Online text tools
Free online text tools for converting, cleaning, counting, and reshaping plain language. Convert case, remove duplicate lines, find repeated words, and clean text copied from PDFs or chat apps.
Case conversion
Change letter case for prose, headings, and identifiers. Inverse case is the Caps Lock plus Shift repair.
Sentence Case Converter
Capitalize the first letter of each sentence automatically.
Title Case Converter
Apply title capitalization rules to headings and names.
Upper Case Converter
Convert text to UPPERCASE.
Lower Case Converter
Convert text to lowercase.
Capitalized Case Converter
Capitalize the first letter of every word.
Alternating Case Converter
Convert text to aLtErNaTiNg cAsE.
Inverse Case Converter
Swap uppercase and lowercase letters.
Cleaning and editing
Join PDF wraps, drop duplicate lines, and strip characters before you publish or import.
Remove Line Breaks
Join lines into continuous text.
Duplicate Line Remover
Delete repeated lines while preserving first occurrence order.
Whitespace Remover
Collapse extra spaces and trim blank lines.
Find and Replace Text
Find and replace words or patterns across a document.
Character Remover
Remove specific characters, digits, or symbols from text.
Plain Text Converter
Strip markup and formatting to produce plain text.
Remove Text Formatting
Remove common inline formatting markers from text.
Counting and analysis
Word frequency, sentence counts, and sorted lists — not grammar or plagiarism scores.
Word Frequency Counter
Count how often each word appears in your text.
Sentence Counter
Count sentences, words, characters, and paragraphs.
Text Frequency Cloud
See which words dominate your text in a text-based frequency layout.
Duplicate Word Finder
Find words that appear more than once in your text.
Sort Words Alphabetically
Sort words in ascending order with optional uniqueness.
More in this category
Em Dash Remover
Replace em dashes and en dashes with your chosen character.
Invisible Text Generator
Hide text using zero-width Unicode characters.
Lorem Ipsum Generator
Generate placeholder paragraphs for mockups and layouts.
NATO Phonetic Alphabet Translator
Spell words using the NATO phonetic alphabet.
Number to Words Converter
Convert numbers into English words.
Phonetic Spelling Tool
Spell out words letter by letter phonetically.
Pig Latin Translator
Translate English text into Pig Latin.
Online Notepad
A simple notepad that saves drafts locally in your browser.
Remove Underscores
Replace underscores with spaces or another character.
Repeat Text Generator
Repeat a string multiple times with a custom separator.
Reverse Text Generator
Reverse characters, words, or lines in your text.
Roman Numeral Date Converter
Express calendar dates using Roman numerals.
About this category
What are text tools? They are browser utilities that change letter case, clean messy paste, count words, and transform plain language without installing desktop software. CaseSwitch runs most of them locally so drafts stay on your device — useful when you only need a transform, not a full word processor.
Popular text conversions start with sentence case for readable email and notes, title case for blog headings, UPPERCASE for labels, and lowercase for tags. Inverse case repairs the Caps Lock-plus-Shift mess before you apply sentence case. Alternating and capitalized case cover playful or UI-label needs. The homepage converter can switch styles without re-pasting.
Tools for cleaning copied text join PDF line wraps, collapse whitespace, strip characters, dedupe lists while keeping first-seen order, and run find-and-replace before you import a CSV or publish. Use them when Slack, email, or OCR dumps leave broken lines and invisible spaces.
Writers and students use these pages to fix Caps Lock drafts, format essay headings, and count words or sentences before publishing. Support teams clean ticket text; marketers tidy keyword lists. None of these converters invent proper nouns or brand spelling — restore iPhone, NASA, and similar capitals by eye.
Text tools for developers often pair with Code & Data: lowercase a label here, then convert to camelCase, snake_case, or a URL slug there. Word frequency helps spot overused terms in docs. These pages are not grammar checkers, plagiarism detectors, or citation managers — automated case is a first pass.
When you need a dedicated guide, open the matching tool page for examples and edge cases. Browse All Tools or the homepage popular list when you are exploring. Processing stays in your browser after the page loads, so you can disconnect and still convert.
Frequently asked questions
What are online text tools?+
Browser utilities that convert case, clean copied text, count words, and transform plain language without installing desktop software. CaseSwitch runs most of them locally on your device.
Which case tool should I open first?+
For a messy paragraph, use sentence case. For a heading, use title case. If Caps Lock inverted letters, use inverse case first. The homepage converter can switch styles without re-pasting.
Do these text tools upload my draft?+
No. Case conversion, cleaning, and counting run in this browser. You can turn off the network after the page loads and still convert.
Are these tools for writers and students?+
Yes — emails, essays, captions, and notes. Support and ops teams also clean exports here. They are not full word processors or citation managers.
Is a word frequency list the same as a word counter?+
The word frequency tool lists each word with a count so you can see overused terms. Character, word, sentence, and line totals also appear in the statistics bar on editor tools.