Apply Unicode text styles
See your text in bold, italic, cursive, fraktur, squared, and regional-flag styles — all using real Unicode characters so they survive copy-paste anywhere.
How Unicode styling works
Unicode has dedicated mathematical-alphanumeric blocks for bold, italic, fraktur, script, and squared letters. We map ASCII to those code points so the styled text travels everywhere.
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Type text
Plain ASCII works best — accents and CJK pass through.
Inputs are treated as UTF-8 throughout the pipeline and validated client-side as you type — nothing dispatches until the value is well-formed.
typeinpututf-8client-sidevalidatedinput · texttext · setHello
loaded · parsedclient-side - 02
Pick a style
Each row is a real Unicode style.
Each toggle re-computes through a memoised hook, so flipping options never resets your input and the UI stays snappy on large inputs.
styleoptionslivememoisedtogglesstyle · memoisedbold · live𝐇𝐞𝐥𝐥𝐨
options set · memoisedlive - 03
Copy
Click Copy on any row to grab that style.
Randomness — where used — comes from
crypto.getRandomValues, neverMath.random. Heavy work sits inuseMemo.copycomputeinstantlocaldeterministicclick · instantcopy · computedCopied
computed · instantinstant - 04
Paste anywhere
Twitter, Slack, Markdown — Unicode wins.
Copy writes through
navigator.clipboardand downloads use aBlob— zero network traffic. Same input plus same options always yield the same bytes.pastecopydownloadzero-networkreproducibleok · copiedready · copiedPasted
shipped · ready to shipsuccess
Pro tips for everyday utilities
Reach for crypto.getRandomValues
Cryptographically random for IDs, tokens, salts. Math.random is for animation and games, not security.
Mock data with seeds
Faker-style libraries can be seeded so tests are reproducible. Embed the seed in the fixture file.
Reference cards beat memory
Cheatsheets for Vim, Git, Docker, Linux signals are faster than man pages when you’re mid-flow.
Browser APIs vary
Touch events, gamepads, and clipboard differ across vendors. Feature-detect before use.
Persist in the right place
localStorage for user preferences, sessionStorage for transient state, IndexedDB for structured data.
When to fake text styles
Social posts, bios, headers without markdown.
Twitter bold
Twitter doesn't support markdown — Unicode bold works. Random values come from crypto.getRandomValues — cryptographically secure for tokens, salts, and session IDs. Math.random is deterministic enough for animations but predictable enough to be a security bug.
CSPRNG-backedInstagram bios
Cursive/fraktur for emphasis in plain-text fields. Pair with hashids, ULID, or UUID v7 when you need both random and sortable — useful for primary keys, public-facing IDs, and event log ordering without a sequence column.
reproducibleLinkedIn headers
Stand out without HTML support. Output is deterministic given the same seed, so fixtures and tests stay reproducible across CI runs and contributor machines. Embed the seed in the fixture file for full replay.
snappySlack jokes
Squared letters for retro vibes. Heavy work runs through useMemo so the UI stays snappy on large inputs. Same input + same options yields identical bytes — the kind of stability snapshot tests rely on.
feature-detectedStream titles
Visual variety in channel names. Storage tools persist to the right backend: localStorage for user preferences, sessionStorage for transient state, IndexedDB for structured data. Pick the right shelf and quota worries disappear.
deterministicGame tags
Regional indicators form country flags when paired. Browser feature detection: clipboard, fullscreen, gamepad, and Web Bluetooth APIs gracefully fall back when unavailable. No surprise white screens on Safari or older Firefox.
production-readyFrequently asked questions
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Tell us what you need. We ship the top requests every two weeks.