Here are some ways to wish Janmashtami in English:

• "Wishing you a very Happy Janmashtami! May Lord Krishna bless you with happiness and prosperity."
• "May Lord Krishna’s blessings fill your life with joy, peace, and success."
• "On this Janmashtami, may Krishna’s divine grace bring joy, prosperity, and happiness to your life."
• "May the divine presence of Lord Krishna fill your heart with devotion, peace, and spiritual bliss. Happy Janmashtami!"
• "Let’s celebrate the birth of the beloved Krishna with joy, devotion, and love in our hearts."
• "May Krishna’s flute fill your life with sweet melodies and happiness."
• "Wishing you a blessed and joyous Krishna Janmashtami. May Krishna’s blessings stay with you always."
• "May Krishna’s love and teachings inspire you towards a life of righteousness and compassion."

These wishes combine blessings, joy, and devotion appropriate for the occasion of Janmashtami in English.