Trim Mesh Free Blender Add-on
Trim Mesh is a small tool for trimming the mesh quickly. You can select vertice / edge / face to trim it by its normal.
You can change the “Tilt Angle” to shift the cutting angle easily.
Also you can change the Direction of the Tilt.
You can trim the convex part of the mesh easily without affecting other part.
You can download it from here: https://kushiro.gumroad.com/l/trim_mesh