KDTool - Simple, Practical & Free Online Tools
KDTool - Simple, Practical & Free Online Tools var modes = localStorage. getItem('Toolbox_Mode'); if(modes == 'Dark'){ document. documentElement. classList. add('night'); } var bloghost = "https: //www. kdtool. com/"; if(! window["\x6c\x6f\x63\x61\x74\x69\x6f\x6e"]["\x68\x72\x65\x66"]["\x69\x6e\x63\x6c\x75\x64\x65\x73"]("\x6b\x64\x74\x6f\x6f\x6c\x2e\x63\x6f\x6d")) {window["\x6c\x6f\x63\x61\x74\x69\x6f\x6e"]["\x68\x72\x65\x66"] = "\x68\x74\x74\x70\x73\x3a\x2f\x2f\x77\x77\x77\x2e\x6b\x64\x74\x6f\x6f\x6c\x2e\x63\x6f\x6d"; } HomeToolsCalculation Tools23Photo & Color4Text Tools1PDF Tools17Development Tools10 Calculation ToolsMoreParallelogram Perimeter CalculatorCalculate the perimeter of a parallelogram using two adjacent side lengthsParallelogram Area CalculatorCalculate the area of a parallelogram using side length and heightArea of a Trapezoid CalculatorOnline Tool for Calculating Trapezoid AreaSquare Number CalculatorCalculate the Square of a Number OnlineScreen PPI CalculatorCalculate PPI parameter online using screen width and heightOnline CalculatorA convenient and efficient online calculator, free to useSphere Surface Area CalculatorCalculate the surface area of a sphere online using its inner radiusSphere Volume CalculatorCalculate the volume of a sphere online using its radiusHemisphere Volume CalculatorCalculate the volume of a hemisphere online using the inner radius of a sphereHemisphere Curved Surface Area CalculatorOnline Calculation of Hemisphere Curved Surface AreaHemisphere Surface Area CalculatorCalculate the total surface area of a hemisphere online using the inner radius of a sphere24 Game SolverOnline 24-Point Game CalculatorAbsolute Value CalculationOnline Absolute Value Calculation ToolCuboid Volume CalculatorOnline Cuboid Volume CalculationVolume of a Cylinder CalculatorCalculate the volume of a cylinder using its inner radius and heightPhoto & ColorMoreImage RotationOnline batch image rotation, supports 90°, 180°, 270° rotationImage FlipOnline batch image flipping tool with vertical and horizontal flip optionsImage to Base64Convert images to Base64 encoding onlineBase64 to Image ConverterOnline tool to convert Base64 encoded images to image filesText ToolsMoreBatch Text File CreationOnline batch creation of text files with pack and downloadPDF ToolsMorePDF to Image ConverterConvert PDF files to images online and download as a packageExtract Images from PDFOnline batch extract images from PDF files and download as a packageImage to PDF FileConvert uploaded images to PDF files onlineExtract Single Page from PDFExtract specified single pages from a PDF file into individual PDF files onlinePDF Page Custom ReorderingCustomize the order of pages in a PDF file online. Free to use, no download required. Merge Multiple PDF FilesMerge multiple PDF files into a single PDF online with customizable orderPDF File SplittingSplit pages from PDF files online and create new PDF documentsPDF Page RemovalDelete unwanted pages from PDF files and generate new PDF documentsPDF Multi-Page to Single PageMerge all pages of a PDF file into one long single page online and generate a new PDF filePDF Metadata ExtractionExtract and display metadata information from PDF filesPDF Metadata SettingSet custom metadata for PDF files online, including modifying author, description, subject, and modification datePDF to Image ConversionConvert PDF pages to images online and generate a new PDF fileAdd Page Numbers to PDFAdd page numbers to PDF files online with customizable text position, size, and colorAdjust PDF Page SizeResize PDF pages online, set to A4 size or custom sizeRemove Images from PDFDelete images in PDF files online to reduce file sizeDevelopment ToolsMoreGzip Compress/DecompressOnline GZIP compression and decompression for text contentBase64/Hex ConversionOnline tool for mutual conversion between Base64 encoding and hexadecimalBase64 Encode/DecodeOnline free tool for encoding and decoding Base64 format contentOnline Extraction ToolOnline zip, rar, tar compressed file extractionOnline Pack and Compress FilesPack and compress multiple local files into a ZIP archiveJson to CookieOnline conversion of JSON format data to Cookie format dataOnline Cookie to JSON ConverterConvert cookie strings to JSON format onlinePHP Array to JSONOnline convert PHP array variables to JSON format dataPHP Online Serialization ToolOnline Serialization for PHP Arrays/JSON FilesJSON to PHP Array ConverterOnline JSON to PHP Array Conversion Tool Toolbox KDtool is a website dedicated to tool resource sharing, providing users with various practical tools and solutions. The website is committed to collecting, organizing, and sharing high-quality online tools to help users improve work efficiency and simplify daily tasks. Whether you need development tools, design assistance, office utilities, or other professional tools, KDtool can offer you convenient access and user experience. Tool Categories Calculation ToolsPhoto & ColorText ToolsPDF ToolsDevelopment Tools Company Site mapContactAbout UsPrivacy Policy LINKS：UDTool Copyright © 2025 KDtool. All Rights Reserved. We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept All", you consent to our use of cookies. You can customize your preferences in the settings. Reject All Preferences' Accept All
KDTool - Simple, Practical & Free Online Tools var modes = localStorage. getItem('Toolbox_Mode'); if(modes == 'Dark'){ document. documentElement. classList. add('night'); } var bloghost = "https: //www. kdtool. com/"; if(! window["\x6c\x6f\x63\x61\x74\x69\x6f\x6e"]["\x68\x72\x65\x66"]["\x69\x6e\x63\x6c\x75\x64\x65\x73"]("\x6b\x64\x74\x6f\x6f\x6c\x2e\x63\x6f\x6d")) {window["\x6c\x6f\x63\x61\x74\x69\x6f\x6e"]["\x68\x72\x65\x66"] = "\x68\x74\x74\x70\x73\x3a\x2f\x2f\x77\x77\x77\x2e\x6b\x64\x74\x6f\x6f\x6c\x2e\x63\x6f\x6d"; } HomeToolsCalculation Tools23Photo & Color4Text Tools1PDF Tools17Development Tools10 Calculation ToolsMoreParallelogram Perimeter CalculatorCalculate the perimeter of a parallelogram using two adjacent side lengthsParallelogram Area CalculatorCalculate the area of a parallelogram using side length and heightArea of a Trapezoid CalculatorOnline Tool for Calculating Trapezoid AreaSquare Number CalculatorCalculate the Square of a Number OnlineScreen PPI CalculatorCalculate PPI parameter online using screen width and heightOnline CalculatorA convenient and efficient online calculator, free to useSphere Surface Area CalculatorCalculate the surface area of a sphere online using its inner radiusSphere Volume CalculatorCalculate the volume of a sphere online using its radiusHemisphere Volume CalculatorCalculate the volume of a hemisphere online using the inner radius of a sphereHemisphere Curved Surface Area CalculatorOnline Calculation of Hemisphere Curved Surface AreaHemisphere Surface Area CalculatorCalculate the total surface area of a hemisphere online using the inner radius of a sphere24 Game SolverOnline 24-Point Game CalculatorAbsolute Value CalculationOnline Absolute Value Calculation ToolCuboid Volume CalculatorOnline Cuboid Volume CalculationVolume of a Cylinder CalculatorCalculate the volume of a cylinder using its inner radius and heightPhoto & ColorMoreImage RotationOnline batch image rotation, supports 90°, 180°, 270° rotationImage FlipOnline batch image flipping tool with vertical and horizontal flip optionsImage to Base64Convert images to Base64 encoding onlineBase64 to Image ConverterOnline tool to convert Base64 encoded images to image filesText ToolsMoreBatch Text File CreationOnline batch creation of text files with pack and downloadPDF ToolsMorePDF to Image ConverterConvert PDF files to images online and download as a packageExtract Images from PDFOnline batch extract images from PDF files and download as a packageImage to PDF FileConvert uploaded images to PDF files onlineExtract Single Page from PDFExtract specified single pages from a PDF file into individual PDF files onlinePDF Page Custom ReorderingCustomize the order of pages in a PDF file online. Free to use, no download required. Merge Multiple PDF FilesMerge multiple PDF files into a single PDF online with customizable orderPDF File SplittingSplit pages from PDF files online and create new PDF documentsPDF Page RemovalDelete unwanted pages from PDF files and generate new PDF documentsPDF Multi-Page to Single PageMerge all pages of a PDF file into one long single page online and generate a new PDF filePDF Metadata ExtractionExtract and display metadata information from PDF filesPDF Metadata SettingSet custom metadata for PDF files online, including modifying author, description, subject, and modification datePDF to Image ConversionConvert PDF pages to images online and generate a new PDF fileAdd Page Numbers to PDFAdd page numbers to PDF files online with customizable text position, size, and colorAdjust PDF Page SizeResize PDF pages online, set to A4 size or custom sizeRemove Images from PDFDelete images in PDF files online to reduce file sizeDevelopment ToolsMoreGzip Compress/DecompressOnline GZIP compression and decompression for text contentBase64/Hex ConversionOnline tool for mutual conversion between Base64 encoding and hexadecimalBase64 Encode/DecodeOnline free tool for encoding and decoding Base64 format contentOnline Extraction ToolOnline zip, rar, tar compressed file extractionOnline Pack and Compress FilesPack and compress multiple local files into a ZIP archiveJson to CookieOnline conversion of JSON format data to Cookie format dataOnline Cookie to JSON ConverterConvert cookie strings to JSON format onlinePHP Array to JSONOnline convert PHP array variables to JSON format dataPHP Online Serialization ToolOnline Serialization for PHP Arrays/JSON FilesJSON to PHP Array ConverterOnline JSON to PHP Array Conversion Tool Toolbox KDtool is a website dedicated to tool resource sharing, providing users with various practical tools and solutions. The website is committed to collecting, organizing, and sharing high-quality online tools to help users improve work efficiency and simplify daily tasks. Whether you need development tools, design assistance, office utilities, or other professional tools, KDtool can offer you convenient access and user experience. Tool Categories Calculation ToolsPhoto & ColorText ToolsPDF ToolsDevelopment Tools Company Site mapContactAbout UsPrivacy Policy LINKS：UDTool Copyright © 2025 KDtool. All Rights Reserved. We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept All", you consent to our use of cookies. You can customize your preferences in the settings. Reject All Preferences' Accept All