AI Summarizer for Text, Articles & Documents

Start by pasting your text or uploading a document — the summarizer needs at least 60 words and accepts up to 10,000. Choose a length (Short, Medium, or Detailed), pick an output format, and press Summarize. Everything else happens on one screen: your source stays on the left and the summary appears on the right.

If you only care about one aspect of a long report — say, the budget figures — enable Custom focus and describe the topic. Focus reorders emphasis, but it never adds facts that are not in your source; if the topic is not discussed, the tool tells you so instead of inventing content.

One practical tip: summarize the original document, not a summary. Feeding an already-condensed text back through the tool compounds omissions — the details dropped by the first pass are gone before the second begins.

Length settings are relative to the source, not fixed word counts. Short aims for roughly 5–12% of the original length, Medium for 10–25%, and Detailed for 20–45%. A 3,000-word report summarized at Short should come out around 150–360 words; the same report at Detailed can run 600 words or more.

Format matters as much as length. Paragraphs preserve the flow and order of an argument, which suits essays and news features. Bullet Points split the content into one point per line — better for meeting notes and technical documentation. Key Takeaways produces standalone sentences a reader can quote without surrounding context, which works well for reports you need to share upward.

Because targets are honest rather than guaranteed, every result shows the actual output word count and the real length reduction, so you can judge whether the summary is right for your purpose instead of trusting a promised length that may not fit your text.

News articles and blog posts summarize well at Short or Medium: pick out the central claim, the key actors, and any conditions attached to them. For opinion pieces, the summary keeps the author's framing — what is argued stays argued, what is reported stays reported.

Research papers benefit from Detailed. The summarizer retains methodology details, sample sizes, limitations, and confidence levels stated in the paper, so "correlational finding in 212 participants" does not become "proven effect." If a paper's conclusions are hedged, the hedge survives into the summary.

For study notes, Key Takeaways format works as a revision aid: each line is a self-contained fact or relationship. Because references point back to the section they came from, you can jump straight back to the original explanation when a takeaway is unclear.

A summary compresses: it selects the most important ideas from a longer text and deliberately drops detail. A paraphrase restates: it covers the same material at roughly the same length in different words. Summarizing a paragraph produces a sentence; paraphrasing it produces a different paragraph.

The distinction matters for academic work. Paraphrasing a source without citation is still plagiarism; a summary is shorter but the source must still be credited. The AI Summarizer summarizes — if you need a full restatement instead, AIDetector.cx's humanizer and rewriting tools handle that separately.

It also matters for quotes. The summarizer uses quotation marks only for wording copied exactly from your source, so anything in quotes in the output can be checked against the original word for word.

Expand the source references under any summary to see which section each key statement came from, with optional exact quotes. Spot-check at least the statements you intend to rely on: open the cited section and confirm the claim, its numbers, and its conditions match.

The automated checks catch unsupported names and numbers, changed negation or certainty, invented conclusions, duplicate and truncated output, and references that point outside the document. They do not replace your judgment on whether a summary captures what matters for your use case — a technically faithful summary can still emphasize the wrong things for your purpose.

Keep in mind that references prove origin, not truth: they show the statement came from your source, not that your source was correct. Summarizing a document does not validate its claims — for that, use the Plagiarism Checker or a citation tool.

Inputs: pasted text, public web URLs (HTTP/HTTPS), or PDF, DOCX, TXT, HTML, and Markdown files with a readable text layer. Minimum 60 words, maximum 10,000 words per summary. Scanned documents and image-only PDFs are rejected with an explanation, because there is no text to summarize. Video and audio summarization are not offered — only pipelines that work end to end are advertised.

Output can be written in 20 languages: English, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Russian, Turkish, Arabic, Hindi, Indonesian, Japanese, Korean, Simplified Chinese, Traditional Chinese, Vietnamese, Thai, and Ukrainian — independent of the source's language.

Completed summaries can be copied to the clipboard or downloaded as a TXT file. Copying, downloading, and reopening a finished summary never costs anything; only running a new or regenerated summary does.

Your text and summaries are processed in memory and are never stored in the database or written to logs. Nothing you summarize is used to train models. Private content is not placed in URLs, page metadata, or analytics events.

Processing uses the platform's shared AI generation backend. The trial and credit accounting records only counts and settings — word totals, length, format, language — never the content itself.

If you sum up confidential material, the same retention rule applies: once the summary is on your screen, the source and result are no longer held anywhere on our side.