Text tools

Small, single-purpose converters for the things text does wrong: the wrong case, the wrong quotes, line breaks a PDF left behind, characters you cannot see. Every one of them runs in your browser — nothing is uploaded, nothing is stored.

Case conversion

Title, sentence, upper, lower — and the three programmers argue about.

Title Case Capitalises every word except the small ones — the headline convention.Sentence case One capital per sentence, everything else down.UPPERCASE Everything to capitals, accents and non-Latin scripts included.lowercase Everything down, the language-aware way.camelCase First word down, every word after it capitalised, spaces gone.snake_case Lowercase words joined by underscores.kebab-case Lowercase words joined by hyphens.aLtErNaTiNg cAsE Letters flip between lower and upper, one after the other.

Clean-up & lines

Whatever the paste dragged in: stray spaces, broken lines, duplicates.

Reverse text Last character first — emoji and accents stay in one piece.Remove extra spaces Collapses repeated spaces and tabs, trims the ends of every line.Remove line breaks One paragraph out of text a PDF broke into lines.Slugify (URL slug) A clean, lowercase, hyphenated URL segment.Remove accents é becomes e, ü becomes u — the diacritics come off.Character & word count Characters, words, lines and UTF-8 bytes, counted live.Sort lines Alphabetical, reversed, or by length.Remove duplicate lines Keeps the first of each line, in the original order.

Unicode & typography

Normalisation, invisible characters, codepoints and proper punctuation.

Unicode normaliser NFC, NFD, NFKC or NFKD — pick the form and see the difference.Remove invisible characters Strips zero-width spaces, joiners, bidi marks and the byte order mark.Text to Unicode codepoints Every character as U+XXXX.Unicode codepoints to text U+2014, 0x1F600 or plain hex back into characters.Remove emoji Strips emoji and their modifiers, leaves the words.Straight quotes to curly Typewriter quotes become proper opening and closing ones.Curly quotes to straight Smart quotes back to the plain ASCII ones.Hyphens to dashes -- becomes an en dash, --- an em dash, 3-5 a range.Three dots to an ellipsis ... becomes the single character …Fractions to single characters 1/2 becomes ½, 3/4 becomes ¾.Fix typography Quotes, dashes and ellipses in one pass.Apply ligatures fi becomes fi, fl becomes fl.Insert non-breaking spaces Glues numbers to their units so a line break cannot split them.Insert zero-width characters Puts an invisible zero-width space between every character.

Encode & decode

Base64, URL, HTML entities, hex, binary, Morse — both directions.

Base64 encode Text to Base64, UTF-8 throughout.Base64 decode Base64 back to readable text.URL encode Percent-encoding for query strings and path segments.URL decode Percent-encoding back to readable characters.HTML entity encode Escapes the five specials, and any character above ASCII.HTML entity decode &, — and … back to characters.Text to hex The UTF-8 bytes, two hex digits each.Hex to text Hex bytes back to UTF-8 text.Text to binary Eight bits per UTF-8 byte.Binary to text Groups of eight bits back to text.Text to Morse code Letters, digits and punctuation to dots and dashes.Morse code to text Dots and dashes back to letters.ROT13 Rotates every letter thirteen places. Run it twice to undo it.JSON / JavaScript string escape Quotes, backslashes, newlines and tabs escaped for a string literal.JSON / JavaScript string unescape \n and \u2014 back into real characters.

Styled text

Small caps, upside down, strikethrough — plain Unicode, no images.

Small caps Lowercase letters as ꜱᴍᴀʟʟ ᴄᴀᴘɪᴛᴀʟꜱ.Upside-down text Flips the letters and reverses the line: ʇxǝʇ.Strikethrough text A̶ ̶l̶i̶n̶e̶ ̶t̶h̶r̶o̶u̶g̶h̶ every character.Underline text U̲n̲d̲e̲r̲l̲i̲n̲e̲d̲ with a combining mark.Superscript Raised characters: ˢᵘᵖᵉʳˢᶜʳⁱᵖᵗ.Subscript Lowered characters: H₂O.Repeat text The same text, as many times as you ask.Number the lines Puts 1., 2., 3. in front of every line.Show the whitespace Spaces, tabs and non-breaking spaces made visible.

Looking for a single character rather than a conversion? The category browser covers 40,000+ Unicode characters and emoji, and the lexicon explains the vocabulary these tools work in — codepoints, normalisation, grapheme clusters.