RizCraft

RizCraft is a developer-leaning toolkit of 100+ free tools, with no sign-up. Categories cover developer, text, image, audio and video, PDF, web and network, and SEO. Examples include a JSON formatter, hash generator, regex tester, JWT decoder, PDF merger, splitter and editor, image compressor, video trimmer, QR generator and HTTP headers checker.

The page says Free to Use and No Sign-up, and lists no pricing. Web is the primary platform. The site also lists SideDock Desktop, a portable Windows checksum utility, and a Developer Toolkit browser extension.