I ve been building a simple tool to help manage 301 redirects during site migrations. It s not an auto-mapper the focus is on advanced filtering and bulk mapping so you can update large sets of URLs more efficiently.
Right now it supports CSV input/output, and lets you manually map URLs in batches (great for cases like /old-folder/** to /new-folder/**).
If this sounds useful, I d love your feedback especially if you ve dealt with messy migrations. I ve got more feature ideas, but I m looking to see if this is valuable to others before adding more.