Upload PDFs, paste URLs, add YouTube videos — then ask questions and get answers grounded in your sources, with citations you can verify.
No credit card required · Free forever for personal use
The Transformer is a neural network architecture based on self-attention mechanisms1that processes sequences in parallel rather than sequentially2
We continuously evaluate our AI retrieval engine using industry-standard benchmarks to ensure you get accurate, hallucination-free answers every single time.
Faithfulness
Answers are strictly derived from your uploaded documents. We eliminate AI hallucinations.
Context Recall
Deep semantic search. We find the exact needle hidden in your 100-page PDF haystacks.
Answer Relevancy
Direct and concise answers. No dodging the question or useless rambling.
Ingest any source type
How it works
SourceMind turns your scattered research materials into an organized, queryable knowledge base in minutes.
Add PDFs, paste text, drop in URLs, YouTube links, or transcript files. Each source is automatically chunked and indexed into a vector database.
Type natural language questions. The system retrieves the most relevant chunks across all your sources to build rich context for the AI.
Receive detailed answers grounded in your sources with inline citation badges. Click any citation to jump to the original content.
Testimonials
See how SourceMind is transforming the way people learn, research, and work.
“SourceMind changed how I do literature reviews. I can upload 20 PDFs and instantly find connections between them with exact citations.”
“I use this to study for exams. I upload all my lecture transcripts and slides, and it acts as the perfect personalized tutor.”
“The ability to just drop a YouTube link and ask questions about a 2-hour lecture is mind-blowing. It saves me hours every week.”
Features
Everything you need to turn scattered sources into structured knowledge — all in one clean interface.
Each notebook maintains its own knowledge base. Keep your research organized and completely separated by topic.
Watch your sources go from uploading to indexed with clear status indicators at every step of the pipeline.
Every answer comes with numbered citation badges. No answer without attribution — click to verify the source.
Click a citation to see the original text, PDF page, or YouTube timestamp that produced the answer.
Sources can be removed or re-indexed on demand. Your knowledge base always stays current and accurate.
Your sources are siloed per notebook. Nothing is shared across notebooks or with other users.
FAQ
Everything you need to know about using SourceMind.
Create your first notebook, add your sources, and start asking questions — all in under a minute.
No credit card required · Free forever for personal use