Converter

Convert between Mandarin and written Cantonese (嘅、咗、喺、佢) — basic dictionary version.

Convert Chinese between Simplified, Traditional, Taiwan and Hong Kong variants — all 8 OpenCC modes.

Convert data storage units

Date arithmetic + day of week

Days/months/years between dates

Convert between KB, MB, GB, TB

Add hiragana readings above the kanji in Japanese text — all of them, or only beyond a school grade

Open any Hangul syllable into its letters and code points — and fix Korean typed on the wrong keyboard

Read Hanja in Korean with the spelling rules applied, or list every Hanja for a syllable

Convert romanized Hokkien between Pe̍h-ōe-jī (POJ) and Tâi-lô, with tone marks or tone numbers

Reiwa, Heisei, Shōwa, Taishō and Meiji dates to Gregorian and back — exact at every changeover

Hangul to Revised Romanization and McCune–Reischauer, spelled from the pronunciation as both systems require

Convert Japanese text between old kanji forms (旧字体) and the modern Jōyō forms (新字体), both ways

Convert between Mainland Mandarin (普通话), Malaysian Mandarin (马来西亚华语) and Singaporean Mandarin (Singdarin) — with loanwords, particles, and Cantonese-influenced word order.

Kana to romaji in every system — the official 2025 standard, Hepburn, passport, Kunrei and Nihon-shiki

HH:MM:SS arithmetic + decimal

Convert times across ASEAN and global timezones — perfect for remote teams and international meetings.

Convert between tokens, words and characters for LLM prompts

Convert length, weight, temperature, area, volume and speed — instantly, free.

ISO 8601 + US week numbering