Free online tools

Converters

Browse 19 converters. Choose a tool to get started.

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Binary Translator

Text to binary and back, with full UTF-8 support for emoji.

Business Days Calculator

Add or count business days, weekends skipped.

Clothing Size Converter

Convert US, UK, EU & JP clothing sizes

Cooking Measurement Converter

Cups ↔ grams for 51 ingredients, density-accurate for US recipes.

CSV to JSON Converter

Paste CSV or upload a .csv file and get clean, pretty JSON keyed by your header row.

Days Between Dates Calculator

Days, weeks, business days between dates

Decimal to Fraction Calculator

Convert decimals to fractions in lowest terms.

GIF to MP4 Converter

Convert GIFs to lightweight MP4 videos.

HEX to RGB Color Converter

Convert HEX colors to RGB, HSL, and CMYK with a live preview.

Military Time Converter

Convert 24-hour military time to 12-hour clock and back — plus full chart.

Morse Code Translator

Text to Morse and back, with real audio playback and speed control.

Number to Words Converter

Spell numbers as English words.

Ring Size Converter

US/UK/EU/JP ring sizes + mm diameter, printable guide.

Roman Numeral Converter

Convert numbers to Roman numerals and back, instantly.

Running Pace Calculator

Pace, speed, time, and race splits instantly

Shoe Size Converter

Convert US, UK and EU shoe sizes instantly.

Time Zone Converter

Compare world times instantly.

Unit Converter

Imperial to metric, live two-way conversion.

Unix Timestamp Converter

Epoch to date and back — auto-detects s/ms/µs/ns.

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