One sentence, well aimed
AskSia compresses each paragraph to a single sentence (or one short line) that captures the main claim and the supporting evidence, without filler or padding.
True compression
AI Paragraph Summarizer
Summarize any paragraph, in one cited sentence.
Paste a paragraph into AskSia and read a tight one-sentence summary in seconds. Every claim links back to the exact words in the source paragraph, so you can compress fast and quote correctly. Useful for note-taking, study guide compression, and exam review. 40+ languages, free to start.
SupportsPDFWordPowerPointMarkdownScanned PDF · OCREPUBTXTCSVGoogle Docs
4.8 / 5 · 2M+ documents summarized by students at 2000+ universities
asksia.ai/summarize
9 files indexed
Study materials
Upload
Library
Selected files
Biology_Chapter_12.pdf
500p
Lecture_Slides_W6.pptx
Prof_Chen_Notes.docx
Handwritten_Review.pdf
OCR
Study_Guide.md
Problem_Set_5.pdf
Research_NeurIPS.pdf
Midterm_Review.docx
Tutorial_Slides.pptx
Midterm study plan — from all 9 of your files
Focus on cellular respiration and the Calvin cycle first — they dominate your textbook1 and lecture slides2. Prof. Chen's notes flag three common exam traps3.
Biology_Chapter_12.pdf
1
5
Lecture_Slides_W6.pptx
2
Prof_Chen_Notes.docx
3
Handwritten_Review.pdf
4
Study_Guide.md
6
≡ Summary
Study guide
Quiz
Flash Card
PDF
Biology_Chapter_12.pdf
p. 217
Quick Answer
What is AskSia AI Paragraph Summarizer?
AskSia AI Paragraph Summarizer takes any paragraph and returns a tight one-sentence or one-line summary, with [N] citations linking to the exact words in the source. Useful for compressing dense academic prose into note-card-ready text, building study guides, and quoting accurately. Hover any citation to see the source phrase highlighted. Supports 40+ languages with translation.
100
files per session
500p
textbook in one pass
OCR
native, zero setup
100%
answers cited to page
Why AskSia
The paragraph summarizer that nails the one-line.
Most chatbots add filler when asked to compress. AskSia returns a single tight sentence, with citations linking back to the exact source words.
Cited to the exact words
Every line of the summary carries a [N] marker. Hover to see the exact source words highlighted in the paragraph. Useful for direct quoting in essays and research papers.
Word-level citations
Multi-paragraph batches
Drop a stack of paragraphs from a chapter, a research paper, or a lecture transcript and AskSia returns one-sentence summaries for each, ready to paste into your study guide.
Batch summarization
Side-by-side note layout
The original paragraph and the one-sentence summary appear side by side, useful for note-taking, paragraph close reading, and building exam-ready study guides.
Notes layout
40+ languages with translation
Paste a paragraph in Spanish, Mandarin, French, or any of 40+ supported languages, and read the one-sentence summary in English alongside, with citations linking to the source words.
Cross-lingual notes
From paragraph to study card
One click turns each one-sentence summary into a flashcard, a quiz question, or a node in a concept map. Useful for building study guides without manual rewriting.
Flashcards from paragraphs
How It Works
From paragraph to one cited sentence in seconds.
Just paste. Multi-paragraph batches supported on every plan.
Step 01
Paste the paragraph
Open AskSia and paste the paragraph you want to summarize. Drop in multiple paragraphs at once for batch processing.
Drop documents here
PDF, Word, PPT, Markdown, scans, and photos
PDF
Biology_Chapter_12.pdf
500p
P
Lecture_Slides_W6.pptx
38
W
Prof_Chen_Notes.docx
12
MD
Study_Guide.md
4
9 files ready · 100 max
Step 02
AskSia indexes the words
AskSia parses the paragraph at the phrase and word level, separating main claim, supporting evidence, and qualifiers.
Indexing in parallel
PDF
Textbook pages
DONE
P
Lecture slides
DONE
W
Professor notes
DONE
PDF
Handwritten review
OCR
MD
Markdown study guide
READING
100%
Sources indexed with page-level citation anchors.
Step 03
Read, ask, export
Read the one-sentence summary with [N] citations linking to the exact source words. Ask Sia for a tighter version, a flashcard, or a paraphrase. Export as TXT, DOCX, or Google Docs.
What should I study first for the midterm?
Start with cellular respiration1 and the Calvin cycle2. Your handwritten review adds a comparison table4.
Biology_Chapter_12.pdf
p.217
Referenced passage highlighted on the original page.
Use Cases
How students compress paragraphs with AskSia.
Dense academic paragraphs
Compress a dense theoretical paragraph from a textbook or research paper into one clear sentence, with the original alongside for verification. Useful for fast reading and citation-ready notes.
Academic prose
Note-taking from chapters
Paste each paragraph from an assigned reading and AskSia returns a one-sentence summary for each. Build a study guide for the chapter without manual rewriting.
Chapter note-taking
Research paper paragraphs
Drop the abstract, introduction, methodology, and discussion paragraphs from a research paper, one at a time or in a batch, and read tight one-sentence summaries with word-level citations.
Research paper notes
Lecture transcript paragraphs
Compress paragraph-sized chunks of a lecture transcript into one-sentence summaries, useful for review notes and last-minute exam prep.
Lecture review
Foreign-language paragraphs
Paste a paragraph in Spanish, Mandarin, French, or any of 40+ supported languages, and read the English one-sentence summary alongside.
40+ languages
Discussion-board posts
Compress long classmate discussion-board posts into one-sentence summaries to skim faster and respond accurately, with citations to the original words.
Discussion board
Compare
AskSia vs. NotebookLM,
ChatPDF, and ChatGPT.
Most AI document tools are built for one file. AskSia is built for students studying a whole library at once.
| Feature | AskSia | NotebookLM | ChatPDF | ChatGPT File Upload |
|---|---|---|---|---|
| Max files per session | ✓ 100 | ~ 50 | 1 | ~ 10–20 |
| Native OCR for scanned PDFs | ✓ Auto, no setup | ~ limited | ✗ | ✗ |
| Handwritten notes recognition | ✓ 40+ languages | ✗ | ✗ | ✗ |
| Mixed-format session (PDF+PPT+DOCX+MD) | ✓ All at once | ~ partial | PDF only | ✓ |
| Hover-to-source page highlighting | ✓ Visual preview | ~ citations only | ~ page ref | ✗ |
| 500-page textbook in one pass | ✓ No chunking | ~ size limits | ~ size limits | ✗ truncation |
| Cross-document Q&A | ✓ Unified answer | ✓ | ✗ single doc | ~ degrades |
| Auto flashcards & quizzes | ✓ One click | ✗ | ✗ | ✗ |
| Free to start, no credit card | ✓ 100 files free | ✓ | ~ 1 file free | ✗ Plus needed |
FAQ
Common questions about paragraph summarizing.
How do I summarize a paragraph with AskSia?
Open AskSia, paste the paragraph into the input area, and the AI returns a tight one-sentence summary with [N] citations linking to the exact source words. Hover any [N] to see the source phrase highlighted. Useful for note-taking and citation-ready quoting.
Can I summarize multiple paragraphs at once?
Yes. Paste multiple paragraphs into a single session and AskSia returns one-sentence summaries for each, in order. Useful for chapter notes, research paper sections, and full lecture transcripts where you want one summary per paragraph.
Can I trust the one-sentence summary?
Every claim in the summary is grounded in a [N] citation that links to the exact source words. You can hover any citation to see the original phrase highlighted in the paragraph. The summary will not include any claim it cannot trace back to specific words in the source.
Can I get a different summary length?
Yes. The default is a tight one-sentence summary. Ask Sia for a tighter version (a phrase or three-word tag), or for a longer two-to-three-sentence version. The summary stays grounded in the same source citations.
Can AskSia summarize paragraphs in other languages?
Yes. AskSia summarizes paragraphs in 40+ languages and detects the source language automatically. You can also translate the summary at the same time, so a Spanish, Mandarin, or French paragraph can be read in English alongside the original.
Can I turn paragraph summaries into study materials?
Yes. Each one-sentence summary turns into a flashcard, a quiz question, or a node in a concept map with one click. Useful for building study guides for an assigned chapter or a research paper without manual rewriting.
Can I export the paragraph summaries?
Yes. Export the one-sentence summaries as TXT, DOCX, or send to Google Docs or Notion. Citations linking to source words are preserved in the export, useful for note-taking and citation-ready writing.
Start Today
Paste a paragraph. Get one cited sentence.
Whether a dense academic paragraph, a chapter excerpt, or a lecture transcript chunk, AskSia compresses any paragraph into a single cited sentence ready for your notes.
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