LaTeX Compiler

Send a complete LaTeX document, and optionally the text of its .bib file, and get back the PDF, a picture of the first page, and every error and warning explained in plain language: what it means, how to fix it, and the line it is on. The assistant can use this to check LaTeX it writes before handing it over, and to fix its own mistakes. A second tool explains an error message or a whole TeX log that you paste, without compiling.

Engines: pdfLaTeX and XeLaTeX (use XeLaTeX for Unicode text). Limits: one .tex file of up to 300 KB plus an optional bibliography, 45 seconds per compile, PDFs up to 4 MB are attached. Images and other files cannot be sent, so \includegraphics of an image file fails; shell escape is off. Purplelink compiles the document on its own server, returns the result and deletes the files when the compile ends. Nothing is stored, and logs hold only counts (engine, number of errors and pages), never your text. For students, researchers and anyone writing LaTeX with an assistant.