Free online formatters

10 formatters that run entirely in your browser — free, no signup, no tracking. Part of the Text & Code group.

• Case ConverterThis online case converter tool transforms your text to uppercase, lowercase, title case, or sentence case. Paste your text and convert.
• JSON FormatterThis JSON Formatter tool helps you pretty-print JSON data. It indents and structures your JSON for better readability and debugging.
• Text CleanerText Cleaner — free online tool. The most common source of stray spaces is copy-paste from PDFs, which insert them between words and lines. Works on mobile and offline.
• Duplicate Line RemoverDuplicate Line Remover — free online tool. Matching is on the trimmed line, so trailing spaces do not create a false duplicate — but "Delhi" and "delhi" are treated as different entries. Works on mobile and offline.
• Markdown PreviewMarkdown Preview — free online tool. Rendering is limited to a safe subset, and raw HTML is escaped rather than executed so pasted markup can never run scripts. Works on mobile and offline.
• Uppercase ConverterUppercase Converter — free online tool. Title case capitalises the first letter of each word and lowercases the rest, which is what headlines and column names usually need. Works on mobile and offline.
• Lowercase ConverterLowercase Converter — free online tool. Title case capitalises the first letter of each word and lowercases the rest, which is what headlines and column names usually need. Works on mobile and offline.
• Title Case ConverterTitle Case Converter — free online tool. Title case capitalises the first letter of each word and lowercases the rest, which is what headlines and column names usually need. Works on mobile and offline.
• Toggle Case ConverterToggle Case Converter — free online tool. Fast, private, no signup. Works on mobile and offline.
• Capitalize WordsCapitalize Words — free online tool. Title case capitalises the first letter of each word and lowercases the rest, which is what headlines and column names usually need. Works on mobile and offline.