CraftSprint
178 free tools · CraftSprint AI · 100% in your browser
Format JSON, test regex, decode JWTs, convert data, minify code, build SQL and test APIs in one place. 28 tools, all free and private.
Compare two texts and see exactly what was added or removed.
Use Text Diff CheckerWrite Markdown and see a live rendered preview side by side.
Use Markdown PreviewerConvert Markdown source into raw HTML markup to copy anywhere.
Use Markdown to HTMLConvert HTML markup into clean Markdown source.
Use HTML to MarkdownValidate, format and minify JSON with clear error messages.
Use JSON FormatterPaste JSON and generate matching TypeScript interfaces.
Use JSON to TypeScriptConvert a JSON array of objects into a downloadable CSV table.
Use JSON to CSV ConverterPaste CSV data with a header row and convert it into clean JSON.
Use CSV to JSON ConverterEncode text to Base64 or decode Base64 back to plain text.
Use Base64 Encoder/DecoderEncode text for safe use in a URL, or decode a URL-encoded string.
Use URL Encoder/DecoderPaste a JSON Web Token to instantly decode its header and payload.
Use JWT DecoderTest regular expressions against sample text and see every match.
Use Regex TesterGenerate random UUID v4 identifiers for code, databases and testing.
Use UUID GeneratorGenerate SHA-1, SHA-256, SHA-384 or SHA-512 hashes from text.
Use Hash GeneratorConvert between Unix timestamps and human-readable dates.
Use Timestamp ConverterTurn a cron schedule into a plain-English description.
Use Cron Expression ParserEstimate how many tokens a prompt will use before calling an AI API.
Use AI Token CounterStrip comments and extra whitespace from HTML markup.
Use HTML MinifierStrip comments and extra whitespace from CSS.
Use CSS MinifierStrip comments and extra whitespace from JavaScript source.
Use JavaScript MinifierVisually build a SELECT statement with columns, filters and sorting.
Use SQL Query BuilderSend a REST request and inspect the status, headers and response body.
Use API Testing ToolTransform readable JavaScript into a hard-to-read but working version.
Use JavaScript ObfuscatorConvert numbers between binary, octal, decimal and hexadecimal.
Use Number Base ConverterNetwork, broadcast, mask and host range for any IPv4 CIDR.
Use IP Subnet CalculatorConvert Linux file permissions between checkboxes, numbers and symbols.
Use Chmod CalculatorBeautify SQL queries with clean line breaks and keyword case.
Use SQL FormatterIndent and validate XML with clear error messages.
Use XML Formatter
