ChatMargin
See it in context

A workspace that lives next to ChatGPT.

ChatMargin keeps the useful layer around your conversations: structured notes, reusable prompts, follow-ups, search and a full writing workspace.

NOTES

Keep the important parts of a chat beside the chat.

Watch a useful passage move from ChatGPT into a structured note, get formatted, then split into a sub-page.

Add ChatMargin to Chrome

Local-first. No ChatMargin account required. Independent from OpenAI.

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Website launch plan
T
We need a lean launch plan for ChatMargin. What should we prioritize first?
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For the first phase, keep the product scope narrow and optimize for learning.

Start with Chrome and Chromium, focus on heavy ChatGPT users, and learn from the first 100 active users before expanding.

Then use those real workflows to decide what deserves deeper automation.

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Good. Turn that into concrete actions and risks.
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Actions: tighten onboarding, instrument feedback, interview users and preserve local-first trust.

Risk: adding too many features before the core workflow is obvious.

Ask anything
ChatGPT can make mistakes. Check important info.
Chat Margin Workspace
Product launch / Website launch plan

Launch decisions

Keep the launch simple and learn from real use.

Start with Chrome and Chromium, focus on heavy ChatGPT users, and learn from the first 100 active users before expanding.

Next steps

  • Instrument feedback from the current workflow
  • Interview early users
  • Protect the local-first experience
Same note. More room. Still attached to the ChatGPT conversation.
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What ChatMargin adds

ChatGPT is the conversation. ChatMargin is the layer around it.

ChatMargin is built for people who use ChatGPT across long, complex or unfinished work and need a lightweight system for everything that should stay beside the chat.

Notes

Keep notes attached to each conversation

Capture decisions, context and next steps with rich formatting, headings, lists, checklists, links and separate sub-pages.

Prompts

Save, reorder and reuse prompts

Keep prompts close to the work, reorder your custom prompts and insert them directly into the ChatGPT composer when needed.

Dashboard

Remember what still needs attention

Mark conversations for follow-up, assign priority and return to unfinished work from a dedicated dashboard.

Search

Find the material around your chats

Search across known conversation metadata, ChatMargin notes, note sub-pages and prompts without digging through your own side notes manually.

Workspace

Move from sidebar to a full writing surface

Open your note in a larger Workspace view while keeping it tied to the same conversation and synchronized with the sidebar.

Continuity

Use Context Checkpoint in long chats

Context Checkpoint is available from each conversation as a dedicated continuity tool when your work has become long or complex.

Common problems

Start from the problem you are actually trying to solve.

These guides explain the main ChatGPT workflow problems ChatMargin addresses, with the limits of the product stated clearly.

Guide

How to take persistent notes beside ChatGPT

Keep notes linked to a specific chat, structure them with sub-pages and open them in a larger Workspace.

 Guide

How to save and reuse prompts in ChatGPT

Build a lightweight prompt library, reorder saved prompts and insert them into the composer.

 Guide

How to organize unfinished ChatGPT conversations

Use follow-up status, priorities, Dashboard and Search to keep track of work that is not finished yet.

 Guide

How to add a working notebook beside ChatGPT

Use the sidebar for quick capture, then expand the same content into a full Workspace when the task gets bigger.
Local-first

Your ChatMargin data stays in your browser.

ChatMargin is designed to work without a ChatMargin account or a ChatMargin backend storing your notes.

  • Local storage: ChatMargin notes, prompts, follow-up data and related metadata use Chrome extension storage.
  • No ChatMargin account: the current product does not require you to create an account.
  • Not a transcript archive: ChatMargin does not position itself as a replacement for ChatGPT conversation history or as a full-chat backup tool.
  • Independent product: ChatMargin is not affiliated with OpenAI or ChatGPT.
  • Read the full Privacy Policy.

Make long ChatGPT work easier to resume.

If your problem sounds like "I need notes beside ChatGPT", "I keep losing prompts", or "I forget which chats I need to come back to", ChatMargin is built around exactly that workflow.

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