Free Developer Tools
Everyday utilities for developers — format JSON, encode and decode, hash, generate passwords and UUIDs, decode JWTs and convert colours. Nothing leaves your browser.
19 free tools
JSON Formatter & ValidatorBeautify, minify & validate JSONPopular;URL Encoder / DecoderPercent-encode or decode URLs;Base64 Encode / DecodeText to Base64 and back;HTML Entity Encoder / DecoderEscape & unescape HTML characters;Hash GeneratorSHA-1, SHA-256, SHA-512 & MD5;Password GeneratorStrong random passwordsPopular;UUID GeneratorRandom v4 UUIDs in bulk;Color ConverterHEX ↔ RGB ↔ HSL;JWT DecoderDecode JSON Web Tokens;Unix Timestamp ConverterEpoch time ↔ human date;URL Slug GeneratorSEO-friendly slugs from titles;JSON to CSV ConverterJSON array to CSV / Excel;CSV to JSON ConverterCSV rows to a JSON array;Binary, Hex & Decimal ConverterConvert between number bases;Regex TesterTest regular expressions live;Markdown to HTML ConverterMarkdown to clean HTML with preview;CSS Minifier & BeautifierShrink or format CSS;Image to Base64Image to data URI, HTML or CSS;Base64 to ImageDecode Base64 and download the image;
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PDF ToolsMerge, split, compress, sign & convert PDFsDocument ConvertersWord, Excel, PowerPoint, CSV, RTF & moreImage ToolsResize, compress, crop, edit & watermarkImage ConvertersJPG, PNG, WebP, HEIC, SVG, GIF, BMPQR Code GeneratorsUPI, Wi-Fi, WhatsApp, vCard & moreText ToolsWord counter, case converter, diff & moreCalculatorsEMI, GST, SIP, age, BMI & percentageVoice ToolsOn our sister site Verbonest