AI text summarizer
Summarise an article, report or long post as one line, a short digest or a detailed breakdown, in the language you choose.
Your key stays in your browser.It goes straight to the provider, never to our servers, and we neither log nor keep it. Use a dedicated key with a spending cap, and delete it in the provider's dashboard when you are done.
Input
Result
The result will appear here.Paste an article, a report, a long GitHub issue thread or a blog post and get its gist in the shape you need: a single sentence for a changelog or a chat message, a short digest with the five main points, or a detailed breakdown with ten points and five takeaways. The structure is the one from Fabric's summarize pattern — one-sentence summary, main points, takeaways — and the summary can be written in a different language from the source, so an English post can be read as a Chinese digest in one step.
How it works
- Three lengths: one line of about 20 words; short, with 5 points and 3 takeaways; detailed, with 10 points and 5 takeaways.
- The model is told to summarise only what the text says — no outside facts, no advice of its own — and to keep names and numbers exactly as given.
- A short input gets fewer points rather than padded ones, so two paragraphs never come back as ten invented bullets.
- Summaries run on your own API key, sent from this page directly to the provider; the site itself never receives the text.
Where your data goes
With your own key, what you type and the key go from your browser straight to the provider you choose; neither passes through Hysen Labs. In hosted mode, your text goes through our server to our provider (DeepSeek) and is billed in credits; we keep the token counts and cost of each run for billing, never the text itself or the answer. How the provider handles the text is governed by its own privacy policy.
This tool handles keys and credentials, so nothing about a run is saved, not even to your own history.
About your API key
We do not collect, store or leak your key: it lives only in this page's memory (unless you tick “remember in this tab”) and is gone when you close it. Still, treat any key you have pasted into a web page with care — create a dedicated key with a spending cap for use here, and delete or rotate it in your provider's dashboard when you are done.
What it costs
This tool is free, with no sign-in and no points.
Common questions
- How long a text can it summarise?
- Up to the context window of the model you pick, which for most current models runs to tens of thousands of words. Long inputs cost more, since you pay for every input token, and some models lose detail from the middle of a very long document — for a book-length text, summarise chapter by chapter.
- Can I get a Chinese summary of an English article?
- Yes. Set "Answer in" to Simplified Chinese, or any other listed language, and the whole summary, headings included, is written in it whatever the source language. Left at "Same as the text", the summary follows the language most of the article is written in.
- Can I trust the summary?
- It is usually faithful, but a model can drop a qualification or merge two points into a claim neither made. For anything you will act on — a contract, a medical or financial text — use the summary to find the relevant passage, then read that passage in the original.
- Is my API key safe on this page?
- The key is used by this page to call the provider and is not sent to us; it disappears when you close the tab unless you chose to remember it for the tab's session. Even so, give tools like this a dedicated key with a low spending limit and revoke it afterwards — the one precaution that also protects you from a malicious browser extension.
The open-source behind it
This tool's prompt is adapted from danielmiessler/Fabric (MIT) and runs on the model you choose. To use the same capability from the command line or inside your own program, start with that project.
danielmiessler/FabricAlso known as
- ai summarizer
- summarize text
- article summary generator
- tldr generator
- summarize long text
- text summary online