Does summarizing copied text send it to the cloud?

Your clipboard history stays local on your Mac. When you run a summarize transform, the selected text is sent only to the AI provider whose API key you configured. With a custom local endpoint, nothing leaves your machine.

Do I need an account to summarize text?

No. ClipHistory has no account and no cloud sync. You install it, add an API key for your chosen provider, and summarize from the clipboard.

Can I keep both the original and the summary?

Yes. Both stay in your clipboard history. Pin the summary to a board to keep it past the 150 unpinned clip limit.

What macOS versions are supported?

macOS 12 or later. ClipHistory is a universal binary that runs natively on both Apple Silicon and Intel Macs.

How to Summarize Copied Text on Mac

Q: Which AI providers can summarize my clipboard?

ClipHistory supports Anthropic, OpenAI, DeepSeek, Google, and a custom endpoint. You add your own API key, so you choose the model and pay the provider directly.

You just copied three paragraphs of release notes, a long email thread, or a dense documentation page. You don't need every word — you need the gist. On macOS, the fastest path to a summary isn't a web tool or a separate window. It's a clipboard manager that can summarize whatever is on your clipboard, right where you are.

This guide walks through exactly how that works with ClipHistory, what stays on your machine, and when summarizing from the clipboard beats every other method.

Why summarize from the clipboard instead of a chat window

The usual workflow is: copy text, switch to a browser tab, paste into a chat box, read the answer, copy it back. That's four context switches for one summary. Doing it from the clipboard collapses that into one keystroke.

ClipHistory keeps your recent clips on hand — 150 unpinned items plus unlimited pinned ones — and lets you run an AI transform on any of them. "Summarize" is one of those transforms, alongside rewrite, translate, and clean. The text never leaves your Mac except as a request to the AI provider you choose with your own API key.

Step by step: summarizing copied text

Copy the text you want to condense from any app — Safari, Mail, Notes, a PDF reader, anywhere.
Open ClipHistory with the global shortcut Cmd+Shift+V. Your clip is at the top of the list.
Select the clip and choose the Summarize AI transform.
Read the result in place. Paste the summary wherever you need it, or keep the original — both stay in your history.

There's no account to create and no upload to a cloud service. The request goes directly from your Mac to the provider you configured.

Bring your own AI provider

ClipHistory supports five providers: Anthropic, OpenAI, DeepSeek, Google, and a custom endpoint. You add your own API key once in settings. That means:

You control which model summarizes your text.
You pay the provider directly for what you use — no markup baked into a subscription.
If you run a local or self-hosted model, point the custom endpoint at it and nothing leaves your network at all.

What makes a good clipboard summary

Summarization quality depends on the model and the input. A few habits help:

Copy clean source text

If you copy from a webpage and bring along menus, ads, or footnote markers, the summary inherits that noise. Run the Clean transform first to strip junk, then summarize. Two transforms, still no app switching.

Keep summaries scoped

A 200-word passage summarizes well into two or three sentences. A 5,000-word article is better summarized section by section — copy each section, summarize, and pin the results to a board. Pinned clips don't count against your 150-item limit, so a research session can hold every summary you generate.

Pair it with rewrite

Sometimes you want the summary in a specific tone — a Slack-ready one-liner or a formal note. Summarize first to get the substance, then run Rewrite on the result to shape the voice.

A realistic example

Say you're triaging a long bug report pasted into a ticket. You:

Copy the report.
Cmd+Shift+V, Summarize.
Get a four-line summary: what broke, when, the affected version, and the reporter's environment.
Paste that summary at the top of the ticket for the next engineer.

The full report is still in your history if you need detail. The summary is what gets read first.

Privacy: where your text actually goes

This matters when the text you're summarizing is internal. ClipHistory stores your clipboard history locally on your Mac — no cloud sync, no account. When you run a summarize transform, the selected text is sent to the AI provider whose key you supplied, and only for that request. If you use a custom local endpoint, the text never leaves your machine. You decide the boundary.

When this beats a browser tool

A browser-based summarizer is fine for a one-off. But if you summarize text several times a day — reviewing PRs, condensing emails, distilling research — the clipboard route saves real time. It works in every app, keeps a history you can revisit, and doesn't ask you to log in each morning.

Because the summary stays in your history alongside the source, you also build a searchable trail of what you condensed. That's useful when you revisit a project days later and need the short version again without re-running anything.

Speed matters when it's a daily habit

The difference between a three-step flow and a six-step flow looks small once. Multiply it by a dozen summaries a day and the saved context switches add up to real focus. Keeping the action on the clipboard — one shortcut, one transform — is what makes summarizing something you actually do, instead of something you skip because it's a hassle.

ClipHistory is signed and notarized by Apple, ships as a universal binary for Apple Silicon and Intel, and runs on macOS 12 or later.

Get ClipHistory for macOS — $19.99, a one-time payment for a 12-month license (no auto-renewal). Signed and notarized by Apple, universal binary for Apple Silicon and Intel, runs fully local on macOS 12+. Download ClipHistory.