Back up every ChatGPT conversation. Automatically.

Always-on local backup of every chat you have — on ChatGPT, Claude, Gemini, and more. No export flow, no monthly reminder, no wall of lost conversations when the service goes down.

In 30 seconds

OpenAI's own data export takes up to 24 hours and only runs when you remember to trigger it. Memdex is a Chrome extension that auto-backs up every ChatGPT conversation the moment it happens, stored locally and encrypted in your browser. When an outage erases your history, when you delete your account, or when a policy change rewrites retention rules, your backup is already done.

  • Every new ChatGPT conversation is auto-saved to your browser the moment you send the first message.
  • Also covers Claude, Gemini, Perplexity, and Grok — so you have one backup for every AI you use.
  • Backups are encrypted at rest with a key only you hold. Export an encrypted archive anytime.
  • Works during outages: your history is in your browser, not in OpenAI's database.

What goes wrong when you don't already have a backup

ChatGPT has lost conversations to outages. Accounts have been deleted (yours or someone else's). Retention policies have been rewritten mid-flight. The people who came out of those moments with their history intact had one thing in common: the backup already existed before they needed it.

OUTAGES

ChatGPT's history has disappeared mid-session before

Multi-hour ChatGPT outages in 2024 and 2025 wiped conversation history for many users during the incident window. Messages sent while the sidebar was broken never made it back. A local backup is the only reliable answer.

ACCOUNT DELETION

Quitting and keeping your history are separate decisions

You might want to delete your OpenAI account. You probably don't want to delete what you spent two years writing to it. Without a backup, those are the same action.

MANUAL EXPORT

OpenAI's export works, but only when you remember it

OpenAI's official data export is a ZIP file delivered hours later, triggered on demand. It backs up what exists at that moment — not the conversation you'll have tomorrow. You'll need to run it constantly, or it will miss whatever you lose next.

ALWAYS-ON

The only backup that matters is the one that runs without you

Automation beats intent. A backup that kicks in the second you send a message is a backup that will still be there in six months, after you forgot you installed it.

How Memdex backs up ChatGPT automatically

One install. Then never again. Every message you send — backed up before the reply even finishes streaming.

01INSTALL ONCE

Install the Chrome extension

Add Memdex to Chrome, Edge, Brave, or Arc in one click. No sign-up, no account, no configuration. From that moment on, you're covered.

02AUTO-CAPTURE

Every message is backed up as it happens

Memdex watches the ChatGPT page you already have open and captures each message the moment you send or receive it. Captured data is encrypted and written to your browser's local storage — no ChatGPT server round-trip required.

03VERIFY & EXPORT

Check the archive, export anytime

Open Memdex to see every captured conversation in one searchable list. Export an encrypted archive to your disk anytime you want an off-browser copy, or when you're planning to switch machines.

Memdex vs. other ways to back up ChatGPT

Three common approaches, ranked by whether they're actually ready when you need them.

CapabilityMemdexOpenAI data exportChatGPT ExporterNothing / manual copy
Runs automatically — no action required
Covers conversations going forward, not just historical
Delivered instantly (no email, no wait)
Also backs up Claude, Gemini, Perplexity, and Grok
Encrypted at rest with a user-held key
Survives a ChatGPT outage (offline-readable)

OpenAI data exports typically arrive within 4–24 hours. ChatGPT Exporter Chrome extension captures on demand but not automatically. Manual copy-paste includes exporting a page to PDF or Markdown.

Frequently asked

Install the Memdex Chrome extension. From that moment on, every new ChatGPT conversation is auto-saved to your browser, encrypted locally. You can export a full archive at any time. For conversations you had before installing Memdex, use OpenAI's one-time data export to bring them in.

Back up once. Sleep better.

Automatic backup for your ChatGPT conversations | Memdex