All 80+ Free Online Tools

Complete Tool Index

A plain-text index of every tool on ToolMaster, grouped by category, for quick reference.

Text Tools

• Uppercase Text ConverterConvert any text to UPPERCASE letters instantly, free and online.
• Lowercase Text ConverterConvert any text to lowercase letters instantly, free and online.
• Title Case ConverterCapitalize The First Letter Of Every Word in your text.
• Sentence Case ConverterFix casing so each sentence starts with a capital letter.
• Alternating Case ConverterTurn text into aLtErNaTiNg case for a fun, quirky style.
• Text ReverserReverse the letters in any block of text character by character.
• Word Order ReverserReverse the order of words in a sentence while keeping spelling intact.
• Duplicate Line RemoverDelete repeated lines from a list and keep only unique entries.
• Line Sorter (A-Z)Sort the lines of any list alphabetically from A to Z.
• Line Sorter (Z-A)Sort the lines of any list in reverse alphabetical order.
• Extra Whitespace RemoverStrip extra spaces and blank lines from messy text.
• Line Break RemoverJoin multiple lines into a single continuous paragraph.
• Remove All SpacesDelete every space character from a block of text.
• Slug GeneratorTurn a title into a clean, URL-friendly slug.
• Text to Binary ConverterConvert plain text into binary code (0s and 1s).
• Binary to Text ConverterDecode binary code back into readable text.
• Text to Morse Code ConverterTranslate plain text into Morse code dots and dashes.
• Morse Code to Text ConverterDecode Morse code back into readable plain text.
• HTML Tag RemoverStrip all HTML tags from a block of markup, leaving plain text.
• Capitalize Each LineCapitalize the first letter of every line in a list.
• Word CounterCount words, characters, sentences and paragraphs in real time.
• Character CounterCount characters with and without spaces, live as you type.
• Word Frequency CounterSee how many times each word appears in your text.
• Lorem Ipsum GeneratorGenerate placeholder Lorem Ipsum paragraphs for design mockups.
• Find and Replace ToolFind every occurrence of a word or phrase and replace it instantly.
• Markdown to HTML ConverterWrite Markdown and preview the rendered HTML live, side by side.
• Text Diff CheckerCompare two blocks of text and highlight every difference.

Converters & Dev Tools

• JSON Formatter & BeautifierBeautify and indent messy JSON so it is easy to read.
• JSON MinifierCompress JSON by removing all unnecessary whitespace.
• JSON to CSV ConverterConvert a JSON array of objects into a CSV spreadsheet file.
• CSV to JSON ConverterConvert CSV spreadsheet data into a clean JSON array.
• Base64 EncoderEncode plain text into Base64 format.
• Base64 DecoderDecode a Base64 string back into readable text.
• URL EncoderPercent-encode text so it is safe to use inside a URL.
• URL DecoderDecode a percent-encoded URL back into readable text.
• HTML Entity EncoderEscape special characters into safe HTML entities.
• HTML Entity DecoderConvert HTML entities back into their original characters.
• CSS MinifierCompress CSS code by removing whitespace and comments.
• JavaScript MinifierShrink JavaScript code size by stripping comments and whitespace.
• HTML FormatterAuto-indent and beautify raw, unformatted HTML markup.
• XML FormatterAuto-indent and beautify raw, unformatted XML markup.
• JWT DecoderDecode a JSON Web Token to inspect its header and payload.
• Number to Words ConverterSpell out any number in plain English words.
• camelCase to snake_caseConvert camelCase variable names into snake_case.
• snake_case to camelCaseConvert snake_case variable names into camelCase.
• Hash Generator (MD5/SHA)Generate MD5, SHA-1 and SHA-256 hashes from any text.
• UUID GeneratorGenerate random, RFC-4122 version 4 UUIDs instantly.
• Password GeneratorCreate strong, random passwords with custom length and rules.
• Random Number GeneratorGenerate a random whole number between two values.
• Regex TesterTest regular expressions against sample text and see matches.
• QR Code GeneratorCreate a scannable QR code from any text or URL.
• Color Converter (HEX/RGB/HSL)Convert colors between HEX, RGB and HSL formats.
• Unix Timestamp ConverterConvert between Unix timestamps and human-readable dates.
• Currency ConverterConvert between world currencies using live exchange rates.

Calculators

• BMI CalculatorCalculate your Body Mass Index from height and weight.
• Age CalculatorCalculate exact age in years, months and days from a birth date.
• Percentage CalculatorQuickly calculate what percentage one number is of another.
• Discount CalculatorWork out the final sale price after applying a discount.
• Loan EMI CalculatorCalculate your monthly loan EMI, interest, and total repayment.
• GST / Sales Tax CalculatorAdd or remove GST / sales tax from any amount.
• Length Unit ConverterConvert between meters, feet, miles, inches and more.
• Weight Unit ConverterConvert between kilograms, pounds, ounces and more.
• Temperature ConverterConvert between Celsius, Fahrenheit and Kelvin.

Image Tools

• Image CompressorReduce image file size while keeping good visual quality.
• Image ResizerResize any image to exact width and height in pixels.
• Image Cropper (Square)Crop an image to a perfectly centered square.
• Image to Base64 ConverterConvert an image file into a Base64 data URI string.
• JPG to PNG ConverterConvert JPG images to PNG format in your browser.
• PNG to JPG ConverterConvert PNG images to JPG format in your browser.
• Image RotatorRotate an image 90, 180 or 270 degrees.
• Image Watermark ToolAdd a custom text watermark to your images.
• Favicon GeneratorGenerate 16×16, 32×32 and 48×48 favicon images from any picture.
• Image Color PickerPick and copy hex color codes sampled from an uploaded image.

PDF Tools

• Merge PDFCombine multiple PDF files into a single document, in order.
• Split PDFSplit a PDF into separate single-page files, downloaded as a zip.
• Rotate PDFRotate every page in a PDF by 90, 180 or 270 degrees.
• Remove PDF PageDelete a specific page from a PDF document.
• Compress PDFOptimize a PDF file to reduce its size for easier sharing.
• Image to PDF ConverterCombine one or more images into a single PDF document.
• PDF to Image ConverterExport every page of a PDF as a PNG image, downloaded as a zip.