Text File Tools is a comprehensive, 100% client-side text processing suite with 20+ powerful utilities. It includes a Word/Line/Character Counter, Advanced Find & Replace, Text Cleaner & Normalizer, Line Sorter & Deduplicator, Case Converter, Text Comparison (Diff), Pattern Extractor, Text Masking & Redaction, Batch Processing, and an Educational Mode for learning. All processing happens locally in your browser—no data is ever uploaded to any server.

Our counter provides instant statistics including: Characters (with and without spaces), Words (total and unique), Lines (total and empty), Paragraphs, Sentences, and Reading Time. It also shows advanced metrics like Most Frequent Words, Character Distribution, Line Length Analysis, and Average Word Length—perfect for writers, students, and SEO professionals.

Our Find & Replace supports: Regex patterns for complex matching, Case-sensitive/insensitive search, Whole word matching, Multiline mode, Preview before replacing, Replace one or all occurrences, and Match highlighting. You can see exactly which lines contain matches, jump between results, and verify changes before applying them.

The Text Cleaner offers 18+ cleaning options in 4 categories: Whitespace (trim trailing/leading, remove multiple spaces, tabs to spaces), Lines (remove empty/blank/duplicate lines, merge consecutive blanks), Characters (remove non-printable, control chars, normalize Unicode, convert smart quotes), and Special (strip HTML tags, normalize line endings, remove punctuation/numbers). Perfect for cleaning logs, datasets, or preparing text for programming.

Sort lines by: Alphabetical (A-Z or Z-A), Numeric value, Line length, Natural sort (handles numbers correctly, e.g., item1 < item10), or Random shuffle. Options include case-insensitive sorting and ignoring leading whitespace. For duplicates, you can: Remove exact duplicates, Remove case-insensitive duplicates, Keep only unique lines, or Show duplicates only.

Convert text to: UPPERCASE, lowercase, Title Case (first letter of each word capitalized), Sentence case (first letter after periods capitalized), tOGGLE cASE (invert all cases), and Capitalize Words. The tool also supports encoding transformations like URL encode/decode, HTML encode/decode, and Base64 encode/decode.

Paste or load two text versions, and our diff engine will show: Added lines (green), Removed lines (red), and Modified lines (yellow). Options include ignoring case, whitespace, and blank lines. The summary shows total additions, removals, and modifications. Perfect for comparing document versions, code changes, or assignment revisions.

Quick-extract common patterns: Email addresses, URLs, Phone numbers, IP addresses, Numbers, Dates, #Hashtags, and @Mentions. For custom needs, enter your own regex pattern. Preset examples include capitalized words, 4+ digit numbers, bracketed text, and quoted strings. All extracted items can be copied or downloaded instantly.

Select data types to mask: Emails (j***@example.com), Phone numbers (***-***-1234), Credit cards (****-****-****-1234), IP addresses (192.***.***. 1), and SSN/National IDs (***-**-1234). The tool uses regex to detect and replace sensitive patterns with asterisks while preserving partial information for context. Essential for sharing logs or documents without exposing private data.

Batch Mode lets you apply the same transformation to multiple files at once. Upload several .txt, .csv, or .log files, select an operation (uppercase, lowercase, clean, sort, remove duplicates, add line numbers), and process them all simultaneously. Each processed file downloads automatically—ideal for bulk data preparation or cleaning multiple documents.

You can upload: .txt, .csv, .log, .md (Markdown), .json, .xml, .html, .css, and .js files. The tool uses streaming/buffered reading for large files to prevent memory issues. Export options include TXT, CSV, and JSON formats with encoding preserved.

100% Private. All text processing—counting, searching, cleaning, transforming, comparing—happens locally in your browser using JavaScript. Your files and text content are never uploaded to any server. This makes the tool completely safe for processing confidential documents, source code, research data, or any sensitive text files.