Toolest

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Explore every Toolest utility from one searchable category index.

PNG JPGConvert PNG images to JPG and continue immediately into preview or compression workflows.ConvertJPG PNGConvert JPG and JPEG images into PNG files for workflows that require PNG output.ConvertPNG SVGConvert PNG images into SVG assets for design, documentation and publishing workflows.ConvertSVG PNGExport SVG files to PNG images for sharing, previews and raster workflows.ConvertOptimize SVGOptimize SVG markup for lighter, cleaner files ready for web delivery.OptimizePDF JPGConvert PDF pages into JPG images for sharing, previews and publishing pipelines.ConvertJPG PDFConvert JPG images into lightweight single-page PDF files.ConvertCompress PDFReduce PDF file size for email, upload limits and long-term storage.CompressShorten URLCreate short links with a server-side redirect.WebFormat JSONFormat and validate JSON for debugging, APIs and config files.DeveloperBase64 EncodeEncode text into Base64 for headers, config and developer workflows.DeveloperBase64 DecodeDecode Base64 text back into readable content.DeveloperURL EncodeEncode text for safe use inside URLs and query strings.WebURL DecodeDecode URL-encoded text into readable values.WebGenerate SlugTurn titles and names into clean SEO-friendly slugs.TextPasswordGenerate strong random passwords locally in the browser.SecurityUUIDGenerate UUID v4 identifiers locally in the browser.DeveloperFormat XMLFormat and validate XML for feeds, configs and integrations.DeveloperXML to JSONConvert XML into readable JSON for APIs and data workflows.DeveloperJSON to XMLConvert JSON into XML for integrations, feeds and legacy systems.DeveloperCSV to JSONConvert CSV rows into JSON arrays for APIs and scripts.DeveloperJSON to CSVConvert JSON arrays into CSV for spreadsheets and exports.DeveloperWord CounterCount words, characters, sentences and paragraphs, plus estimated reading time.TextCase ConverterConvert text into UPPERCASE, lowercase, Title Case, Sentence case, camelCase and snake_case at once.TextLorem IpsumGenerate placeholder Lorem Ipsum paragraphs for mockups, layouts and drafts.TextHex / RGBConvert colors between hex and RGB notation in either direction.DeveloperJWT DecoderDecode a JWT header and payload and check its expiry, entirely in your browser.DeveloperRegex TesterTest a regular expression against a string and see every match highlighted with its position.DeveloperMarkdown to HTMLConvert Markdown into clean HTML markup for READMEs, docs and CMS content.TextPercentage CalculatorCalculate a percentage of a number, apply an increase or decrease, and more, instantly.CalculatorsDate DifferenceFind the exact number of days, weeks, months and years between two dates.CalculatorsBMI CalculatorCalculate your Body Mass Index from height and weight and see which range it falls in.CalculatorsKm ⇄ MilesConvert kilometers to miles or miles to kilometers instantly, in either direction.CalculatorsKg ⇄ LbsConvert kilograms to pounds or pounds to kilograms instantly, in either direction.CalculatorsCelsius ⇄ FahrenheitConvert Celsius to Fahrenheit or Fahrenheit to Celsius instantly, in either direction.CalculatorsCm ⇄ InchesConvert centimeters to inches or inches to centimeters instantly, in either direction.CalculatorsLiters ⇄ GallonsConvert liters to US gallons or US gallons to liters instantly, in either direction.CalculatorsText Diff CheckerCompare two blocks of text and instantly see the exact words that were added, removed or left unchanged.TextTip CalculatorCalculate a tip and split the bill between any number of people instantly.CalculatorsLoan CalculatorCalculate the monthly payment, total cost and total interest of a loan instantly.CalculatorsRandom NumberGenerate a random whole number between two values, using a cryptographically strong source.CalculatorsRemove DuplicatesRemove duplicate lines from a list of text, keeping the first occurrence of each.TextSort LinesSort a list of text alphabetically, both ascending and descending, in one pass.TextFind and ReplaceFind every occurrence of a word or phrase in a text and replace it with another, instantly.TextWhitespace CleanerRemove extra spaces, tabs and blank lines from a block of text instantly.TextCard ValidatorCheck whether a card number is structurally valid and identify its network, entirely offline.SecurityIBAN ValidatorCheck whether an IBAN is structurally valid using the standard checksum, entirely offline.SecurityRoman NumeralsConvert a number to Roman numerals or a Roman numeral back to a number, in either direction.CalculatorsMerge PDFCombine multiple PDF files into a single document, in the order you upload them.PDFSplit PDFExtract a page range from a PDF into a new, standalone file.PDFHash GeneratorGenerate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text, entirely in your browser.DeveloperHTML EntitiesEncode text into HTML entities or decode HTML entities back into plain text, instantly.DeveloperPassword StrengthCheck how strong a password is and get specific suggestions to improve it, entirely offline.SecurityTimestampConvert a Unix timestamp to a readable date, or a date to a Unix timestamp, entirely in your browser.DeveloperDecimal ⇄ BinaryConvert decimal to binary or binary to decimal instantly, in either direction.DeveloperDecimal ⇄ OctalConvert decimal to octal or octal to decimal instantly, in either direction.DeveloperDecimal ⇄ HexConvert decimal to hexadecimal or hexadecimal to decimal instantly, in either direction.DeveloperBinary ⇄ HexConvert binary to hexadecimal or hexadecimal to binary instantly, in either direction.DeveloperContrast CheckerCheck the WCAG contrast ratio between a text color and a background color, entirely in your browser.DeveloperMorse CodeTranslate text to Morse code, or Morse code back to text, entirely in your browser.TextJSON DiffCompare two JSON documents and instantly see which keys were added, removed or changed.DeveloperCron ExplainerTurn a 5-field cron expression into a plain-English schedule, with the next upcoming run times.DeveloperNumber to WordsConvert a number into its written-out English words, entirely in your browser.CalculatorsMeta TagsGenerate SEO, Open Graph and Twitter Card meta tags for a page, ready to paste into your <head>.WebHTML FormatterBeautify or minify an HTML snippet, both at once, entirely in your browser.DeveloperCSS FormatterBeautify or minify a CSS stylesheet, both at once, entirely in your browser.DeveloperText EncryptorEncrypt text with a passphrase using AES-GCM, or decrypt it back, entirely in your browser.Security