diff --git a/Userland/Libraries/LibGL/GL/gl.h b/Userland/Libraries/LibGL/GL/gl.h
index d4251f26a2..04e850b2d4 100644
--- a/Userland/Libraries/LibGL/GL/gl.h
+++ b/Userland/Libraries/LibGL/GL/gl.h
@@ -552,6 +552,7 @@ GLAPI void glTexParameterf(GLenum target, GLenum pname, GLfloat param);
 GLAPI void glTexEnvf(GLenum target, GLenum pname, GLfloat param);
 GLAPI void glTexEnvi(GLenum target, GLenum pname, GLint param);
 GLAPI void glBindTexture(GLenum target, GLuint texture);
+GLAPI GLboolean glIsTexture(GLuint texture);
 GLAPI void glActiveTexture(GLenum texture);
 GLAPI void glGetBooleanv(GLenum pname, GLboolean* data);
 GLAPI void glGetDoublev(GLenum pname, GLdouble* params);
diff --git a/Userland/Libraries/LibGL/GLContext.h b/Userland/Libraries/LibGL/GLContext.h
index 42b93fe998..e33eeb6b5d 100644
--- a/Userland/Libraries/LibGL/GLContext.h
+++ b/Userland/Libraries/LibGL/GLContext.h
@@ -71,6 +71,7 @@ public:
     virtual void gl_tex_coord(GLfloat s, GLfloat t, GLfloat r, GLfloat q) = 0;
     virtual void gl_tex_env(GLenum target, GLenum pname, GLfloat param) = 0;
     virtual void gl_bind_texture(GLenum target, GLuint texture) = 0;
+    virtual GLboolean gl_is_texture(GLuint texture) = 0;
     virtual void gl_active_texture(GLenum texture) = 0;
     virtual void gl_depth_mask(GLboolean flag) = 0;
     virtual void gl_enable_client_state(GLenum cap) = 0;
diff --git a/Userland/Libraries/LibGL/GLTexture.cpp b/Userland/Libraries/LibGL/GLTexture.cpp
index 181a6c140a..7b4e40f9eb 100644
--- a/Userland/Libraries/LibGL/GLTexture.cpp
+++ b/Userland/Libraries/LibGL/GLTexture.cpp
@@ -47,6 +47,11 @@ void glBindTexture(GLenum target, GLuint texture)
     g_gl_context->gl_bind_texture(target, texture);
 }
 
+GLboolean glIsTexture(GLuint texture)
+{
+    return g_gl_context->gl_is_texture(texture);
+}
+
 // Note: This is an _extremely_ misleading API name. This sets the active
 // texture unit, NOT the active texture itself...
 void glActiveTexture(GLenum texture)
diff --git a/Userland/Libraries/LibGL/SoftwareGLContext.cpp b/Userland/Libraries/LibGL/SoftwareGLContext.cpp
index 9aa756796e..34ab226d7d 100644
--- a/Userland/Libraries/LibGL/SoftwareGLContext.cpp
+++ b/Userland/Libraries/LibGL/SoftwareGLContext.cpp
@@ -1801,6 +1801,20 @@ void SoftwareGLContext::gl_bind_texture(GLenum target, GLuint texture)
     m_sampler_config_is_dirty = true;
 }
 
+GLboolean SoftwareGLContext::gl_is_texture(GLuint texture)
+{
+    RETURN_VALUE_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION, GL_FALSE);
+
+    if (texture == 0)
+        return GL_FALSE;
+
+    auto it = m_allocated_textures.find(texture);
+    if (it == m_allocated_textures.end())
+        return GL_FALSE;
+
+    return it->value.is_null() ? GL_FALSE : GL_TRUE;
+}
+
 void SoftwareGLContext::gl_active_texture(GLenum texture)
 {
     RETURN_WITH_ERROR_IF(texture < GL_TEXTURE0 || texture > GL_TEXTURE31, GL_INVALID_ENUM);
diff --git a/Userland/Libraries/LibGL/SoftwareGLContext.h b/Userland/Libraries/LibGL/SoftwareGLContext.h
index b8d9900a4e..06de61a85a 100644
--- a/Userland/Libraries/LibGL/SoftwareGLContext.h
+++ b/Userland/Libraries/LibGL/SoftwareGLContext.h
@@ -102,6 +102,7 @@ public:
     virtual void gl_tex_coord(GLfloat s, GLfloat t, GLfloat r, GLfloat q) override;
     virtual void gl_tex_env(GLenum target, GLenum pname, GLfloat param) override;
     virtual void gl_bind_texture(GLenum target, GLuint texture) override;
+    virtual GLboolean gl_is_texture(GLuint texture) override;
     virtual void gl_active_texture(GLenum texture) override;
     virtual void gl_depth_mask(GLboolean flag) override;
     virtual void gl_enable_client_state(GLenum cap) override;