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Convertto

Free Online Text Tools

Change case, count words, sort lines, remove duplicates, diff, encode and transform text.

Convertto offers 40+ text tools for changing case, counting words and characters, sorting and deduplicating lines, finding and replacing with regex, comparing two texts, and converting to Morse, NATO or Unicode styles. Text is processed entirely in your browser and never sent to a server.

78 tools in this category

All text tools

Acronym GeneratorTurn a phrase into an acronym or initialism, with control over small words and separators.
Add Line NumbersPrefix every line with a sequential number, with a custom start, separator and zero padding.
ASCII Art Text GeneratorTurn words into large ASCII banner text for terminals, READMEs and code comments.
ASCII Table FormatterTurn CSV or tab-separated text into an aligned plain-text, Markdown or box-drawing table.
AZW3 to EPUB ConverterConvert Kindle AZW3 format to open EPUB format.
Bionic Reading ConverterBold the leading letters of each word to guide the eye through long text.
Case ConverterConvert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more.
Checklist to MarkdownTurn a plain list into Markdown task lists, HTML checkboxes or a numbered outline.
Columns to Lines ConverterSwitch between a delimited single line and one item per line, in either direction.
Email, URL & Number ExtractorPull emails, URLs, IP addresses, phone numbers or hashtags out of any text.
DOC to DOCX ConverterRebuild a mislabelled or malformed .doc as a clean, modern .docx.
DOCX to DOC ConverterSave a Word document in the legacy format older software can open.
EPUB to HTML ConverterExtract chapter HTML markup from EPUB files.
EPUB to PDF ConverterConvert EPUB e-books into printable PDF documents.
EPUB to Text ConverterExtract plain text from EPUB e-books.
EPUB to Word ConverterConvert EPUB e-books into editable Word (.docx) documents.
Fancy Text GeneratorConvert text into bold, italic, script, monospace and double-struck Unicode styles.
Find and Replace TextReplace text across a whole document with plain matching or full regular expressions.
Glitch Text GeneratorCreate corrupted Zalgo-style glitch text using stacked Unicode combining marks.
HTML to EPUB ConverterPackage HTML articles into a valid, reflowable EPUB 3 ebook.
HTML to JPG ImageRender self-contained HTML into a JPG image.
HTML to JSON ParserParse an HTML document into a structured JSON tree of tags, attributes and text.
HTML to Markdown ConverterConvert HTML into clean, readable Markdown.
HTML to PNG ImageRender self-contained HTML into a lossless PNG screenshot.
HTML to SVG ConverterWrap HTML into a scalable SVG with the markup kept as live content.
HTML to Plain TextStrip HTML tags and extract readable text with the paragraph breaks intact.
HTML to Word ConverterConvert HTML into a real Word document with heading styles and tables.
HTML to XML ConverterConvert HTML into well-formed XHTML that an XML parser will accept.
Leetspeak ConverterConvert normal text into 1337 5p34k, with light or heavy substitution.
Letter Frequency AnalyserCount letter and character frequencies — useful for cryptograms and puzzle solving.
Line SorterSort lines alphabetically, numerically, by length or in reverse — with natural-order support.
Wrap Lines in Quotes or BracketsAdd a prefix and suffix to every line and join them — build SQL IN lists, arrays and CSV rows.
List Comparison & Set OperationsFind items in both lists, in one only, or combined — union, intersection and difference.
List Randomizer & ShufflerShuffle a list into random order — for draws, pairings, running orders and sampling.
Markdown Editor & ViewerWrite markdown with a live preview, outline, formatting toolbar and one-click HTML, PDF or .md export.
Markdown to DOCX ConverterExport Markdown as a DOCX with Word heading styles, lists and grid tables.
Markdown to JSON ConverterParse Markdown into a structured JSON document tree with headings, lists and tables.
Markdown to Presentation SlidesTurn a Markdown outline into a real PowerPoint deck — one slide per heading.
Markdown to Plain TextStrip Markdown formatting down to clean, readable plain text.
Markdown to Word ConverterConvert Markdown into a real, editable Word (.docx) document with proper heading styles.
MOBI to EPUB ConverterConvert Kindle MOBI books into universal EPUB format.
MOBI to PDF ConverterConvert Kindle MOBI files to PDF.
Morse Code TranslatorTranslate text to Morse code and decode Morse back to plain text, letters and numbers included.
NATO Phonetic Alphabet ConverterSpell any word using the NATO phonetic alphabet — Alfa, Bravo, Charlie — for clear radio and phone use.
Pig Latin TranslatorConvert English to Pig Latin and back, with both the classic and consonant-cluster rules.
Readability Score CheckerScore text with Flesch, Gunning Fog, SMOG, Coleman-Liau and ARI, and see the reading age.
Remove Accents & DiacriticsConvert accented characters to plain ASCII — café becomes cafe, naïve becomes naive.
Remove Duplicate LinesDelete repeated lines from a list, keeping the first occurrence of each unique line.
Remove Line BreaksTurn multi-line text into a single line, joining with a space, comma or custom separator.
Sentence SplitterBreak a paragraph into one sentence per line, handling abbreviations and decimals correctly.
URL Slug GeneratorTurn any title into a clean, SEO-friendly URL slug with accents stripped and symbols removed.
String Byte Size CalculatorMeasure text in UTF-8, UTF-16 and UTF-32 bytes, code points and grapheme clusters.
String Escaper & UnescaperEscape strings for JSON, JavaScript, CSV, SQL, XML or shell — and unescape them again.
Text CleanerStrip smart quotes, invisible characters, ligatures and stray whitespace pasted from Word or a PDF.
Text Padding ToolPad every line to a fixed width with any character, on the left, right or both sides.
Text RepeaterRepeat any text a set number of times, separated by newlines, spaces or nothing.
Text ReverserReverse text by character, word or line — useful for puzzles, testing and mirrored strings.
Text ShufflerRandomly reorder lines, words, sentences or characters, with a seed for repeatable results.
Text Similarity CheckerCompare two texts with Levenshtein distance, Jaccard, cosine and Dice coefficients.
Word & Character Frequency CounterCount how often each word, character or line appears in your text.
Text TruncatorShorten text to a character, word or sentence limit without cutting words in half.
Text Wrap & TruncateHard-wrap text at a line width, or truncate it to a maximum length.
Title Case ConverterApply AP, Chicago, APA or MLA title capitalisation rules — each treats small words differently.
Upside Down Text GeneratorFlip text upside down using Unicode look-alike characters, readable when rotated 180°.
Whitespace RemoverStrip extra spaces, tabs, blank lines and trailing whitespace from any text.
Word & Character CounterCount words, characters, sentences and paragraphs, with reading time and readability.
Word Frequency CounterCount how often each word appears, with stop-word filtering and a frequency chart.
Word to EPUB ConverterTurn a Word document into a reflowable EPUB 3 ebook with chapters.
Word to HTML ConverterConvert a Word document into clean, semantic HTML you can publish.
Word to JPG ConverterRender the pages of a Word document as JPG images.
Word to JSON ConverterParse a Word document into a structured JSON document tree.
Word to Markdown ConverterConvert a Word document into Markdown with real headings, lists and tables.
Word to PNG ConverterRender the pages of a Word document as lossless PNG images.
Word to PowerPoint ConverterTurn a Word outline into a PowerPoint deck — one slide per heading.
Word to RTF ConverterConvert a Word document into Rich Text Format that opens anywhere.
Word to SVG ConverterRender Word pages as vector SVGs with live, selectable text.
Word to Text ConverterExtract the plain text of a Word document with its structure intact.
Word to XML ConverterConvert a Word document into clean structural XML.

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