All toolsTotal 54 itemsDevice Performance CheckCheck 4K / 8K video, Bluetooth, Wi-Fi and browser performanceIP Reputation CheckCheck IP risk scores, proxy signals and network ownershipJSON Formatter WorkbenchFormat, validate, query, compare, and convert JSON dataGenerate QR CodeGenerate, detect and export brand QR codeParse QR CodeUpload QR code image to parse contentColor pickerChoose color and convert HEX, RGB, HSLBase64 ConvertText/Image/File Base64 encode and decodeTimestamp conversionConvert between timestamp and datetimeRegex testTest and debug regular expressionsUnit ConverterConvert length, weight, area and other unitsCurrency ExchangeConvert currencies using reference ratesCompress ImageCompress JPG, PNG, WebP imagesResize ImageResize image and crop common aspect ratiosCode FormatterBeautify JS, TS, CSS, HTML, JSON codeURL EncodeURL Encode/Decode ConverterJWT ParserParse JWT Header and PayloadText CompareCompare Two Texts Line by LinePassword generatorGenerate secure random passwordBase ConversionBinary, Octal, Decimal, Hex conversionDate calculatorCalculate date difference and date addition/subtractionHash CalculationCalculate SHA-1, SHA-256, SHA-512 hash for text/fileText ProcessingWord count, deduplicate, remove blank lines, change case, sortLorem GeneratorGenerate placeholder text paragraphsConvert Image FormatConvert between JPG, PNG, and WebP formatsImage WatermarkAdd text watermark to imageImage to PDFJPG/PNG Image to PDFOCR Text RecognitionExtract text content from imagesTranslation ToolChinese-English Text TranslationMarkdown PreviewPreview Markdown and copy HTMLMermaid to PNG/SVGConvert Mermaid diagrams to SVG/PNG imagesUUID GeneratorBatch generate UUID v4 identifiersCron ParserParse Cron expressions and preview execution timesURL ParserParse URL structure and query parametersCSV to JSONCSV Table and JSON Array ConvertWord CountCount words, characters, lines, and reading timeCase ConversionConvert case, title, camel, snake, and kebabRandom StringBatch generate random strings, tokens, and codesPercentage calculatorCalculate percentages, proportions, and growth ratesBMI CalculatorCalculate BMI index from height and weightLoan CalculatorEstimate monthly payment, total interest, and total repaymentColor contrastCheck WCAG contrast ratio between foreground and background colorsCSS Gradient GeneratorGenerate linear gradient CSS with live previewUTM BuilderGenerate tracking link with source, medium and campaign parametersHTML Entity ConverterHTML Special Character Entity Encoding and DecodingPDF MergeMerge multiple PDF files and adjust orderYAML ConverterYAML/JSON Data ConverterOnline CalculatorArithmetic, parentheses, decimals, and common functionsBarcode GenerationGenerate Code128 barcode and download imageReceipt generatorEdit product and checkout details to generate thermal receipt imageWeather QueryQuery city real-time weather and 3-day forecastTodo ListManage tasks, priorities, deadlines, and schedule into calendarSchedule planningUse time blocks to schedule daily tasks and plansPomodoro TimerFocus Timer, Short Break, Long Break, and Task ListBatch Rename ListPreview batch filenames and export CSV list