Text & String Tools
10 tools to format, validate, and process data in your browser.
Camel Case Converter - Text Case Converter Tool
Stop manually reformatting variable names! Convert text between 13 case formats instantly including camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, and more. Perfect for converting between programming conventions, API formats, and naming standards. Free, works offline, unlimited conversions.
Diff Checker
Professional diff workstation for text and code. Compare any two versions side-by-side or inline with granular highlights, ignore rules, merge controls, statistics, and exportable reports.
Advanced Text Analytics
Comprehensive text analysis providing sentiment analysis, readability scores, keyword extraction, entity recognition, language detection, tone analysis, and detailed content statistics.
Regular Expression Tester
Stop debugging regex in console! Test regular expressions instantly with real-time pattern matching, capture group analysis, replace/split modes, and detailed pattern explanations. Supports all JavaScript regex features including flags, lookaheads, and named groups. Perfect for validation, parsing, and text manipulation. Free, works offline, unlimited testing.
Regex Pattern Analyzer
Comprehensive regex pattern analyzer with explanation, testing, match extraction, and performance analysis capabilities.
ASCII Art Generator
Generate beautiful ASCII art from text with multiple fonts, styles, and customization options including alignment, spacing, and effects
Line Deduplicator - Remove Duplicate Lines from Text Online
Free online line deduplicator that removes duplicate lines from text data while preserving formatting and order. Perfect for cleaning up lists, logs, data files, and text documents with advanced sorting and filtering options.
Text Find & Replace - Search and Replace Text Online
Stop manually finding and replacing text in documents! Search and replace text patterns with advanced options including regular expressions, case sensitivity, and whole word matching. Perfect for code refactoring, document editing, and data cleanup. Free, works offline, unlimited replacements.
List Sorter - Sort Lists Online Alphabetically or Numerically
Free online list sorting tool that organizes text lists alphabetically, numerically, by length, or randomly. Features advanced options like duplicate removal, article ignoring, and natural sorting for efficient list management.
Markdown Editor with Live Preview
Split-view Markdown editor with GFM support, live preview, TOC generation, and export to HTML or PDF-ready output.
Camel Case Converter - Text Case Converter Tool
Stop manually reformatting variable names! Convert text between 13 case formats instantly including camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, and more. Perfect for converting between programming conventions, API formats, and naming standards. Free, works offline, unlimited conversions.
Diff Checker
Professional diff workstation for text and code. Compare any two versions side-by-side or inline with granular highlights, ignore rules, merge controls, statistics, and exportable reports.
Advanced Text Analytics
Comprehensive text analysis providing sentiment analysis, readability scores, keyword extraction, entity recognition, language detection, tone analysis, and detailed content statistics.
Regular Expression Tester
Stop debugging regex in console! Test regular expressions instantly with real-time pattern matching, capture group analysis, replace/split modes, and detailed pattern explanations. Supports all JavaScript regex features including flags, lookaheads, and named groups. Perfect for validation, parsing, and text manipulation. Free, works offline, unlimited testing.
Regex Pattern Analyzer
Comprehensive regex pattern analyzer with explanation, testing, match extraction, and performance analysis capabilities.
ASCII Art Generator
Generate beautiful ASCII art from text with multiple fonts, styles, and customization options including alignment, spacing, and effects
Line Deduplicator - Remove Duplicate Lines from Text Online
Free online line deduplicator that removes duplicate lines from text data while preserving formatting and order. Perfect for cleaning up lists, logs, data files, and text documents with advanced sorting and filtering options.
Text Find & Replace - Search and Replace Text Online
Stop manually finding and replacing text in documents! Search and replace text patterns with advanced options including regular expressions, case sensitivity, and whole word matching. Perfect for code refactoring, document editing, and data cleanup. Free, works offline, unlimited replacements.
List Sorter - Sort Lists Online Alphabetically or Numerically
Free online list sorting tool that organizes text lists alphabetically, numerically, by length, or randomly. Features advanced options like duplicate removal, article ignoring, and natural sorting for efficient list management.
Markdown Editor with Live Preview
Split-view Markdown editor with GFM support, live preview, TOC generation, and export to HTML or PDF-ready output.
Related categories
› About text & string tools
Manipulate and transform text and strings Every tool runs client-side, so you can work with internal or sensitive content without upload workflows.
Common workflows include validation, quick conversion, and cleanup for API payloads, docs, spreadsheets, and operational data.