Step 1 / source
Choose the source
Drop one file here
Choose the one markdown table you want to turn into utf-8 tsv table.
Checking publication status...LOCAL TABLE CONVERTER / MARKDOWN TABLE TO TSV
Markdown Table to TSV
Extract exactly one rectangular GitHub-style Markdown table into formula-protected UTF-8 tab-separated text for spreadsheet review.
Processed in this browserOne UTF-8 .md or .markdown file up to 5 MB containing one header, one valid delimiter row, and up to 50,000 data rows, 200 columns, and 1,000,000 cells.
MD - one TSV table
No file upload
This operation runs with browser APIs. Nirmion receives catalogue requests, not the selected source bytes.
Original stays unchanged
The converter creates a separately named output. It never writes back into the source file.
Bounded work
One UTF-8 .md or .markdown file up to 5 MB containing one header, one valid delimiter row, and up to 50,000 data rows, 200 columns, and 1,000,000 cells.
Plain-language method
How Markdown Table to TSV works
The converter requires one header row and a valid dash delimiter row, validates every data row against the same width, decodes escaped pipes, backslashes, entities, and br line breaks, serializes tab-separated fields, and optionally protects formula-like text.
- 01Choose a valid source
Provide one table only, with a header, at least three dashes per delimiter cell, and the same number of cells on every row.
- 02Review the conversion choices
Keep formula protection enabled when spreadsheet software will open the TSV. It intentionally prefixes risky leading text with an apostrophe.
- 03Inspect the separate result
The result ends in _nirmion_tools.tsv and includes a UTF-8 byte-order mark for common spreadsheet applications.
Useful when
Practical jobs this tool handles
- Move a documentation matrix into a spreadsheet.
- Prepare a Markdown comparison table for analysis.
- Recover approved table data from a README.
Before converting
Check the source and destination rules
- Remove prose outside the intended table.
- Confirm every row has the same width.
- Keep formula protection on for untrusted values.
Know the boundary
Know what the destination format cannot keep
Markdown links, emphasis, code spans, alignment, and other inline syntax are retained as text rather than interpreted. TSV cannot preserve Markdown presentation.
Quick answers
Questions before you convert
The conversion contract is deliberately explicit.
Are alignment markers exported?
No. The delimiter row controls Markdown layout and is not data.
Why is an apostrophe added to some cells?
It prevents common spreadsheet applications from treating untrusted text as a formula.
Can the file contain several tables?
No. One explicit table avoids accidental merging.