AI Summarizer
Cut a long document down to the sentences that carry the meaning
Key terms
The summarizer weighs every sentence by how much of the document's core vocabulary it carries, then keeps the strongest ones in their original order so the result still reads as prose. Pick short, medium or long, switch to bullet points when you need something scannable, and take the key terms it pulls out as a ready-made outline.
How it works
Paste your text
Drop your draft into the box, or upload a .txt file if it is already saved somewhere.
Run the tool
One click starts the analysis. Longer passages give a steadier result than a single sentence.
Read the breakdown
You get a headline result plus the underlying measurements, so you can see how the score was reached.
Why people choose ZeroGPT
Runs in your browser
Nothing you paste or upload is sent to a server. AI Summarizer works offline once the page has loaded.
Free, with no account
There is no sign-up wall, no credit card and no daily limit hiding behind a paywall.
Built for real work
AI Summarizer is designed for students, writers and editors who need an answer in the middle of a task, not a demo.
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Fifteen free tools for writing, checking and cleaning up your work — all running in your browser.
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AI Paraphraser
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Grammar Checker
Catch the mistakes that slip past a quick read
AI Translator
Move text between languages without losing the sense
ZeroChat-4 & 5
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Word Counter
Every number you need about a piece of writing, live as you type
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Definitions, pronunciation and synonyms in one lookup
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Frequently asked questions
Is AI Summarizer free to use?
Yes. Every tool on ZeroGPT is free, with no account, no trial period and no credit card. There is nothing to unlock.
Is my text or file uploaded anywhere?
No. AI Summarizer runs entirely in your browser using JavaScript. Your content is read from the page, processed on your device, and discarded when you close the tab.
How accurate is it?
It is a strong signal, not a verdict. AI Summarizer measures statistical patterns, and patterns can be wrong in both directions. Use the result as one input into your own judgement, especially when the stakes are high.
Does it work on my phone?
Yes. The layout adapts to small screens and the tools are built to work with touch. Very large files may be slower on an older phone.
Which languages are supported?
ZeroGPT is available in English, French, German, Spanish, Italian and Portuguese. The text tools work best on English but handle other Latin-script languages reasonably well.