Available now · Mac only

Their last messages deserve
more than a screen.

Threadkeeper exports iMessage conversations to beautiful, permanent PDFs — on your Mac, in minutes, nothing leaves your device.

Your conversations never leave your Mac
Get Threadkeeper

$24.99 · one-time payment · Mac only

Threadkeeper-Mum-2019-2024.pdf
In Memory
Mum & me
A conversation worth keeping forever
3 June 2019 – 14 November 2024
12,847 total
6,201 from me
6,646 from Mum
— The most precious things in life aren't things. —
Thursday, 14 November 2024
me · 9:14 AM
Morning Mum! Thinking of you today 💜
Mum · 9:31 AM
Good morning my darling. I'm so proud of you.
me · 9:33 AM
Love you to the moon 🌙
Privacy first

Your messages never leave your Mac.

Threadkeeper reads directly from your Mac's Messages database. No servers. No cloud. No accounts. Everything stays on your device.

🔒

Offline by design

Threadkeeper works with no internet connection. Your data never touches a server.

🖥️

Mac-native

Built in Swift. Reads from the same database the Messages app uses. Fast, lightweight, private.

📄

PDF is permanent

No proprietary format. A PDF from Threadkeeper will open in 30 years just as it does today.

How it works

Three steps.
A lifetime preserved.

Threadkeeper reads directly from your Mac's Messages database. No accounts, no cloud, no subscriptions.

01

Choose a contact

Threadkeeper finds all your iMessage conversations and shows them by name, with message counts and date ranges.

02

Set your preferences

Pick an export type, date range, whether to include photos, and let Claude write an AI summary of the relationship.

03

Export to PDF

A beautiful, permanent PDF opens on your Mac. Print it, archive it, share it. Yours forever.

Export types

Every word they wrote,
kept forever.

Choose the format that fits the moment. Six carefully designed export types, each with its own cover, colours, and tone.

🤍
In Memory
For someone you've lost. A permanent record of every word they ever sent you.
✨
Keepsake
For conversations too precious to lose — family, milestones, moments.
⚖️
Legal
A timestamped, unmodified record for disputes, custody, or documentation.
📱
Phone Backup
Moving to Android or switching devices? Keep your history before you go.
💗
Relationship
For the one you love. Every message a moment. Every moment, yours.
💼
Business
A clean, professional record of business communications and agreements.
Get started

Your conversations deserve
more than a screenshot.

Download Threadkeeper for Mac and preserve them forever.

Get Threadkeeper — $24.99

One-time payment · Mac only · macOS 13+