General Online Tools · 40+ Free Utilities
Formatting, conversion, encoding and unit-conversion utilities
DEVDeveloper(24)
TimestampUnix ⇄ Local timeDEVBase64UTF-8 supportedDEVJSON ToolsFormat · Validate · Generate ClassDEVURL EncodeencodeURIComponentDEVYAML ⇄ JSONBidirectional · YAML 1.2DEVJWT DecodeParse Header / Payload / signatureDEVTOML ⇄ YAMLBidirectional · JSON bridgeDEVJSON Schema ValidatorAjv engine · detailed error pathDEVCron Expression5-field crontab · see next run times at a glanceDEVVBA FormatterOne-click: fix indentation, keyword casing, and operator spacingDEVVBA → PythonConvert VBA Sub/If/For to Python functions in one clickDEVM Code FormatterOne-click: fix indentation, keywords, and chained call formattingDEVM Code GeneratorDescribe what you need in plain text — get a Power Query M script instantlyDEVM Code CheckerInstantly find mismatched parens, missing let-in, and other common errorsDEVDAX Formula GeneratorDescribe what you need in plain text — get a DAX measure instantlyDEVDAX FormatterOne-click: fix CALCULATE/FILTER/time-intelligence formula formattingDEVDAX Code CheckerPaste your DAX formula and instantly find mismatched parens, missing RETURN, typos, and moreDEVVBA → DAX ConverterConvert VBA macros to DAX DEFINE MEASURE in one clickDEVVBA → SQL ConverterConvert VBA code to SQL statementsDEVVBA → R ConverterConvert your Excel VBA macros to R functions in one click — ready for RStudioDEVUUID Generatorv1/v3/v4/v5/v6/v7 + NanoIDDEVRegex TesterMatch highlighting + replace previewDEVVBA → MVBA to Power Query M (functional)DEVM → DAXPower Query M to DAX (close the triangle)DEV
OFFICEOffice(16)
CSV ⇄ JSONRFC 4180 · auto delimiterOFFICEExcel ⇄ JSONxlsx/xls/csv · in-browser parseOFFICECSV ⇄ SQLGenerate CREATE TABLE + INSERTOFFICEExcel DedupeMulti-column · export xlsxOFFICEMerge CSVMulti-file UNION · header unionOFFICENumber → RMB CapitalFinance standard · yuan/jiao/fen · wan/yi/zhaoOFFICEExcel → PDFUpload xlsx → download PDF · auto-deleted after 5 minOFFICEWord → PDFUpload docx → download PDF · auto-deleted after 5 minOFFICEPowerPoint → PDFUpload pptx → download PDF · auto-deleted after 5 minOFFICEJSON to CSV/ExcelExport CSV / XLSX · UTF-8 BOMOFFICEExcel to MarkdownMulti-sheet · numeric right-alignOFFICESplit CSVBy rows/count/column · ZIP bundleOFFICEBarcode Generator (Code128 / EAN / UPC / PDF417)1D barcodes + stacked 2D + batch ZIP exportOFFICECSV to vCardContacts .vcf · cross-platformOFFICECSV to iCalendarCalendar .ics · Google/Outlook readyOFFICECSV to KMLMap markers · Google Earth/MapsOFFICE
TEXTText(10)
Char CounterChars · Bytes · WordsTEXTText CleanupCase · Trim spacesTEXTText DiffLine / word level · ignore case / whitespaceTEXTMarkdown ⇄ HTMLGFM syntax · live previewTEXTCase Convertercamel/Pascal/snake/kebab/dotTEXTRoman Numeral1-3999 · bidirectionalTEXTEncoding FixGBK⇄UTF-8 · 8 encodings auto-detectTEXTText OperationsDedupe/sort/繁简/word freqTEXTMorse CodeEncode/decode + audio + flash/micTEXTZero-Width / Invisible WatermarkHide secret text in zero-width charactersTEXT