Quick tools · 60 live
Small jobs, done in seconds.
Converters, formatters, cleaners, counters and generators that each do one thing well. Free, no sign-up, and they run in your browser — nothing you paste or open is uploaded.
Developer 19
JSON Formatter & ValidatorValidate, format, and minify JSON safely in your browser.JSONXML FormatterPrettify or minify XML documents locally.XMLYAML ↔ JSON ConverterConvert YAML to JSON and JSON to YAML in either direction.YAML · JSONBase64 Encoder & DecoderEncode text to Base64 or decode it back, locally.TEXTJWT DecoderDecode a JSON Web Token to inspect its header and payload.JWTURL Encoder & DecoderPercent-encode or decode URLs and query strings.TEXTHTML FormatterBeautify or minify HTML markup in your browser.HTMLCSS Minifier & BeautifierMinify or beautify CSS locally for smaller, cleaner files.CSSJavaScript MinifierStrip comments and whitespace from JavaScript.JSSQL FormatterPrettify SQL queries with clean keywords and indentation.SQLColor Converter — HEX, RGB, HSLConvert and copy colors between HEX, RGB, and HSL with a picker.COLORRegex TesterTest regular expressions with live matches and capture groups.TEXTcURL Command BuilderBuild a cURL command from a form: method, headers, and body.TEXTHTTP Status Code LookupSearch HTTP status codes and their meanings — a dev reference.REFERENCEJSON ↔ CSV ConverterConvert a JSON array to CSV and CSV back to JSON.JSON · CSVCron Expression ParserExplain any 5-field cron expression in plain English.TEXTrobots.txt & .htaccess GeneratorBuild a robots.txt file or common .htaccess rules from a form.TEXTUnix Timestamp ConverterConvert Unix epoch timestamps to human dates and back.TEXTHash Generator (SHA)Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes locally.TEXT
Text 8
Word & Character CounterCount words, characters, sentences, paragraphs, and reading time.TEXTText Diff CheckerCompare two texts and highlight added and removed lines.TEXTMarkdown PreviewWrite Markdown and preview the rendered HTML live.MDLorem Ipsum GeneratorGenerate placeholder paragraphs, sentences, or words.TEXTSlug GeneratorTurn titles into clean, URL-safe slugs, in any language.TXTLine Sorter & Duplicate RemoverSort lines, remove duplicates and blank lines, reverse or shuffle.TXTEmail, URL & Number ExtractorPull every email, link, number, phone or hashtag out of text.TXTText Case ConverterSwitch text between UPPER, lower, Title, camelCase, snake_case and more.TEXT
Analyze 6
Outlier finderFind unusually high or low values in every number column of a CSV or Excel file, by the IQR rule or z-scores.CSV · XLS · XLSXCorrelation matrixPearson or Spearman correlations between all number columns, as a colour-coded matrix with the strongest pairs explained.CSV · XLS · XLSXFrequency tableCounts, percentages and cumulative percentages for any column; numbers are grouped into ranges.CSV · XLS · XLSXColumn analyzerProfile completeness, uniqueness, and data types.CSV · XLS · XLSXExcel formula inspectorList formulas, references, and possible errors.XLSXSpreadsheet comparisonCompare two tables and highlight changed cells.CSV · XLSX
Image 6
Image to Base64Turn an image into a Base64 data URL for HTML or CSS.PNG · JPG · WEBP · SVGFavicon Generatorfavicon.ico and every icon size from one image, with the HTML.PNG · JPG · SVG → ICO · PNGColour Palette from ImageThe main colours of a picture as HEX codes and CSS variables.PNG · JPG · WEBPImage compressorReduce image size with a visual quality control.JPG · PNG · WEBPImage converterConvert between modern browser image formats.JPG · PNG · WEBPImage resizerResize images by pixels or percentage.JPG · PNG · WEBP
Convert 5
CSV to JSONConvert spreadsheet rows into structured JSON.CSV → JSONJSON to CSVTurn JSON records into a downloadable table.JSON → CSVExcel to CSVExport a worksheet as a portable CSV file.XLS · XLSX → CSVDelimiter converterSwitch between comma, tab, pipe, and semicolon data.CSV · TSV · TXTBinary ↔ Text ConverterConvert text to binary and binary back to text.TXT
Generate 5
Unit ConverterConvert length, weight, temperature, data, and time units.NUMBERRandom Number GeneratorFair random numbers in any range, with or without repeats.—QR Code GeneratorCreate downloadable QR codes for text and URLs locally.PNGPassword GeneratorCreate strong, random passwords with custom rules.TEXTUUID GeneratorGenerate one or many random UUID v4 identifiers.TEXT