WritingLocal only

Text Converter (All-in-One)

Convert case + clean text + remove characters. Runs locally.

convert casetext cleanupremove characterssort linesdedupe lines

⌘⇧CCopy output

Your data stays in your browser — nothing is uploaded.

Input

Size: 106 B

Case conversion

Clean up

Normalize line endings (CRLF → LF)Trim each lineRemove extra spacesRemove blank lines

Remove characters

Remove these characters (literal set)Remove digits (0–9)Remove letters (A–Z)Remove whitespace

Line operations

Remove duplicate linesCase-insensitive duplicates

Sort lines

Add line numbers

Output

Hello world! This is a sample.

Line 2 has extra spaces.
Line 3 has duplicates.
Line 3 has duplicates.

Plain text output only.

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What is Text Converter (All-in-One)?

Text Converter (All-in-One) transforms text between multiple case formats: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and more. Includes additional cleanup tools for removing extra spaces and line breaks.

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How it Helps

✓Convert between 10+ text case formats instantly.
✓Clean up text by removing extra spaces, blank lines, and duplicates.
✓Transform code identifiers between camelCase, snake_case, and kebab-case.

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Usage Guide

1Paste your text into the input area.
2Click the desired case format button (Uppercase, Title Case, camelCase, etc.).
3Copy the converted text from the output area.

Frequently Asked Questions

UPPERCASE, lowercase, Title Case, Sentence Case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and alternating case.

Yes. Title Case follows standard capitalization rules, keeping small words like 'the', 'and', 'of' lowercase unless they start the title.

Paste all your text at once — the converter handles multi-line input and preserves line breaks.