this window is change the name of the link (and thus the name of your bookmark). The plan going forward is to re-implement some of the functionality I need at work. This means being able to select certain fields to have random values inserted, and also having fields have calculated values inserted. for example, random characters in the name fields, and always inserting the current date (or +3 days) into a date field.
4) The only other difference I could see was that FormFiller does not split up the generated bookmarklets for multiple forms on the page. I'm not sure if this is better or worse though?
Thanks for the comment and I hope that gives a bit of insight into where I'm planning on taking FormFiller. If you end up giving FormFiller a try then feedback is always appreciated :D
Thanks for the notes, will definitely take them on board.
Auto-submit is probably going to be the first feature that gets added. I currently have a separate bookmarklet for it, but it's much easier if it's just part of the generated bookmarklet.
The question wasn't whether or not comics is a dying art form. The question is if Bill Watterson BELIEVES that it is, with the suggestion that he might believe so because he possibly doesn't like computers very much and therefore might not be fully aware of web comic artists.
Blame the users and Apple. Users for thinking for some reason an app is automatically superior. Apple for having no incentive to make users think otherwise. It greatly annoyed me how apple let their webapps directory rot until they finally removed it. For those that don't remember, webapps were the only apps when the iPhone first came out.
You might want to look into coworking spaces where people that are not working for the same company, such as freelancers or remote workers, share an office.
Where might I look for something like this? Is there a centralized location, or is this the sort of thing that people just kinda find on Craigslist or something?
It is the first hit in Google for 'form filler bookmarklet'.
Any noteworthy differences between yours and that? (Honest question, no snark intended.)