Browse all available tools
A categorized directory of working utilities. Use search and filters to narrow down what you need. Each tool page includes a description and usage guidance, and we review copy so it matches actual behavior.
Remove duplicate lines from a list. Paste your list, get unique items.
Compare two texts and highlight differences. Side-by-side or unified view.
Find specified strings within text. Add multiple search strings and discover all occurrences.
Search and replace text. Find occurrences, then replace with new text.
Convert text to Leet speak and vice versa. a→4, e→3, i→1, o→0.
Replace {{variable}} placeholders in a template with values from a JSON object.
Convert between CRLF, LF, and CR line endings.
Count words, characters, lines, and paragraphs. Real-time statistics as you type.
Count word occurrences. See which words appear most often in your text.
Add line numbers to each line. Choose format (1, 01, 001) and separator.
Count characters and UTF-8 byte size. For API limits, DB columns, Twitter length.
Truncate text to a maximum character count with optional ellipsis.
Convert text between camelCase, snake_case, kebab-case, and more.
Generate placeholder text by character count. Supports English and Japanese.
Sort lines alphabetically or randomly. A-Z, Z-A, reverse, shuffle. Optional deduplication.
Reverse text order. hello world becomes dlrow olleh.
Check if a string is a palindrome. Ignores spaces and punctuation.
Generate anagrams from a string. Random character shuffles.
Find duplicated lines in a pasted list. Show duplicated values separately.
Clean pasted text by removing extra spaces, line breaks, and tabs.
Generate URL slugs from text. Hello World becomes hello-world.
Convert comma-separated or paragraph text into list format.
Convert list format into single text line.
Convert text to sentence case.
Randomize the order of words or lines.
Remove specific characters from text (spaces, numbers, symbols).
Sum numbers from a spreadsheet column. Paste numbers, get the total.
Convert CSV to Markdown table format.
Convert CSV data into Excel (.xlsx) format.
Convert Excel files (.xlsx) into CSV format.
Split a large CSV file into multiple smaller CSV files by row count.
Merge multiple CSV files into one. Combine CSV data.
Remove empty lines from Excel, CSV, or text.
Convert CSV data to JSON format. Paste CSV, get structured JSON.
Compare two JSON objects and highlight differences.
Format and validate JSON. Paste minified JSON, get pretty-printed output.
Minify JSON to a single line. Remove whitespace and newlines.
Minify HTML. Remove comments, collapse whitespace.
Minify CSS. Remove comments and whitespace.
Encode and decode Base64 strings. Supports Unicode.
Encode and decode URL-encoded strings. Percent-encoding.
Generate random UUID v4 identifiers. One click, instant result.
Convert JSON array to CSV format. Paste JSON, get comma-separated output.
Convert between Unix timestamp and human-readable date.
Generate secure random passwords. Customize length and character types.
Decode JWT tokens. View header and payload as JSON.
Create JWT tokens from header and payload. HMAC-SHA256 signing.
Parse .env format. Validate and convert to JSON.
Convert request to cURL command.
Compare two texts by their hash values.
Generate MD5, SHA-256, SHA-512 hashes. Paste text, get hash.
Convert between binary, octal, decimal, and hexadecimal.
Convert between text and Morse code.
Encode/decode text with ROT13. Same operation reverses it.
Convert between HEX, RGB, and HSL color formats. Color picker included.
Check WCAG contrast ratio between foreground and background colors. AA/AAA compliance.
Generate QR codes from text or URLs. Choose size, download as PNG.
Generate barcodes (Code128, EAN13, UPC). Download as PNG.
Generate QR codes with custom colors. Change foreground and background colors.
Test regular expressions against sample text. Highlight matches with g, i, m flags.
Preview Markdown as rendered HTML. Headings, lists, code blocks.
Convert YAML to JSON and JSON to YAML. Bidirectional conversion with error handling.
Convert HTML to Markdown. Headings, lists, links, tables supported.
Convert px to rem and rem to px. Base font size 10, 14, 16, 18px. Batch conversion.
Generate cron expressions visually.
Format messy SQL into readable format.
Format HTML code with proper indentation.
Parse URLs into components: protocol, hostname, path, query parameters.
Search HTTP status codes. 404 → Not Found.
Validate JSON and show errors.
Validate JSON against a JSON Schema.
Escape and unescape HTML characters.
Validate if a string is a valid UUID.
Generate color palettes from a base color.
Generate multiple strong random passwords.
Generate multiple QR codes from a list of inputs.
Generate multiple UUID v4 values.
Format and beautify XML with indentation.
Convert XML data into JSON.
Convert JSON data into XML format.
Convert Markdown text into HTML.
Extract readable text from HTML.
Convert JSON data to YAML format.
Format and validate YAML. Pretty-print and fix indentation.
Decode HTML entities including numeric and named entities.
Calculate network address, broadcast, and host range from IP and CIDR.
Format CSS with proper indentation.
Generate linear/radial gradient CSS. Set colors and positions, copy code.
Generate box-shadow CSS. Adjust offset, blur, spread, color.
Format GraphQL queries, mutations, and SDL.
Crop images to a fixed aspect ratio (16:9, 4:3, 1:1, etc.) with center crop.
Add text watermark to images. Position, opacity, font size, and color options.
Upload image and compress it. Output smaller file.
Resize image width and height.
Compare two images side by side. For design and quality checks.
Convert images to pixel art style. For games and design.
Calculate aspect ratio from width and height. Presets for 16:9, 4:3, 1:1, etc.
Convert image to base64 string.
Convert images between PNG, JPG, and WebP formats.
Resize images for Instagram, Twitter, Facebook, LinkedIn, YouTube, Pinterest.
Remove background from images. Output PNG with transparency.
Upload image and crop selected area.
Rotate image by 90°, 180°, or 270°.
Extract colors from uploaded images.
Convert PNG images to JPG format.
Convert JPG images to PNG format.
Convert WebP images to PNG or JPG.
Display metadata from images: file size, resolution, EXIF data.
Generate favicons in multiple sizes from an image.
Decode QR codes from uploaded images.
Add text watermark to all pages of a PDF. Position, opacity, font size options.
Split a PDF into multiple pages.
Merge multiple PDF files into one.
Compress PDF files. Lossless, balanced, or max presets. 100% browser-side.
Convert PDF pages to images.
Convert uploaded images into a PDF.
Count total pages in a PDF.
Extract specific pages from a PDF.
Reorder PDF pages. Drag and drop to change page order.
Remove selected pages from a PDF file.
Rotate pages in a PDF.
Display metadata from a PDF.
Extract text content from a PDF file.
Search for text within a PDF. Find pages and context.
Convert between currencies using reference rates.
Convert length, weight, and temperature. m↔ft, kg↔lb, °C↔°F.
Evaluate math expressions. Type 100*1.1 or (10+20)/3 and get the result.
Add, subtract, multiply, and divide fractions.
Convert between Arabic numbers and Roman numerals (I, V, X, L, C, D, M).
Calculate percentages. What is X% of Y? What percent is A of B?
Calculate age from birth date. Years, months, days, and total days.
Find when you'll have lived for a repdigit number of days (e.g., 7777, 11111).
Generate random numbers between min and max. Cryptographically secure.
Calculate BMI from height and weight. Japanese standard categories.
Calculate days between two dates. Simple date difference calculator.
Add or subtract days from a date. Calculate future or past dates.
Calculate discount price and savings.
Calculate percentage change between two values.
Calculate balance from initial amount and deposits/withdrawals.
Calculate tax-inclusive and tax-exclusive amounts.
Calculate tips based on bill amount and percentage.
Split a bill evenly among people. Optionally include tip.
Calculate monthly loan payments.
Calculate compound interest over time.
Calculate future value with inflation rate.
Calculate gross profit and margin from revenue and cost.
Calculate date N business days from start. Excludes weekends.
Estimate take-home pay. Health, pension, employment insurance, tax.
Calculate gross profit, margin, break-even point from revenue and costs.
Calculate hourly and daily rate from monthly salary and work hours.
Generate SEO meta tags for title, description, and keywords.
Preview how a link will appear when shared on social media.
Generate a robots.txt file based on user options.
Generate a basic sitemap.xml structure from user URLs.
Generate marketing URLs with UTM parameters.
Generate Schema.org structured data for SEO.
Validate JSON-LD structure. Check @context and @type.
Convert time between different time zones.
Pick a random value from a list.
Draw or type signatures. Download as PNG.
Generate random strings based on length and character type.
Create countdown timers to specific dates.
Check password strength and provide feedback.
Validate if an email address format is correct.
Generate random addresses for testing and demo purposes.
Generate random names for testing and demo data.
Measure elapsed time with start, stop, and lap.
25-minute work and 5-minute break cycles for productivity.