Abstract Syntax Tree Explorer (Lua, Rust, OCaml, Python, JavaScript etc. etc.)

Posted a few times, sunk into a swamp:

[0] https://news.ycombinator.com/item?id=27420273 (0 comments, 8 days ago)

[1] https://news.ycombinator.com/item?id=25252053 (1 comment, 7 months ago)

[2] https://news.ycombinator.com/item?id=14113293 (0 comments, 4 years ago)

[3] https://news.ycombinator.com/item?id=10286841 (0 comments, 6 years ago)

and

[4] https://news.ycombinator.com/item?id=10111589 (0 comments, 6 years ago)

Despite lack of interest from HN, an amazing service that also allows one to see at a glance where to find a parser library for a particular language.