🧑💻 Developer & Code Tools
Format, validate, convert and encode data, all in your browser. 25 free tools, no sign-up.
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API Request BuilderSend a test HTTP request from your browser and generate cURL and fetch code. Free, no sign-up. Runs…Base64 DecoderDecode Base64 (or URL-safe Base64) back to text. Free, no sign-up. Runs in your browser.Base64 EncoderEncode text (UTF-8) to Base64. Free, no sign-up. Runs in your browser.CSS BeautifierFormat minified CSS into readable rules. Free, no sign-up. Runs in your browser.CSS MinifierCompress CSS by removing comments and whitespace. Free, no sign-up. Runs in your browser.Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes locally. Free, no sign-up. Runs in your browser.HTML FormatterBeautify HTML with readable indentation. Free, no sign-up. Runs in your browser.HTML MinifierRemove comments and extra whitespace from HTML. Free, no sign-up. Runs in your browser.HTML to MarkdownConvert HTML snippets into Markdown. Free, no sign-up. Runs in your browser.JavaScript BeautifierBasic JavaScript formatter that indents braces and statements. Free, no sign-up. Runs in your browser.JavaScript MinifierBasic JavaScript minifier that removes comments and blank space. Free, no sign-up. Runs in your browser.JSON FormatterFormat, beautify or minify JSON with clear error messages. Free, no sign-up. Runs in your browser.JSON to CSV ConverterConvert a JSON array of objects to CSV, flattening nested fields. Free, no sign-up. Runs in your browser.JSON to XML ConverterTurn JSON into well-formed XML with a custom root element. Free, no sign-up. Runs in your browser.JSON ValidatorCheck whether JSON is valid and see where an error occurs. Free, no sign-up. Runs in your browser.JWT DecoderDecode a JSON Web Token header and payload. It does not verify signatures. Free, no sign-up. Runs in…Markdown to HTMLConvert Markdown to clean HTML with a live preview. Free, no sign-up. Runs in your browser.QR Code GeneratorCreate QR codes for links, text and Wi-Fi. Download as PNG or SVG. Free, no sign-up. Runs in…Regex TesterTest regular expressions with matches, groups and replacement. Free, no sign-up. Runs in your browser.Timestamp ConverterConvert Unix timestamps to dates and dates to Unix time. Free, no sign-up. Runs in your browser.URL DecoderDecode percent-encoded URLs and text. Free, no sign-up. Runs in your browser.URL EncoderPercent-encode text or URLs safely. Free, no sign-up. Runs in your browser.UUID GeneratorGenerate random version 4 UUIDs using your browser’s secure random source. Free, no sign-up. Runs in your browser.XML FormatterPretty-print XML with consistent indentation. Free, no sign-up. Runs in your browser.XML ValidatorCheck XML for well-formedness errors. Free, no sign-up. Runs in your browser.Meta Tag GeneratorGenerate SEO, Open Graph and Twitter meta tags.Robots.txt GeneratorBuild robots.txt with AI crawler rules and sitemap.Schema Markup GeneratorJSON-LD for Organization, LocalBusiness, FAQ or Article.UTM Link BuilderBuild campaign URLs with UTM parameters.Password GeneratorStrong random passwords generated in your browser.Google SERP Snippet PreviewPreview how your title and description look in Google.No tools match your search.