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Where can I identify an unfamiliar object?

Mystery-object communities, and how they differ on what they accept.

Three communities identify unknown objects from photos. They differ mainly in posting format and in what is off-limits — none of them handle pills or medical questions.

Where to ask

r/whatisthisthing

Best for: Most mystery objects; answers are expected to cite sources.

Why it fits: Its public description: “For the identification of mysterious objects”

Members in our directory: 3.2M

Rules to know before posting:

  • Be detailed in the title and the post.
  • Reply “Solved!” to the earliest correct answer, and do not delete your post.
  • Jokes and unhelpful comments are bannable; no AI-generated answers.
  • Check the Frequently Asked Things list and the submission guidelines first.

Read r/whatisthisthing’s current rules on Reddit

r/Whatisthis

Best for: Objects of unknown make, type or origin, posted as a photo link.

Why it fits: Its public description: “a subreddit for identifying objects of unknown make, type, or origin.”

Rules to know before posting:

  • Link posts only — use a clear photo and put extra details in a comment.
  • Your title must include where the object was found.
  • No valuations or help locating items; no medical items, pills or drugs.
  • If you already know the category (for example a car), ask a specialist community first.

Read r/Whatisthis’s current rules on Reddit

r/whatisit

Best for: A more general “what is this?” question.

Why it fits: Its public description: “Do you know what it is? No, we don't either. Maybe someone does?”

Members in our directory: 2.9M

Rules to know before posting:

  • No medical advice or drug questions.
  • No low-effort posts: informative title, a short description and a decent photo.
  • Mark your post solved or unsolved once you have replies.

Read r/whatisit’s current rules on Reddit

Before you post

  • Photograph every side, plus anything written or stamped on it, next to a common object for scale.
  • Say where you found it and what it is made of.
  • Search any visible words first — the communities ask you to try.

Rule summaries are paraphrased from each community’s published rules (public archive copy retrieved 7 November 2026; original snapshot date unavailable). Current rules may differ — check the community’s rules before posting. A good fit does not guarantee a reply.