Paste any text, any source
Paste a chapter excerpt, an article you copied, lecture-transcript text, your own study notes, or any block of text. AskSia handles short paragraphs to chapter-length passages.
Any text, any length
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AI Text Summarizer
Summarize any text, with every line cited to the source.
Paste any block of text into AskSia and read a clean, structured summary in seconds. Every claim carries a [N] citation that links back to the exact passage in the source, so you can read fast and trust what you read. 40+ languages, study tools built in, 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 Text Summarizer?
AskSia AI Text Summarizer takes any pasted text and produces a clean summary with [N] citations on every claim. Hover a citation to see the exact source passage highlighted in the original text. The summary turns into flashcards, study guides, or quizzes in one click. Useful for assigned readings, lecture transcripts, study notes, web content, and any block of text from a chapter excerpt to a long-form article. 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 text summarizer that shows its work.
Generic chatbots summarize without showing where claims came from. AskSia cites every line back to the exact passage in the source.
Cited to the exact passage
Every line of the summary carries a [N] marker. Hover to see the exact passage highlighted in the source text. Click to jump to that paragraph. No hallucinations to chase down.
Hover to verify
Side-by-side study layout
The original text and the summary appear side by side, so you can compare claims to passages and self-correct. Useful for close reading, research synthesis, and exam review.
Source plus summary
Built for student writing
Turn the summary into a thesis-ready outline, a discussion-board post draft, a paragraph for an essay, or an annotated bibliography entry, all with citations preserved.
Outlines and drafts
40+ languages with translation
Paste a Spanish, Mandarin, French, or any of 40+ supported languages, and read the summary in English (or any other supported language) with citations linking to the source passage in the original.
Cross-lingual reading
From text to study pack
One click turns the summary into definition flashcards, a concept-check quiz, a study guide, or a visual concept map, all traceable back to the source passage via the same citation system.
Flashcards, quizzes, maps
How It Works
From pasted text to cited summary in seconds.
Just paste. No formatting cleanup, no length cap on Pro.
Step 01
Paste the text
Open AskSia and paste any block of text. Article copy, chapter excerpts, lecture transcripts, or your own notes.
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 passage
AskSia parses headings, paragraphs, quotes, and lists, and builds a passage-level citation index across the text.
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 structured summary with [N] citations. Hover to see the source passage highlighted. Ask Sia for flashcards, a quiz, or an outline. Export as TXT, DOCX, PDF, Google Docs, or Notion.
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 summarize text with AskSia.
Chapter excerpts and assigned passages
Paste a textbook chapter excerpt or an assigned passage and AskSia returns a structured summary with passage-level citations, ready for class discussion or exam review.
Chapter prep
Lecture transcripts
Paste a lecture transcript (from Otter, Zoom, or your own notes) and AskSia turns it into a structured summary with timestamped citations to specific lines, useful for review.
Lecture review
Web content and copied articles
Copy any article or web page and paste the text. AskSia summarizes with passage-level citations, useful when you cannot use the URL directly (paywall, login, or copied excerpt).
Copied web content
Your own study notes
Paste your typed study notes and AskSia compresses them into a tight summary with citations, useful for last-minute exam prep and converting messy notes into study guides.
Notes to study guide
Email threads and discussion text
Paste a long email thread, a discussion-board post, or a chat log and AskSia returns the key points with passage citations, useful for catching up on async class discussions.
Discussion catch-up
Foreign-language text
Paste text in Spanish, Mandarin, French, or any of 40+ supported languages, and read the English summary alongside the original with passage citations preserved.
40+ languages
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 text summarizing.
How do I summarize text with AskSia?
Open AskSia, paste any block of text into the input area, and the AI returns a clean structured summary with [N] citations on every claim. Hover any [N] to see the exact source passage highlighted in the original text. The summary turns into flashcards, a quiz, or a study guide in one click.
How long can the text be?
AskSia handles text from short paragraphs up to chapter-length passages on the free plan. AskSia Pro and AskSia Super support longer text input, useful for pasting a full chapter, a long-form article, or a complete lecture transcript.
Can I trust the summary?
Every claim in the summary is grounded in a [N] citation that links to the exact source passage. You can hover any citation to see the original passage highlighted, or click to jump to that paragraph. The summary will not include any claim it cannot trace back to the source.
Can I summarize text in other languages?
Yes. AskSia summarizes text in 40+ languages and detects the source language automatically. You can also translate the summary at the same time, so Spanish, Mandarin, French, or any other supported language can be read in English alongside the original, with passage-level citations preserved.
Can I generate study materials from the summary?
Yes. One click turns the summary into definition flashcards, a concept-check quiz, a study guide, or a visual concept map. Each card and question links back to the original passage via the same citation system.
Can I summarize multiple text passages together?
Yes. Paste multiple passages into a single session, or upload text files alongside (TXT, MD, RTF). AskSia indexes them together and you can ask cross-passage questions like 'where do these passages disagree?' with synthesized answers and per-passage citations.
Can I export the text summary?
Yes. Export the summary as TXT, DOCX, PDF, or send to Google Docs or Notion. Citations and source-passage links are preserved in the export, useful for class notes, study guides, and discussion-board posts.
Start Today
Paste your text. Read it in seconds.
Whether a chapter excerpt, a lecture transcript, web content, or your own notes, AskSia summarizes any text with every line cited to the source.
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