I have a mirror with a

[fruitsalad]

Picture on which I would like to hang on the wall it's doesn't have a frame and I don't really want to put it in a frame but was wondering if I don't I won't be able to hang it on the wall or is there a way I could hang it up without a frame

[The Builder]

Several ways Fruity. It could be drilled, and fixed with small screws.
There are also some little unobtrusive corner brackets that would hold it in place.

Showing no fixings at all would be best. Just glue it with a "grab" adhesive (Gripfill type), or silicone sealant (prop it in place overnight while the silicone goes off.) You may have to scratch some wall paint off first as the glue might just pull the paint off.

For minimum mess on your wall, screw a piece of thin board to the wall and stick the mirror to that.

[fruitsalad]

Thank you TB great help

[The Builder]

If any of that worries you, or maybe the mirror is fairly big and heavy. Look in the DIY stores for aluminium "angle"............ about 20mm x 20mm.

Drill it and screw to to the wall with one flange up behind the mirror... plus a couple of big dabs of glue near the top to stop it falling forward.

[Old_Geezer]

Beware the drill and fix with screws. Going back about 30 years I was asked to fix my sister's mirror like that. Put it up, realised it was not tight to the wall and said, "Should I give it another half turn just to be sure ?". "Yes". CRACK.