Birthday Thank You Note Generator
It's the day after the party and you have 15 thank you notes to write. This generator creates personalized messages for each guest — mention the gift, the party moment, and a genuine thank you. Takes 30 seconds each instead of 30 minutes staring at a blank card.
Written by Baljeet Aulakh | Last updated February 2026
Quick Answer
A birthday party thank you note should thank the guest for attending, mention the specific gift they brought, and close with warmth. Keep it 2-4 sentences. Send within 1-2 weeks of the party. Use the free generator below to create personalized notes for every guest in seconds.
- 2-4
- Sentences
- 1-2 wk
- Send Within
- 4
- Tone Options
- $0
- Tool Cost
Which Thank You Note Tone Should You Use?
Make the Whole Party Memorable
Thank you notes are the finishing touch. But the memories start with the party itself. A free Party Genius plan creates a celebration worth thanking people for — themed activities, food, and more.
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Pro Tip
Send thank you notes within 1 week of the party. Kids over 5 should write (or draw) something themselves — even just their name. The secret: take a photo of each kid with their gift AT the party. Attach it to the thank you note. Parents love this and it takes 10 seconds per kid.