What file types are not supported?

Last updated: March 24, 2026

Pylon blocks uploads of file types that pose a security risk. Uploads matching these extensions or content signatures are rejected.

Blocked file types

	CategoryExtensions
Windows executables	`.exe`, `.dll`, `.scr`, `.com`, `.msi`, `.lnk`, `.pif`
Windows scripts	`.bat`, `.cmd`
VBScript / JavaScript	`.vbs`, `.vbe`, `.js`, `.jse`
Windows Script Host	`.ws`, `.wsf`, `.wsc`, `.wsh`
PowerShell	`.ps1`, `.ps1xml`, `.ps2`, `.ps2xml`, `.psc1`, `.psc2`
Legacy shell scripts	`.msh`, `.msh1`, `.msh2`, `.mshxml`, `.msh1xml`, `.msh2xml`
Windows system files	`.reg`, `.inf`, `.scf`, `.hta`
Web markup	`.svg`, `.xhtml`, `.mht`, `.mhtml`, `.xml`

Avatars accept PNG, JPEG, GIF, and WebP only. Images must be square.