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Text Formatting Tools for Headlines, Code and Posts

Case ConverterSlug GeneratorUpside Down TextBold Text GeneratorFancy Text GeneratorJSON Formatter & Validator

Case Converter

UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.  

Slug Generator

Turn any title into a clean, SEO-friendly URL slug.   <

Upside Down Text

Flip text upside down with Unicode — ɯɐǝɹʇs ǝɥʇ ǝsɹǝʌǝɹ.

Bold Text Generator

Make 𝗯𝗼𝗹𝗱, 𝘪𝘵𝘢𝘭𝘪𝘤 and 𝚖𝚘𝚗𝚘𝚜𝚙𝚊𝚌𝚎 text for social media — no fonts needed.

Fancy Text Generator

One text, twelve stylish Unicode looks — copy any style in one click.

JSON Formatter & Validator

Beautify, minify and validate JSON with clear error messages.  
These text formatting tools restyle text in one click — eleven cases, clean slugs, bold and fancy Unicode styles, and a JSON formatter — free in your browser. Use them to change text case online for headlines, posts and code identifiers — every style previews live on your real text before you copy it. Not sure where to start? The case converter handles the everyday restyles, the slug generator prepares titles for the web, and the bold text generator makes social posts stand out. The guide below matches each formatting job to its tool. Every tool in this collection is free, works on any device, and processes your text locally in your browser — nothing is uploaded or stored. Pick any tool above to get started; results are instant.

Which formatting tool do I need?

Six tools, six kinds of restyle. Find the job you are doing — each line names it and points at the tool.
  • A headline, sentence or block of code is in the wrong case → Case Converter — eleven case styles in one pass, from Title Case and Sentence case to camelCase and snake_case.
  • A title must become a web address → Slug Generator — lowercase, accent-free, hyphen-joined slugs with an optional maximum length.
  • A social post needs emphasis but the app has no formatting toolbar → Bold Text Generator — bold, italic, monospace and double-struck Unicode that survives copy-paste.
  • A name, bio or headline needs real flair → Fancy Text Generator — twelve decorative Unicode styles, from script and fraktur to circled letters.
  • JSON arrived as one unreadable line — or stopped working entirely → JSON Formatter & Validator — pretty-printing and minifying, with error messages that name the line and column.
  • You want a playful flip for a post, a comment or a puzzle → Upside Down Text — every letter turned with look-alike Unicode, flipped line by line.
Case and formatting are finishing touches: do them last, on final text, and the restyle never has to be redone. Every tool on this shelf works as you type and runs entirely in your browser, so drafts of any sensitivity are safe to style here.

Text Formatting Tools FAQs

Are the Case & Formatting tools really free?Yes — all six are completely free, with no account, no usage limits and no locked styles or options.
Is my text uploaded anywhere?No. Every conversion runs with JavaScript inside your own browser, so headlines, drafts and code snippets never leave your device.
Which tools should I use for a blog post title?Two, in order: the Case Converter to put the title in Title Case, then the Slug Generator to turn the finished title into the post’s URL. They are built to be chained — one tool’s result pastes straight into the next.
Why do styled letters sometimes show as boxes?Bold and fancy text are Unicode symbols, not formatting. Current phones and browsers render them all; very old devices and minimal fonts may lack a few of the rarer characters and show boxes instead.
Will a slug from here work in WordPress and other CMS platforms?Yes — the output follows the standard slug rules those platforms use themselves: lowercase letters, numbers and single hyphens, with no spaces or punctuation to break a URL.
Can search engines read bold and fancy text as words?No — they treat styled letters as symbols. Style a headline if you like the look, but keep the searchable, meaningful copy of your page in plain text.