Liner

Ask questions, get cited answers from credible academic sources

Some setup needed Web

assistant #ai-search#academic-research#citations

About

Ask a research question and get a concise answer with links to the papers it came from. Students and researchers use it to verify facts, scan literature, and organize projects without wading through dozens of tabs. Backed by 460M academic data points, it emphasizes source quality and verifiability over generic web results.

Editor's Take

Worth trying if you need verifiable, source-backed answers and want to move from hypothesis to draft inside one workspace; best suited for students and analysts who regularly handle PDFs and academic papers.

Key Features

Ask a question → get an answer with citations to papers and authoritative sources
Upload PDFs to a project → search across them and extract cited passages for your notes
Start a literature review → research agents surface key findings and link out for verification
Query across 460M academic data points → receive higher-precision, source-backed results
Run end-to-end research inside one workspace → move from hypothesis to draft with tracked references

Use Cases

A graduate student compiling a 20-source literature review for a methods class
A biotech analyst validating claims in a preprint before presenting to their team
An undergraduate writing a term paper who needs quotable, properly cited references in an hour

Try It Like This

1
Quickly verify a single claim
A product manager spots a statistic in a blog post → paste the claim into Liner and request sources; Liner returns a concise answer with linked papers and passages to verify the claim.
2
Build a 20-source literature review
A graduate student starts a new project and uploads PDFs and adds search queries → use the literature-review agent to surface key findings and suggested citations; export the organized list of papers and excerpted passages into notes for drafting.
3
Extract evidence from mixed sources
An analyst collects a web article, a YouTube lecture, and two PDFs → use the browser highlighter to capture passages across those sources; saved highlights appear in My Space so the analyst can assemble quotes with citations.
4
Validate a preprint before a meeting
A biotech analyst pastes the preprint abstract and asks for corroborating literature → Liner returns matching papers and excerpts that support or contradict the preprint, with links for direct verification; prepare slides using the cited passages.
5
Search across a huge academic index
A student asks a targeted research question (e.g., 'methods for single-cell RNA normalization') → Liner queries its 460M academic data points and returns a concise answer plus top papers and direct links to read and cite.

Pros & Cons

Pros

Returns concise answers paired with direct citations to papers and authoritative sources, enabling quick verification.
Supports uploading PDFs and extracting cited passages, with highlights saved into a private workspace (My Space) for organization.
Searches across a large academic index (460 million data points), improving precision for literature queries.

Cons

No offline access — requires an internet connection to use.
Collects user data, which may raise privacy concerns for sensitive research.
No evidence of Korean-language support was found, limiting usability for Korean-only workflows.

Getting Started

1 Visit Liner on the web and create an account.
2 Open a new project, ask a question, and optionally upload relevant PDFs.
3 Review the answer with its citations and add the linked papers to your project within minutes.