Found it for JSON formatting, ended up using the PDF stuff more. I paste a lot of JSON into random formatter sites and quietly hope nobody's logging it. This one runs in the tab, so that goes away.
Also used the image compressor a few times for those forms with a 200KB limit. Fine, did what it said.
No account, no watermark, no "you've used your 2 free files today." That's most of what I want.