Last updated: October 2026
Subscript generator
Short answer: type your text and it drops to subscript unicode — smaller, lowered characters for formulas and notation. Copy and paste into documents, chats and posts.
Subscripts are the lowered characters of chemistry and math: H₂O, CO₂, x₁. Most keyboards and chat apps have no subscript key, so students and teachers fake it with plain text. The generator maps digits and the available subscript letters to real unicode subscript characters, so formulas look correct anywhere unicode works.
H2O → H₂O CO2 → CO₂
Where to use subscript text
Short answer: anywhere formulas appear without a formula editor — chemistry homework, study notes, Discord study groups, forum posts and captions.
- Chemistry — H₂O, CO₂, C₆H₁₂O₆ written correctly in plain chat.
- Math notation — x₁, x₂ for sequences and indices.
- Notes — footnote-style markers in plain text.
Frequently asked questions
What is subscript text?
Subscript text is characters rendered smaller and lowered below the baseline — the notation used for chemical formulas (H₂O) and math indices (x₁). This generator maps your input to unicode subscript characters.
Which letters have subscript forms?
Unicode defines subscript digits ₀-₉ and a subset of letters (a, e, h, i, j, k, l, m, n, o, p, r, s, t, u, v, x). Letters without a subscript code point, like b or z, are left unchanged rather than faked.
Where can I paste subscript text?
Documents, study notes, Discord, WhatsApp, forum posts and anywhere else unicode text is accepted.
Is the subscript generator free?
Yes — unlimited conversions, free forever. No account, no limits, no watermark.
Is my text private?
Completely. The conversion runs locally in your browser with JavaScript — what you type is never sent to a server, stored, or tracked.