Subscript Generator ₛₘₐₗₗ ₗₒwₑᵣₑd ₜₑₓₜ
This free subscript generator turns letters, numbers and symbols into Unicode subscript text that sits below the baseline — H₂O, CO₂, C₆H₁₂O₆ or ₗᵢₖₑ ₜₕᵢₛ. The subscript is plain text, not formatting, so it pastes cleanly into chats, notes, spreadsheets, social media bios and any field without a subscript button.
Subscript characters this generator produces
Unicode's Superscripts and Subscripts block defines every subscript digit and the common math signs, but only a partial alphabet. The subscript generator uses those official characters first and fills a couple of gaps with look-alike glyphs from the Phonetic Extensions block. The table shows exactly which characters convert and which stay as normal letters.
| Input | Subscript output |
|---|---|
| a b c e h i j k l m | ₐ ᵦ ꜀ ₑ ₕ ᵢ ⱼ ₖ ₗ ₘ |
| n o p r s t u v x | ₙ ₒ ₚ ᵣ ₛ ₜ ᵤ ᵥ ₓ |
| d f g q w y z | no subscript form — left unchanged |
| 0 1 2 3 4 5 6 7 8 9 | ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ |
| + − = ( ) | ₊ ₋ ₌ ₍ ₎ |
Seven lowercase letters (d, f, g, q, w, y, z) and all uppercase letters have no subscript in Unicode, so they pass through unchanged rather than being replaced with something misleading. Letters b and c have no official subscript either; the tool substitutes ᵦ (a subscript beta) and ꜀ so short words still read correctly. Digits and math signs are fully covered, which is why chemical formulas and indices always convert perfectly.
How to use the subscript generator
- Type or paste your text into the box at the top of this page. You can mix normal and lowered text: type just the “2” in H2O, copy the result and place it after the H.
- Pick a style. Plain subscript is what most people need; the strikethrough and underline variants add a combining mark to every lowered character.
- Click “Copy” next to the result you want. The characters are copied as plain text.
- Paste anywhere — a chemistry note, a spreadsheet cell, a Discord message, a social media bio or a text field that has no formatting toolbar.
Tip: for a full formula such as C6H12O6, type only the digits (6 12 6) into the subscript generator, then assemble C₆H₁₂O₆ by pasting each lowered number in place.
Where to use subscript text
Subscript in chemical formulas
Write H₂O, CO₂, NaCl, C₆H₁₂O₆ and SO₄²⁻ in plain-text messages, quiz apps and forum posts where a rich-text editor isn't available.
Subscript indices in math
Show sequence terms and variables like x₁, x₂, aₙ or vₘₐₓ in notes, code comments and messaging apps.
Small subscript text for social media
Lowered letters give a subtle, understated look for Instagram captions, TikTok bios, Discord nicknames and Twitter/X posts.
Subscript bases and units
Type log₂, log₁₀, pKₐ or t₁/₂ correctly in study notes and spreadsheets without changing the font.
Subscript generator FAQ
How do I type subscript on a phone or keyboard?
Standard keyboards have no subscript keys at all. The subscript generator solves this: type normally, copy the converted text and paste it. On a computer you can also insert single characters with Alt codes (Windows) or the Character Viewer (Mac), but converting a whole formula here is much faster.
Why aren't some letters converted to subscript?
Unicode simply never defined subscript versions of d, f, g, q, w, y, z or any capital letter. Rather than invent misleading substitutes, the tool leaves those letters unchanged so your text stays readable. Every digit and math sign does convert.
Is subscript text a font?
No. The output is made of real Unicode characters, not a font or rich-text formatting. That's why it survives copy and paste into places that strip formatting, such as usernames, plain-text emails and chat apps.
Will subscript characters display everywhere?
Digits like ₂ and ₁₀ display correctly on virtually every modern device. A few of the lowered letters come from the Phonetic Extensions block, which very old fonts may lack — in that rare case you'd see a box instead of the letter.
Can I convert superscript or small caps too?
Yes. Use the dedicated superscript generator for raised text (x², 10⁶), or the main small text generator to get small caps, superscript and subscript output side by side.
Is the subscript generator free?
Completely free, no sign-up, and the conversion runs in your browser — nothing you type is sent to a server.