# Underleaf > Underleaf is an AI tool suite for LaTeX. It converts handwritten notes, PDFs, > images, tables, and documents into clean, compilable LaTeX, and provides > citation, bibliography, and academic writing tools for researchers, students, > and faculty. Underleaf is not a document editor — it is the AI layer around LaTeX. Bring a source document (a photo of a whiteboard, a scanned PDF, a spreadsheet, an arXiv paper) and Underleaf returns LaTeX you can compile. Alongside the converters, it generates BibTeX from DOIs, ISBNs, PMIDs, and URLs, finds relevant citations by meaning rather than keyword, and reformats manuscripts to journal and conference styles. Typst is supported alongside LaTeX. Every tool below runs in the browser and is free to try. ## Converters - [Image to LaTeX](https://www.underleaf.ai/tools/image-to-latex): Convert images of notes, equations, or tables to LaTeX code. - [PDF to LaTeX](https://www.underleaf.ai/pdf-to-latex): Convert academic PDFs to clean LaTeX source. Preserves equations, figures, and document structure. - [Table to LaTeX](https://www.underleaf.ai/tools/table-to-latex): Convert tables to LaTeX code from text or images. - [Excel to LaTeX](https://www.underleaf.ai/tools/excel-to-latex): Convert Excel spreadsheet data to LaTeX tables. - [LaTeX to Markdown](https://www.underleaf.ai/tools/latex-to-markdown): Convert LaTeX content to Markdown format instantly. - [HTML to LaTeX](https://www.underleaf.ai/tools/html-to-latex): Convert HTML documents to LaTeX format easily. - [Mermaid to LaTeX](https://www.underleaf.ai/tools/mermaid-to-latex): Convert Mermaid diagrams to LaTeX/TikZ code. - [LaTeX to Image](https://www.underleaf.ai/tools/latex-to-image): Render LaTeX and export as PNG or SVG images. - [Equation to LaTeX](https://www.underleaf.ai/tools/equation-to-latex): Convert equations to LaTeX code from text or images. - [arXiv to LaTeX](https://www.underleaf.ai/tools/arxiv-to-latex): Convert arXiv papers to LaTeX with one click. - [LaTeX to Word](https://www.underleaf.ai/tools/latex-to-word): Convert LaTeX documents to Word (.docx), with equations as native Word math. - [Word to LaTeX](https://www.underleaf.ai/tools/word-to-latex): Upload a Word document (.docx) and get clean LaTeX source back. - [Markdown to LaTeX](https://www.underleaf.ai/tools/markdown-to-latex): Convert Markdown notes to LaTeX documents instantly. - [PDF to Markdown](https://www.underleaf.ai/tools/pdf-to-markdown): Convert PDFs — including equations and tables — into clean Markdown with AI. First page free to try. - [Image to Typst](https://www.underleaf.ai/image-to-typst): Convert images of notes, equations, or tables to Typst markup with AI. - [PDF to Typst](https://www.underleaf.ai/pdf-to-typst): Convert PDFs — typed or handwritten — into editable Typst with AI + OCR. - [LaTeX to Typst](https://www.underleaf.ai/tools/latex-to-typst): Convert LaTeX to Typst as you type, with live compiled preview. - [Typst to LaTeX](https://www.underleaf.ai/tools/typst-to-latex): Convert Typst markup to LaTeX code for journals and submissions. - [Markdown to Typst](https://www.underleaf.ai/tools/markdown-to-typst): Convert Markdown notes to Typst documents instantly. - [Typst Editor](https://www.underleaf.ai/typst-editor): Write and compile Typst online with live preview and PDF export. - [Visual Typst Editor](https://www.underleaf.ai/tools/visual-typst-editor): Write like in Google Docs — clean Typst is generated and compiled live. ## Handwriting and OCR - [Handwriting to LaTeX](https://www.underleaf.ai/handwriting-to-latex): Turn handwritten maths and notes into typeset LaTeX. - [Photo to LaTeX](https://www.underleaf.ai/photo-to-latex): Photograph a page and get LaTeX back. - [Screenshot to LaTeX](https://www.underleaf.ai/screenshot-to-latex): Convert a screenshot of an equation or table into LaTeX. - [Whiteboard to LaTeX](https://www.underleaf.ai/whiteboard-to-latex): Convert whiteboard photos from lectures and seminars into LaTeX. - [Math OCR](https://www.underleaf.ai/math-ocr): Recognise mathematical notation in images and return LaTeX. - [Image to TikZ](https://www.underleaf.ai/image-to-tikz): Transform diagrams, flowcharts, and charts into TikZ code. ## References and Citations - [Find Citations](https://www.underleaf.ai/tools/find-citations): Paste a paragraph and find relevant arXiv papers with semantic AI search. Includes BibTeX export. - [AI Citation Finder](https://www.underleaf.ai/ai-citation-finder): Find supporting references for a claim or passage. - [Citation Generator](https://www.underleaf.ai/tools/citation-generator): Generate BibTeX citations from DOIs, article details, or structured fields. - [Citation Generators by Style](https://www.underleaf.ai/tools/cite): Free citation generators in APA, MLA, Chicago, IEEE, Harvard, Vancouver, AMA, and ACS, with BibTeX export. - [arXiv Citation Generator](https://www.underleaf.ai/tools/arxiv-citation-generator): Generate citations for arXiv papers in APA, MLA, Chicago, and Harvard formats. - [Bibliography Generator](https://www.underleaf.ai/tools/bibliography-generator): Generate complete bibliographies in APA, MLA, Chicago, and Harvard formats. - [DOI to BibTeX](https://www.underleaf.ai/tools/doi-to-bibtex): Paste a DOI, get a complete BibTeX entry, fetched live from CrossRef. - [ISBN to BibTeX](https://www.underleaf.ai/tools/isbn-to-bibtex): Convert any ISBN to a complete BibTeX book entry via Open Library. - [URL to BibTeX](https://www.underleaf.ai/tools/url-to-bibtex): Paste a paper URL, blog post, or arXiv link, get a BibTeX entry parsed from the page. - [PubMed to BibTeX](https://www.underleaf.ai/tools/pubmed-to-bibtex): Convert a PMID into a complete BibTeX entry using NLM metadata. - [BibTeX Cleaner](https://www.underleaf.ai/tools/bibtex-cleaner): Deduplicate, sort, and normalize a messy .bib file in seconds. Three-pass dedupe by DOI, title, and key. - [RIS to BibTeX](https://www.underleaf.ai/tools/ris-to-bibtex): Convert Zotero, Mendeley, EndNote, and PubMed RIS exports into BibTeX format. ## Teaching and Faculty - [Journal & Conference Reformatter](https://www.underleaf.ai/tools/journal-formatter): Reformat a manuscript to IEEE, Springer, Elsevier, Nature, NeurIPS, ICML, ACL, and more. - [Lecture Notes to LaTeX](https://www.underleaf.ai/tools/lecture-notes-to-latex): Whiteboard photos, handwritten pages, and PDF slides, converted into typeset LaTeX notes. - [LaTeX Syllabus Generator](https://www.underleaf.ai/tools/syllabus-generator): Build a clean syllabus with schedule, outcomes, grading, and policies, output as .tex. - [Problem Set Generator](https://www.underleaf.ai/tools/problem-set-generator): LaTeX problem-set template with problem and solution environments, student and instructor versions. - [Academic CV Templates](https://www.underleaf.ai/cv): Free LaTeX academic CV templates, researcher, postdoc, and faculty application variants. - [Résumé Templates](https://www.underleaf.ai/resumes): LaTeX résumé templates for academic and industry applications. ## Writing Tools - [AI LaTeX Generator](https://www.underleaf.ai/tools/ai-latex-generator): Generate complete LaTeX documents from text descriptions. - [Abstract Generator](https://www.underleaf.ai/tools/abstract-generator): Transform your research into a compelling abstract. - [Thesis Statement Generator](https://www.underleaf.ai/tools/thesis-statement-generator): Generate clear and concise thesis statements. - [AI Humanizer](https://www.underleaf.ai/humanizer): Rewrite AI-generated drafts into natural academic prose. ## Diagrams, Tables, and Equations - [TikZ Generator](https://www.underleaf.ai/tools/tikz-generator): Generate TikZ diagrams from natural language descriptions. - [LaTeX Table Generator](https://www.underleaf.ai/tools/latex-table-generator): Create LaTeX tables visually. - [Matrix Generator](https://www.underleaf.ai/tools/latex-matrix-generator): Generate LaTeX matrices with ease. - [LaTeX Equation Editor](https://www.underleaf.ai/tools/latex-equation-editor): Write and render LaTeX equations instantly. - [Share LaTeX Equations](https://www.underleaf.ai/tools/share-equation): Create shareable equation URLs that render as images in forums, READMEs, and chat. - [3D Graphing Calculator](https://www.underleaf.ai/3d): Free online 3D graphing calculator. Plot surfaces, parametric curves, and equations interactively. ## Symbol References - [Greek Symbols](https://www.underleaf.ai/tools/latex-greek-symbols): All LaTeX Greek letters including alpha, beta, gamma, delta, and more. - [Math Operators](https://www.underleaf.ai/tools/latex-math-symbols): Comprehensive LaTeX math symbols including operators, integrals, and set notation. - [Arrow Symbols](https://www.underleaf.ai/tools/latex-arrow-symbols): Complete LaTeX arrow symbols reference with rightarrow, leftarrow, and double arrows. ## Research Data and Statistics - [Erdős Number Calculator](https://www.underleaf.ai/tools/erdos-number): Find your Erdős number and see the verified coauthorship path to Paul Erdős. - [Sample Size Calculator](https://www.underleaf.ai/tools/sample-size-calculator): Estimate the sample size you need for a survey or study, with finite-population correction. - [p-Value Calculator](https://www.underleaf.ai/tools/p-value-calculator): Compute p-values from t-, z-, and chi-square statistics, with significance interpretation. - [Confidence Interval Calculator](https://www.underleaf.ai/tools/confidence-interval-calculator): 95% / 99% CIs for a mean or proportion, APA- and LaTeX-formatted output. - [JSON Formatter](https://www.underleaf.ai/tools/json-formatter): Pretty-print, minify, and validate JSON, with key count, depth, and array stats. - [CSV Viewer](https://www.underleaf.ai/tools/csv-viewer): Sort, filter, and inspect CSVs in your browser, column types inferred automatically. - [Academic Word Counter](https://www.underleaf.ai/tools/word-counter): Word, page, and reading-time counts with an option to strip LaTeX commands. - [Character Counter](https://www.underleaf.ai/tools/character-counter): Live character counts with comparisons against journal and grant limits. - [Reading Time Calculator](https://www.underleaf.ai/tools/reading-time-calculator): Estimate reading and speaking time, useful for talks, lectures, and articles. ## Learning Resources - [All Tools](https://www.underleaf.ai/tools): Index of every free Underleaf tool, grouped by category. - [Learn LaTeX](https://www.underleaf.ai/learn): Guides covering maths notation, document structure, tables, TikZ, and PGFPlots. - [LaTeX Guide](https://www.underleaf.ai/guide): Getting-started guide to writing and compiling LaTeX. - [Templates](https://www.underleaf.ai/templates): LaTeX templates for journals, conferences, theses, and CVs. - [Blog](https://www.underleaf.ai/blog): Articles on LaTeX technique, academic writing, and research workflow. - [FAQ](https://www.underleaf.ai/frequently-asked-questions): Common questions about Underleaf and LaTeX conversion. ## Products and Plans - [Pricing](https://www.underleaf.ai/pricing): Plan comparison. Free tier with monthly credits; paid tiers add capacity and features. - [Chrome Extension](https://www.underleaf.ai/extension): Brings Underleaf's AI writing help, citation finder, and maths generation into the browser. - [Teams](https://www.underleaf.ai/teams): Per-seat plans for research groups and departments. - [Enterprise](https://www.underleaf.ai/enterprise): Bulk document conversion and custom deployments. - [Digitize](https://www.underleaf.ai/digitize): Bulk archive digitisation — turn back catalogues of scanned PDFs into LaTeX. - [Universities](https://www.underleaf.ai/universities): Institutional access for departments and libraries. ## About - [About Underleaf](https://www.underleaf.ai/about): What Underleaf is and who builds it. - [Support](https://www.underleaf.ai/support): Contact and help. - [Accessibility](https://www.underleaf.ai/accessibility): Accessibility statement. - [Privacy](https://www.underleaf.ai/privacy): Privacy policy and data handling. ## Notes - Sitemap: https://www.underleaf.ai/sitemap.xml - The signed-in application lives at https://app.underleaf.ai. It requires an account and renders client-side, so it is not useful to crawl; every public description of a tool lives on www.underleaf.ai and is linked above.