FormatCalc library
Document converters
without the noise.
Turn Markdown, HTML, images, and tabular output into reusable documents without uploading the source. Preview generated files carefully because page size, fonts, wrapping, and renderer support can affect the final layout. Choose a tool below to get started—no account required.
Markdown to HTML
Render Markdown as clean, copy-ready HTML.
HTML to Markdown
Turn HTML content into portable Markdown.
Markdown to Plain Text
Remove Markdown syntax while keeping readable content.
HTML to Plain Text
Extract readable text from HTML without its markup.
Markdown to Jira Table
Convert a Markdown table into Jira wiki table markup.
Jira Table to Markdown
Turn Jira wiki table markup into a Markdown table.
Markdown to Confluence Wiki Markup
Convert common Markdown into Confluence wiki markup.
Markdown to Slack Message Format
Adapt Markdown links and emphasis for Slack messages.
Markdown to Discord Message Format
Clean Markdown into a Discord-friendly message format.
Markdown Link Extractor
Extract Markdown links into a clean CSV list.
HTML Link Extractor to CSV
Extract HTML links, labels, and attributes as CSV.
Markdown Frontmatter to JSON
Extract YAML frontmatter from a Markdown document as JSON.
JSON to Markdown Frontmatter
Convert a JSON object into YAML frontmatter.
YAML Frontmatter to JSON
Convert YAML frontmatter or YAML metadata into formatted JSON.
JSON to README Table
Turn JSON objects or records into a README-ready Markdown table.
Markdown to PDF
Create a text-only PDF locally. Formatting and images are omitted; unsupported characters are reported.
HTML to PDF
Create a text-only PDF locally. Formatting and images are omitted; unsupported characters are reported.
Image to PDF
Turn a PNG, JPEG, or browser-readable image into a fitted PDF page locally.