We run a small set of free web tools that work in the browser. No sign-up, no watermark. This is a short list of what is there and when each one helps.

Photos

  • BGNinja: remove the background from a photo and download a transparent PNG.
  • PicReviver: bring an old, scratched or faded photo back.
  • PassportNinja: crop and size a photo for a passport or ID.

Audio

  • StemGrab: split a song into vocals and instruments, useful for karaoke or remixes.
  • ScribeGrab: turn a recording into text with timestamps and subtitles.

Video and documents

  • VideoBGNinja: cut the background out of a short video.
  • ScanReviver: clean up a scanned page so it is readable again.

Everything is also listed on one page: shinobitools.com. If a tool is missing something you need, tell me in the comments and I will look at it.