Reference calculators

Reference education tools that run locally in your browser.

Citation Generator — APA & MLA

Fill in author, title, publisher and date and get a formatted reference in APA or MLA, punctuation and italics already in the right places.

Flashcard Formatter — Q&A to Markdown

Turn a list of questions and answers into Markdown that Anki, Obsidian or Notion will read as cards rather than as one undifferentiated block.

APA to MLA Citation Converter

Paste a reference formatted in APA and get the MLA version back, with author order, title case and the date position all moved to where MLA puts them.

Roman Numeral Converter

Convert numbers to Roman numerals and back, following the subtractive rules so 4 comes out as IV and 1994 as MCMXCIV rather than as a row of ones.

Excel Formula Translator

Translate Excel function names between English, Portuguese, and Spanish. Search 375 functions — VLOOKUP is PROCV in pt-BR, BUSCARV in Spanish.