Convert text and numbers into Unicode subscript characters instantly — perfect for chemical formulas (H₂O, CO₂), mathematical notation and anywhere subscript text is needed.
Type or paste your text — numbers and supported letters are converted to Unicode subscript characters instantly.
All output updates in real time as you type — no button click needed.
Click the Copy button next to any result to copy it to your clipboard, ready to paste anywhere.
A subscript is text that appears slightly below the normal line of type, often in a smaller size. It is commonly used in chemistry (H₂O), mathematics (x₁ + x₂) and scientific notation.
HTML subscript uses the <sub> tag and only works in HTML documents. Unicode subscript characters are actual Unicode code points that work anywhere — messaging apps, social media, plain text files and more.
Numbers (0–9) and some letters have official Unicode subscript equivalents. All digits can be subscripted. Letters with subscript support include a, e, i, o, u, x, y, n, m, h, k, l, p, s, t and a few more.
Yes — paste the Unicode subscript characters generated by this tool and they will appear correctly in WhatsApp, Discord, Telegram, Twitter and most modern apps.
Not all letters have Unicode subscript equivalents. The Unicode standard only includes subscript characters for numbers and a subset of Latin letters. Letters without subscript equivalents are left unchanged.
Yes. Everything is processed locally in your browser. No text is ever sent to a server.
