Web Convert Toolbox - Online Developer Tools

A collection of free online tools for developers. Format, convert, and validate JSON, XML, YAML, and other data formats. Process text, encode/decode strings, and more — everything you need to streamline your daily development workflow.

🕒 Recently Used

CSV Label PrinterDisplay and print each row from CSV file as labels. QR code label toggle supportedQR Code GeneratorGenerate QR codes from URLs or text. PNG/SVG download and label printing supportedBarcode GeneratorGenerate barcodes in CODE128/EAN-13/EAN-8/CODE39/ITF-14 formats. SVG download and label printing supportedYear → WarekiConvert Gregorian year to Japanese era (Wareki). Shows era, year, zodiac and age.Japanese Era ConverterConvert between Japanese eras (Reiwa/Heisei/Showa etc.) and Western years. Shows age, zodiac, and star signJapanese Text ConverterSwitch between full-width/half-width and hiragana/katakana conversion with tabs

🔥 Popular Tools

Image Format ConverterConvert between PNG, JPEG, WebP, GIF, and BMP. Select the target format, drop your files, and convert in bulk. No upload needed.JSON FormatterFree online JSON formatter, linter and parser. Format JSON with pretty print, minify, json lint, json parse and json reader — all in your browser.Text DiffCompare two texts and display differences with color highlightingQR Code GeneratorGenerate QR codes from URLs or text. PNG/SVG download and label printing supportedBase64Free online Base64 encoder & decoder. Encode or decode Base64 strings instantly. Supports UTF-8, URL-safe b64 mode (RFC 4648) — all in your browser.JSON to CodeAuto-generate type definitions from JSON for TypeScript, Zod, Go, Python, Java, C#, Kotlin, and JSON Schema. Free json schema generator and json to typescript converter.SVG to PNGConvert SVG files or SVG code to PNG imagesImage CompressReduce image file size by adjusting qualityPassword GeneratorGenerate secure passwords using crypto.getRandomValues(). Configure charset, length, exclusions and view entropy

📁 All Categories

Text ToolsTools for converting, comparing, and generating text10 toolsData FormatsTools for converting and formatting JSON, XML, YAML, CSV, and more16 toolsEncode & CryptoTools for hashing, UUID, Base64, JWT, password generation, and encoding7 toolsDev UtilitiesUtilities for date/time, CSV, SQL, and other development tasks6 toolsCSS & DesignCSS generators and color tools12 toolsImage ToolsTools for cropping, converting, processing images and generating icons12 toolsBatch Image ProcessingResize, compress, rotate, and convert image formats in batch16 toolsWeb & SEOMarkdown, HTML conversion, and SEO tag generation tools8 toolsNumbers & UnitsTools for number formatting, unit conversion, file size, and timezone conversion4 toolsCode GeneratorsTools for generating QR codes, barcodes, and CSV labels3 toolsSimple AppsLightweight daily tools: notepad, calculator, timer, clock, todo, and more7 tools