CSV to Markdown Table Converter

How to use

1. 1Paste your CSV, TSV, or pipe-separated text into the input. Copying directly from Excel, Google Sheets, Numbers, or Airtable usually pastes as TSV, which the auto-detector handles.
2. 2Leave Delimiter on Auto and check the detected label below the picker, or pick Comma, Tab, Semicolon, or Pipe explicitly if your data is unusual.
3. 3Toggle First row is the header on or off depending on whether the first parsed row contains column titles. With it off, headers are filled in as Column 1, Column 2, etc.
4. 4Pick an alignment: Auto right-aligns numeric columns and left-aligns the rest, or pick Left, Center, or Right to apply the same alignment to every column.
5. 5Choose Aligned for human-readable raw markdown that lines up in a code editor, or Compact for the smallest valid table.
6. 6Click Copy markdown to copy the table, or use Replace input with markdown to round-trip the result back into the input area.

About this tool

CSV to Markdown Table Converter takes a block of comma-separated, tab-separated, semicolon-separated, or pipe-separated values and turns it into a GitHub-Flavored Markdown pipe table that drops cleanly into a README, GitHub or GitLab issue, Notion page, Hugo or Jekyll post, Obsidian note, MkDocs site, or anywhere else GFM is rendered. Delimiters are auto-detected from your input by scoring each candidate (comma, tab, semicolon, pipe) on column-count consistency across the first few rows, and the detected delimiter is shown above the controls so you can verify it. You can also pin a specific delimiter when the auto-detector picks the wrong one. The CSV scanner is RFC-4180-style: quoted fields are respected, doubled quotes inside quoted fields decode to a single quote, embedded newlines inside quoted fields are preserved through to the rendered Markdown as a <br> tag, and both LF and CRLF row terminators work. A first-row-as-header toggle controls whether the parsed top row becomes the table header or whether the tool synthesizes Column 1, Column 2, etc. so the output is always a valid table. Per-column alignment can be left, center, right, or Auto: in Auto mode every column is right-aligned when all of its non-empty cells parse as numbers (including 1,234.56-style thousand separators and scientific notation) and left-aligned otherwise, which is the convention most readers expect for numeric data. Two output styles are supported: Aligned pads each cell to the longest cell in its column so the raw markdown is human-readable in a code editor and visually mirrors the eventual rendered table, and Compact emits the smallest valid table with single-space padding for situations where you care about source size more than legibility. Cell content is escaped for GFM correctness: literal pipes are backslash-escaped, internal newlines become <br>, and tabs are collapsed to a single space, so cells with awkward content never break the row structure. A live preview below the markdown shows the table the way GitHub or any other GFM viewer will render it, with column alignment matching the separator row. Useful for turning Excel, Google Sheets, Numbers, or Airtable exports into README tables, prepping data tables for technical blog posts, posting tabular data inside GitHub issues without screenshots, building changelog or feature-comparison tables, and converting any spreadsheet you can copy as TSV into a documentation-ready Markdown table. Everything runs locally in your browser, so the rows you paste, including any internal data, never leave your device.

Free to use. Works in your browser. No signup, no login.