Free AI memory Chrome extension

One memory for every AI you use.

Q: Which AI platforms does Rethread work with?

Rethread works with six AI platforms: ChatGPT (chatgpt.com), Claude (claude.ai), Gemini (gemini.google.com), Grok (grok.com), Perplexity (perplexity.ai), and DeepSeek (chat.deepseek.com). Memories captured in one are instantly recallable in the other five.

Rethread captures useful facts, preferences, decisions, and project context from your AI chats. Recall exactly what you need in ChatGPT, Claude, Gemini, Grok, Perplexity, or DeepSeek — without starting over.

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100+ Chrome users No account required Local by default

Works with ChatGPTClaudeGeminiGrokPerplexityDeepSeek

Rethread side panel organizing conversations from ChatGPT, Claude, Gemini, Grok, Perplexity and DeepSeek

Your AI chats, memories, and prompts in one side panel

The Problem

Built-in memory is improving. It is still trapped in each provider.

ChatGPT, Claude, and Gemini can now reference prior context inside their own products. But the architecture decision you made in ChatGPT still does not follow you to Claude, and Gemini cannot use the preferences you built elsewhere.

Rethread is the provider-independent memory layer you can inspect, organize, and carry across all six platforms.

Why Rethread

Use built-in memory for convenience. Use Rethread for control and portability.

Rethread complements first-party memory instead of pretending it does not exist.

Capability	Built-in AI memory	Saved notes / copy-paste	Rethread
Remember within one provider	Yes, depending on plan and settings	Manual	Yes
Carry context between six AI platforms	Provider-specific	Manual	Yes
Choose the exact context before sending	Mostly automatic	Yes, but slow	Selective Recall
Local-first storage	No	Depends on your notes app	Default
Structured, searchable, and exportable	Varies by provider	You maintain it	Facts, preferences, decisions, context

Features

Context that follows you everywhere.

🎯

Passive Capture

Silently observes your conversations and extracts key facts, preferences, and decisions. No manual tagging required.

NEW

⚡

Selective Recall

Search, filter, sort and edit memories before injecting context. Live token estimate, summary vs detailed mode, and per-memory feedback (helpful / hide) make every recall sharper than the last.

🔗

Cross-Platform Memory

Context captured in ChatGPT is instantly available in Claude, Gemini, Grok, Perplexity, and DeepSeek. Your knowledge graph follows you across six platforms.

NEW

☁️

End-to-End Encrypted Cloud Sync

Sync memories across every device with AES-256-GCM encryption derived from a passphrase only you know. Servers only ever see ciphertext — by design, even we can't read your data.

NEW

🏪

Prompt Template Marketplace

Browse 100+ hand-vetted prompts across coding, writing, research, and productivity. Star, install, or publish your own to the community library.

NEW

☀️

Daily Brief

Every morning at 8 AM Rethread builds a structured digest of yesterday — conversations, decisions, open questions, follow-ups, and top topics — surfaced as a banner and (optionally) a system notification.

NEW

💬

Cross-Conversation Quotes

Search across every captured message body, not just structured memories. Inject ranked snippets with conversation context alongside the rest of your recall payload.

NEW

📸

Snapshots & Word-Level Diff

Save immutable copies of any conversation at a point in time. Compare any two snapshots — or a snapshot vs. live — side-by-side with added / removed / modified highlights.

NEW

📋

Bulk Operations

Multi-select memories or conversations, then bulk delete, assign buckets, add or remove tags, move folders, or export Markdown — all in a single sweep.

NEW

⌨️

Global Hotkeys

Alt+Shift+R recalls context on the active page. Alt+Shift+P opens the floating prompt picker. Alt+Shift+L opens the side panel — without leaving your keyboard.

📂

Buckets, Folders & Tags

Group memories and conversations into color-coded buckets, folders, and dynamic tag filters. Combine with time-range search to slice context any way you need it.

PRO

🔑

Bring Your Own AI Key

Rule-based local extraction is free and works out of the box. Pro unlocks AI-powered extraction — plug in your own OpenAI-compatible API key (OpenAI, OpenRouter, and more) for sharper memory capture. The key is stored on your device and requests go direct, never through Rethread's servers.

🔒

Privacy First

Local-first by default. Cloud sync is opt-in and zero-knowledge — keys derive on-device via PBKDF2 → HKDF → AES-256-GCM. No tracking; usage stats are anonymous counts and strictly opt-in.

Inside the Extension

A real workspace, not a background black box.

See and edit what Rethread remembers. Search every AI conversation. Upgrade only when encrypted sync and unlimited capacity become useful.

Unified Rethread conversation list across six AI platforms

One searchable chat history

Browse conversations from six AI platforms in one side panel, filtered by provider, date, folder, tag, or keyword.

Rethread prompt template library for coding, writing, analysis and productivity

Prompts ready where you work

Use 100+ curated templates for coding, writing, research, and productivity without leaving the current AI chat.

Rethread Pro settings showing end-to-end encrypted cloud sync

Encrypted sync when you need it

Pro adds unlimited memory and cross-device sync encrypted in your browser before anything reaches the server.

How It Works

Three steps. Zero friction.

Chat naturally with any AI

Use ChatGPT, Claude, Gemini, Grok, Perplexity, or DeepSeek as you normally would. Rethread works silently in the background, extracting meaningful context from your conversations.

Memories build automatically — and sync, encrypted

Your preferences ("I prefer TypeScript"), decisions ("We chose PostgreSQL"), and facts ("I'm a backend engineer") are captured, tagged, and organized into buckets. Bulk-import past chat history, then turn on optional end-to-end encrypted cloud sync to keep every device in lockstep without leaking a single plaintext byte.

Recall and reuse — your way

Hit Alt+Shift+R or click Recall to open Selective Recall — search, sort, edit, and pick exactly the memories you want injected. Wake up to a Daily Brief at 8 AM. Browse 100+ community prompts. Snapshot any conversation and diff it later.

What Gets Remembered

Structured, searchable memories.

Not raw chat logs — distilled context.

Fact I'm a backend engineer using Go and PostgreSQL

Preference I prefer functional programming over OOP

Decision We decided to use microservices for the payment system

Context My project uses Next.js 14 with App Router and Tailwind CSS

Preference Always write TypeScript in strict mode with explicit return types

Decision Chose Railway for deployment over AWS for simplicity

Pricing

Simple, transparent pricing.

Start free. Upgrade when you need more power.

Free

forever · local-only

✓ Up to 100 memories
✓ 3 buckets · 3 recall results
✓ 2-week insights & Daily Brief
✓ Selective Recall, snapshots & diff
✓ Install marketplace prompts
✓ 100% local storage on this device

Get Started

Local-first. Zero-knowledge when you sync.

Rethread is built with a zero-knowledge architecture. Even when you turn on cloud sync, our servers only ever see ciphertext — your encryption keys never leave your browser.

✓ By default, all data stays in your browser's IndexedDB — nothing ever leaves your device
✓ Optional cloud sync (Pro) is end-to-end encrypted with AES-256-GCM keys derived on-device via PBKDF2 → HKDF — there is no "forgot password" by design
✓ No third-party tracking or identifiers — optional usage stats are anonymous counts, opt-in, and off by default
✓ Minimal permissions — the six AI platforms you use, plus licensing and any AI provider you connect yourself
✓ Uninstall to delete everything — and wipe the cloud copy from Settings → Cloud Sync → Disable in one click

FAQ

Frequently asked questions

What is Rethread?

Rethread is a free, privacy-first Chrome extension that gives AI chatbots persistent memory. It silently captures preferences, decisions, and context from your conversations on ChatGPT, Claude, Gemini, Grok, Perplexity, and DeepSeek, then injects relevant memories into every new chat so you never have to re-explain yourself. See how it works →

Is Rethread free?

Yes. The free plan is forever-free and supports up to 100 memories, 3 buckets, 3 recall results, the Daily Brief, Selective Recall, snapshots & word-level diff, and the prompt marketplace — all stored locally on your device. Pro ($6.99/month or $49 lifetime) unlocks unlimited memories, AI-powered extraction with your own API key, end-to-end encrypted cloud sync across devices, prompt publishing, and Markdown / JSON / PDF export. View pricing →

Which AI platforms does Rethread work with?

Rethread works with six AI platforms: ChatGPT (chatgpt.com), Claude (claude.ai), Gemini (gemini.google.com), Grok (grok.com), Perplexity (perplexity.ai), and DeepSeek (chat.deepseek.com). Memories captured in one are instantly recallable in the other five. Read about cross-platform memory →

Where is my data stored?

By default, all memories live locally in your browser's IndexedDB and never leave your device. Pro users can optionally enable end-to-end encrypted cloud sync — encryption keys are derived on-device via PBKDF2 and HKDF from a passphrase only you know, and our Cloudflare R2 backend only ever stores opaque ciphertext. Read the encryption deep dive →

Does Rethread replace ChatGPT, Claude, or Gemini's built-in memory?

No. First-party memory is useful inside each provider, and Rethread can work alongside it. Rethread adds what provider memory cannot: one shared memory across six AIs, local-first storage, structured organization, selective recall before sending, and portable exports. Compare the approaches →

Does Rethread work on Edge, Brave, Arc, or other Chromium browsers?

Yes. Rethread is a Chromium-based extension and runs on Chrome, Edge, Brave, Arc, Vivaldi, and any other Chromium browser. Firefox and Safari support is on the roadmap. Support & FAQ →

Stop repeating yourself to AI.

Install Rethread and give your AI conversations lasting memory.

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