Most "free" online tools aren't: three uses per day, a watermark across your download, or a sign-up wall right before the result. That's usually because every click costs the operator money: they rent AI computing power per second from a cloud provider.
Shinobi Tools works differently: everything runs on our own hardware. Once the machine is paid for, one more restored photo or split song costs close to nothing. That's the whole trick, and the reason the tools are designed to stay genuinely free, supported by nothing more than the advertising on the pages.
The metadata remover runs on its own page here on shinobitools.com. The other tools each have their own site: PicReviver (restore old photos), BGNinja (remove photo backgrounds), StemGrab (split songs into stems), PassportNinja (passport photos), ScribeGrab (transcription & subtitles), VideoBGNinja (video background removal) and ScanReviver (clean document scans).
A small independent team in the Netherlands: no VC, no growth targets, just a fast machine and a list of tools we think should exist for free. Suggestions for the next one are always welcome via the contact form.