Ask your documents.
Get answers you
can verify.
Upload research papers and reports, then have a conversation with them. Querex retrieves the relevant passages and answers with page-level citations — grounded, streamed, and traceable. It's also home to a Humanizer, an AI Checker, Real-time web search, and a Paper Analyzer, all under one login.
Free to use · sign in with Google, GitHub, or email
Research Copilot, live preview
Growth was led by enterprise renewals, with average deal size rising 12% quarter-over-quarter across the segment.
Five tools. One account.
Querex started as a document copilot. It's now a small suite of research and writing tools, each free to use the moment you sign in.
The flagship tool
Research Copilot
The original Querex product, and still the most capable — upload, ask, and every answer streams back with a page citation you can check.
Open Research CopilotGrounded in your sources
Page-level citations
Real-time streaming
Multi-document synthesis
Humanizer
Sound human. Stay accurate.
Rewrite AI-sounding text so it reads naturally, with meaning and facts preserved. Built to make writing genuinely better, not to trick a detector — no invisible characters, no gimmicks, just better editing.
- Natural, direct rewrites — built for blog posts, social copy, and product writing
- Word-diff transparency — see exactly which words changed
- Streams live, token by token, no waiting for the full rewrite
Original
Artificial intelligence systems have revolutionized numerous industries.
AI Checker
Decisive answers, not hedging.
Detect AI-generated text with sentence-level highlighting and a paragraph-by-paragraph breakdown — plus a free grammar and style pass bundled in. Every result carries an honest disclaimer, not false certainty.
- Sentence-level highlighting of the exact flagged text
- Advanced Scan — a paragraph-by-paragraph AI-probability breakdown
- Free Writing Feedback — grammar, spelling, and clarity issues
- States its own false-positive risk instead of overclaiming
Real-time AI
Current answers, always cited.
General chat grounded in live web search — every answer links back to a real, clickable source. Search results are treated strictly as data to cite, never as instructions to follow.
- Live web search on every question, not just training data
- Numbered, clickable citations for every claim
- Independent session history, separate from Research Copilot
- Search results can't hijack the model — they're data, not commands
Paper Analyzer
Formatting, actually measured.
Upload a research paper and pick a style guide — APA, MLA, or IEEE. Every check is computed directly from the PDF's real margins, spacing, font, and alignment, never guessed by a model looking at a description.
- Checks against APA, MLA, or IEEE — chosen before you upload
- Margins, line spacing, font, alignment, and page numbering
- Measured from real page geometry, not an LLM's best guess
- Every check shows the measured value next to what's expected
Stop guessing. Start verifying.
Ask your documents, rewrite AI-sounding text, detect AI content, search the live web, or check a paper's formatting — pick a tool and get your first result in under a minute.