ARC Toolkit - Page-Level Testing - TPGi
Free accessibility testing tool for websites. It would be interesting to test this with published elearning as well.
Accurate AI Transcriptions in Minutes | Powered by Riverside
Free transcriptions and SRT closed captions of audio and video files. My quick test from a Zoom recording looked pretty accurate (maybe more accurate than Zoom's built-in transcription).
Accessible color palette builder
While there are lots of tools for creating color palettes, this is the first one I have seen that so clearly notes the accessibility of different combinations. Even if you create the palette using another tool, you could check it with this free tool to note which colors have sufficient contrast when used together.
Video Caption Generator - Automatic Captions - VEED.IO
Automatically generate captions for videos for free
Web Captioner
Free real-time captions in a browser based tool. I haven't tried this yet, but I'd like to see if it's possible to use with Zoom for live training.