# Formats and compatibility > Every format carta reads and writes, the extensions each accepts, and the gaps that remain. carta names formats the way pandoc does, so a command written for one runs against the other. A format name may carry extension toggles (`markdown+hard_line_breaks-raw_html`), and `carta --list-extensions=` prints the set a given format accepts. ## Formats ### Markdown family | Format | Names | Reader | Writer | Cargo features | | ------------------------ | ------------------- | ---------------- | ------------- | ------------------------------------ | | CommonMark | `commonmark` | ✅ Usable | ✅ Usable | `read-commonmark` `write-commonmark` | | CommonMark-X | `commonmark_x` | ✅ Usable | ✅ Usable | `read-commonmark` `write-markdown` | | Djot | `djot` | ❌ Not started | ❌ Not started | — | | GitHub-Flavored Markdown | `gfm` | ✅ Usable | ✅ Usable | `read-commonmark` `write-gfm` | | Pandoc Markdown | `markdown` | ✅ Usable | ✅ Usable | `read-commonmark` `write-markdown` | | GitHub Markdown, legacy | `markdown_github` | ✅ Usable | ✅ Usable | `read-commonmark` `write-markdown` | | MultiMarkdown | `markdown_mmd` | ✅ Usable | ✅ Usable | `read-commonmark` `write-markdown` | | PHP Markdown Extra | `markdown_phpextra` | ✅ Usable | ✅ Usable | `read-commonmark` `write-markdown` | | Markdown strict | `markdown_strict` | ✅ Usable | ✅ Usable | `read-commonmark` `write-markdown` | | Markua | `markua` | ➖ Not applicable | ❌ Not started | — | ### HTML & slides | Format | Names | Reader | Writer | Cargo features | | ------------ | -------------- | ---------------- | ------------- | ------------------------ | | Beamer | `beamer` | ➖ Not applicable | ✅ Usable | `write-beamer` | | Chunked HTML | `chunkedhtml` | ➖ Not applicable | ❌ Not started | — | | DZSlides | `dzslides` | ➖ Not applicable | ❌ Not started | — | | HTML | `html` `html5` | ✅ Usable | ✅ Usable | `read-html` `write-html` | | HTML 4 | `html4` | ➖ Not applicable | ✅ Usable | `write-html4` | | PowerPoint | `pptx` | ❌ Not started | ❌ Not started | — | | reveal.js | `revealjs` | ➖ Not applicable | ✅ Usable | `write-revealjs` | | S5 | `s5` | ➖ Not applicable | ❌ Not started | — | | Slideous | `slideous` | ➖ Not applicable | ❌ Not started | — | | Slidy | `slidy` | ➖ Not applicable | ❌ Not started | — | ### TeX & typesetting | Format | Names | Reader | Writer | Cargo features | | ------- | --------- | ---------------- | ------------- | -------------------------- | | ConTeXt | `context` | ➖ Not applicable | ❌ Not started | — | | LaTeX | `latex` | ✅ Usable | ✅ Usable | `read-latex` `write-latex` | | PDF | `pdf` | ➖ Not applicable | ❌ Not started | — | | Texinfo | `texinfo` | ➖ Not applicable | ❌ Not started | — | | Typst | `typst` | ❌ Not started | ✅ Usable | `write-typst` | ### Lightweight markup | Format | Names | Reader | Writer | Cargo features | | ---------------- | ----------------- | ---------------- | ---------------- | ---------------------- | | AsciiDoc | `asciidoc` | ❌ Not started | ✅ Usable | `write-asciidoc` | | AsciiDoc legacy | `asciidoc_legacy` | ➖ Not applicable | ❌ Not started | — | | Asciidoctor | `asciidoctor` | ➖ Not applicable | ❌ Not started | — | | Haddock | `haddock` | ❌ Not started | ❌ Not started | — | | Muse | `muse` | ❌ Not started | ❌ Not started | — | | Org mode | `org` | ✅ Usable | ✅ Usable | `read-org` `write-org` | | Perl POD | `pod` | ❌ Not started | ➖ Not applicable | — | | reStructuredText | `rst` | ✅ Usable | ✅ Usable | `read-rst` `write-rst` | | txt2tags | `t2t` | ❌ Not started | ➖ Not applicable | — | | Textile | `textile` | ❌ Not started | ❌ Not started | — | ### Wikis | Format | Names | Reader | Writer | Cargo features | | --------- | ----------- | ---------------- | ---------------- | ---------------------------------- | | Creole | `creole` | ❌ Not started | ➖ Not applicable | — | | DokuWiki | `dokuwiki` | ✅ Usable | ✅ Usable | `read-dokuwiki` `write-dokuwiki` | | Jira | `jira` | ✅ Usable | ✅ Usable | `read-jira` `write-jira` | | MediaWiki | `mediawiki` | ✅ Usable | ✅ Usable | `read-mediawiki` `write-mediawiki` | | TikiWiki | `tikiwiki` | ❌ Not started | ➖ Not applicable | — | | TWiki | `twiki` | ❌ Not started | ➖ Not applicable | — | | Vimwiki | `vimwiki` | ❌ Not started | ➖ Not applicable | — | | XWiki | `xwiki` | ➖ Not applicable | ❌ Not started | — | | ZimWiki | `zimwiki` | ➖ Not applicable | ❌ Not started | — | ### roff | Format | Names | Reader | Writer | Cargo features | | ------ | -------- | ---------------- | ---------------- | ---------------------- | | man | `man` | ✅ Usable | ✅ Usable | `read-man` `write-man` | | mdoc | `mdoc` | ❌ Not started | ➖ Not applicable | — | | ms | `ms` | ➖ Not applicable | ❌ Not started | — | | vimdoc | `vimdoc` | ➖ Not applicable | ❌ Not started | — | ### Word processor, ebook & notebook | Format | Names | Reader | Writer | Cargo features | | ----------------- | ---------------------- | ---------------- | ---------------- | -------------------------- | | Word | `docx` | ✅ Usable | ✅ Usable | `read-docx` `write-docx` | | EPUB | `epub` `epub2` `epub3` | ✅ Usable | ✅ Usable | `read-epub` `write-epub` | | FictionBook2 | `fb2` | ❌ Not started | ❌ Not started | — | | InDesign ICML | `icml` | ➖ Not applicable | ❌ Not started | — | | Jupyter Notebook | `ipynb` | ✅ Usable | ✅ Usable | `read-ipynb` `write-ipynb` | | OpenDocument Text | `odt` | ✅ Usable | ✅ Usable | `read-odt` `write-odt` | | OpenDocument | `opendocument` | ➖ Not applicable | ❌ Not started | — | | Rich Text Format | `rtf` | ✅ Usable | ✅ Usable | `read-rtf` `write-rtf` | | Spreadsheet | `xlsx` | ❌ Not started | ➖ Not applicable | — | ### XML & publishing | Format | Names | Reader | Writer | Cargo features | | ----------- | ----------------------------------------------------------------- | ---------------- | ---------------- | -------------- | | BITS | `bits` | ❌ Not started | ➖ Not applicable | — | | DocBook | `docbook` `docbook4` `docbook5` | ❌ Not started | ❌ Not started | — | | JATS | `jats` `jats_archiving` `jats_articleauthoring` `jats_publishing` | ❌ Not started | ❌ Not started | — | | TEI | `tei` | ➖ Not applicable | ❌ Not started | — | | Generic XML | `xml` | ❌ Not started | ❌ Not started | — | ### Bibliography | Format | Names | Reader | Writer | Cargo features | | ----------- | ------------ | ------------- | ---------------- | -------------- | | BibLaTeX | `biblatex` | ❌ Not started | ❌ Not started | — | | BibTeX | `bibtex` | ❌ Not started | ❌ Not started | — | | CSL JSON | `csljson` | ❌ Not started | ❌ Not started | — | | EndNote XML | `endnotexml` | ❌ Not started | ➖ Not applicable | — | | RIS | `ris` | ❌ Not started | ➖ Not applicable | — | ### Data, interchange & terminal | Format | Names | Reader | Writer | Cargo features | | ----------------- | ----------------------------------------------------------------------------------------- | ---------------- | ---------------- | ---------------------------- | | ANSI terminal | `ansi` | ➖ Not applicable | ❌ Not started | — | | BBCode | `bbcode` `bbcode_fluxbb` `bbcode_hubzilla` `bbcode_phpbb` `bbcode_steam` `bbcode_xenforo` | ➖ Not applicable | ❌ Not started | — | | CSV | `csv` | ✅ Usable | ➖ Not applicable | `read-csv` | | Pandoc JSON | `json` | ✅ Usable | ✅ Usable | `read-json` `write-json` | | Native Pandoc AST | `native` | ✅ Usable | ✅ Usable | `read-native` `write-native` | | OPML | `opml` | ✅ Usable | ✅ Usable | `read-opml` `write-opml` | | Plain text | `plain` | ➖ Not applicable | ✅ Usable | `write-plain` | | TSV | `tsv` | ✅ Usable | ➖ Not applicable | `read-tsv` | ## Extensions #### Supported `smart``strikeout``superscript``subscript``pipe_tables``footnotes``task_lists``autolink_bare_uris``tex_math_dollars``fenced_divs``bracketed_spans``hard_line_breaks``raw_html``header_attributes``fenced_code_attributes``inline_code_attributes``link_attributes``attributes``definition_lists``grid_tables``multiline_tables``simple_tables``table_captions``line_blocks``fancy_lists``example_lists``startnum``yaml_metadata_block``pandoc_title_block``auto_identifiers``gfm_auto_identifiers``implicit_header_references``implicit_figures``raw_attribute``inline_notes``native_divs``native_spans``markdown_in_html_blocks``raw_tex``citations``table_attributes``blank_before_blockquote``blank_before_header``mark``emoji``alerts``tex_math_single_backslash``tex_math_double_backslash``lists_without_preceding_blankline``intraword_underscores``backtick_code_blocks``fenced_code_blocks``escaped_line_breaks``space_in_atx_header``all_symbols_escapable``spaced_reference_links``short_subsuperscripts``mmd_title_block``mmd_header_identifiers``abbreviations``markdown_attribute` #### Recognized, behavior not yet modeled These names are already recognized internally, but the reader does not yet branch on the construct: `latex_macros``wikilinks_title_after_pipe``wikilinks_title_before_pipe``ascii_identifiers``mmd_link_attributes``old_dashes``east_asian_line_breaks``four_space_rule``literate_haskell``rebase_relative_paths``gutenberg``angle_brackets_escapable``ignore_line_breaks``raw_markdown`