Markdown to HTML is a markdown converter API that parses markdown syntax and converts it to clean, semantic HTML suitable for web rendering and content management.

Markdown to Image converts markdown text into visual image representations, rendering content as PNG, JPEG, or WebP images.

Markdown to PDF is a PDF generator API that converts markdown text into professionally formatted PDF documents and returns a temporary download URL for each file.

Math Calculator performs mathematical operations including arithmetic, number properties, base conversions, and expression evaluation.

Mayan Calendar converts Gregorian dates to the ancient Mayan calendar system. Returns the Long Count, Tzolkin (260-day sacred calendar), and Haab (365-day civil calendar) dates.

Maze Generator creates random mazes using recursive backtracking algorithm with customizable size and difficulty.

Meeting Time Converter transforms meeting times between any two timezones, calculating time differences and UTC offsets for global coordination.

Menstrual Cycle Calculator is a period tracker API that predicts future menstrual cycles, fertile windows, and ovulation dates from the last period date and the average cycle and period length.

Metadata Extractor is a website metadata extraction API that pulls HTML meta tags from any submitted URL, returning the page title, meta description, author, robots directives, and language. Paid tiers add Open Graph tags, JSON-LD schemas, and favicons.

Meteorite Landings searches recorded meteor strikes by specimen name and minimum mass. Each record includes the official specimen name, meteorite classification, mass in grams, and the recorded fall year.

MIME Type Lookup matches file extensions to MIME types, categories, and default character encodings, or returns matching extensions for any media type. Paid plans add gzip compressibility flags.

Minimum Wage provides current minimum wage rates for all US states plus the federal minimum. Includes tipped minimum wages, effective rates (higher of state or federal), and historical federal minimum wage data.

Moon Phases calculates the current lunar phase, illumination percentage, and lunar age for today. It reports waxing or waning status, Earth-moon distance, and emoji representations, while paid plans add custom date queries and full moon tracking.

Moon Position calculates the moon's altitude in the sky for any latitude and longitude coordinates. Provide an optional time of day to determine lunar elevation; paid plans add custom dates, azimuth, and distance.

Moonrise Moonset calculates exact moonrise and moonset times for any geographic coordinate. It outputs ISO 8601 timestamps for lunar rise and set events, with paid plans adding moon phase details and date selection.

Morse Code is a Morse code translator and decoder API: it converts plain text to Morse code dots and dashes and translates Morse back into text. It provides character counts, dit and dah totals, and validation status, while paid plans add downloadable audio tones.

Mortgage Calculator computes monthly and annual loan payments from principal, interest rate, and term. It breaks totals down by principal, interest, property tax, insurance, and HOA dues, with paid plans adding full amortization schedules.

Mortgage Rate reports weekly US fixed mortgage rates for 15-year and 30-year terms. Pass the loan term to get the latest percentage rate, survey date, and direction of weekly change.

MurmurHash generates fast, non-cryptographic hashes using the MurmurHash3 algorithm. Ideal for hash tables, data partitioning, bloom filters, and checksums where cryptographic security isn't needed.

Music Note Generator is a musical note generator API that creates high-quality WAV audio files of musical notes with precise frequency generation, plus customizable duration on paid plans.