Web Tools Collection
A collection of useful online tools for developers and everyday tasks
Audio & Video
3Text
10Unicode EncodingUnicode encoder and decoder onlineUTF-8 ConverterUTF-8 encoder and decoder onlineText DifferenceCompare text and files line by lineAI Text DetectorScreen text for AI-generated writing signalsClaude Watermark RemoverClean invisible text markers locallyVigenere Cipher ConverterEncrypt and decrypt Vigenere cipher text onlineEncoding ConverterConvert text and CSV encoding, including Shift_JIS, GBK, Big5, EUC-KR, and UTF-8BASE64Decode and encode Base64 onlineMD5 GeneratorGenerate MD5 hashes onlineURL Encoding/DecodingEncode and decode text for use in URLs
Data
7JSON/JSON5 FormatterFormat, validate, beautify, and minify JSON, JSON5, and JSONC with commentsURL Parameters ParserExtract and analyze parameters from URLsJSON ↔ TOON ConverterConvert JSON to TOON format to save LLM tokensBBCode ViewerPreview BBCode and convert it to safe HTML locally in your browser.Hex to Binary ConverterConvert hexadecimal to binary, including fractions and long values, locally.XML ViewerParse, view, format, minify, and convert XML to JSON locally.XML ValidatorValidate, format, and minify XML online. Free XML syntax checker with instant error detection.
Web
9Password GeneratorGenerate strong random passwords instantlyToken GeneratorGenerate secure random tokens and API secretsUnix TimestampConvert between Unix timestamps and human-readable datesPercentage ChangeCalculate percentage increase or decreaseStock Limit Price CalculatorCalculate stock limit-up and limit-down pricesStock Recovery CalculatorCalculate stock loss recovery and limit-up movesArcsin CalculatorCalculate arcsin angles in degrees and radiansUUID ValidatorValidate and check UUID format, version, and structure. Free online UUID validator tool.Random Number GeneratorGenerate random numbers with configurable precision, range, and quantity. Uses cryptographically secure randomness.
Color
3Color PickerPick colors from images and screenPantone to RGB ConverterConvert Pantone colors to RGB, HEX, and HSL. Includes color preview, reference table, and HEX to Pantone matching.Pantone RGB Reference ChartLook up approximate HEX, RGB, and CMYK values for Pantone colors. Search color codes and filter coated or uncoated versions.
QR Code
3Image
6AI Image DetectorFree AI image detector onlineAI Background RemoverFree AI background remover onlineLow Quality Image MakerMake images low quality onlineImage to Line DrawingTurn photos into line drawingsColoring Page MakerMake coloring pages from photosMatcha Filter RemoveMatcha Filter Remove: reduce green tint from photos