EXPLORE TOOLS
Developer Tools
Everyday developer utilities. Browse 53 tools below.
JSON FormatterValidate and format JSON.
JSON to CSVExport arrays of JSON objects to CSV.
CSV to JSONTurn CSV data into structured JSON.
UUID GeneratorCreate UUID v4 values.
SHA-256 Hash GeneratorHash text with browser cryptography.
Unix Timestamp ConverterConvert Unix time to local readable dates.
HTML Escape / UnescapeConvert special HTML characters.
Regex TesterTest regular expressions against text.
HEX to RGB ConverterConvert hexadecimal colors into RGB values.
CSS MinifierRemove simple CSS whitespace and comments.
JSON MinifierValidate JSON and remove unnecessary whitespace.
JSON Sort KeysSort object keys recursively in valid JSON.
JSON Path ExtractorExtract a value from JSON using simple dot and bracket paths.
JSON Array to JSONLTurn a JSON array into one JSON value per line.
JSONL to JSON ArrayCombine newline-delimited JSON into a valid array.
XML FormatterValidate and indent XML document text.
XML MinifierRemove whitespace between XML tags without altering text nodes.
HTML to TextExtract readable plain text from pasted HTML.
URL ParserInspect protocol, host, path, and query of a URL.
Query String ParserConvert a URL query string to a readable JSON object.
Query String BuilderBuild an encoded query string from JSON key-value pairs.
JWT Payload DecoderInspect an unverified JWT header and payload without validating its signature.
UUID ValidatorCheck whether a string matches a standard UUID format.
Random HEX GeneratorGenerate random hexadecimal bytes using browser cryptography.
SHA-512 Hash GeneratorCompute the SHA-512 digest of UTF-8 text.
HMAC-SHA256 GeneratorCalculate a keyed SHA-256 message authentication code.
CSV to TSVTurn a CSV table into tab-separated text.
TSV to CSVTurn tab-separated values into quoted CSV.
Remove Duplicate CSV RowsRemove duplicate data rows from a CSV table.
CSV Column SelectorSelect named columns from a CSV table.
CSS Gradient GeneratorCreate CSS linear gradients from two colors.
Color Contrast CheckerCalculate WCAG relative contrast for two colors.
Color Palette GeneratorGenerate a simple HSL color palette from a HEX base.
HEX RGB HSL ConverterConvert HEX colors to RGB and HSL values.
File to Base64Encode a small local file into Base64 text.
CSS Box Shadow GeneratorCreate and copy CSS box shadows with blur, spread, color and offsets.
CSS Border Radius GeneratorCreate rounded corner CSS with independent corner settings.
CSS Glassmorphism GeneratorBuild glass-like CSS panels with blur and translucency.
CSS Flexbox GeneratorGenerate flexbox CSS with alignment, direction and gap controls.
CSS Grid GeneratorGenerate responsive grid layout CSS using columns and gaps.
Fluid Typography CSS Clamp CalculatorCalculate a responsive CSS clamp() font-size rule from viewport endpoints.
CSS Text Shadow GeneratorGenerate CSS text-shadow rules with preview.
CSS Transform GeneratorCreate CSS rotate, translate and scale transforms.
JSON Difference CheckerCompare two JSON objects and list changed paths.
JSON Flatten ToolFlatten nested JSON objects into dot-path keys.
JSON to TypeScript GeneratorGenerate TypeScript interfaces from a sample JSON document.
CSV MergerMerge pasted CSV datasets with matching headers.
CSV to Markdown TableConvert CSV rows into a Markdown table.
CSV Column StatisticsCalculate min, max, mean and sum for numeric CSV columns.
QR Code GeneratorCreate a downloadable QR code for any URL or text.
Wi-Fi QR Code GeneratorMake a scannable Wi-Fi join QR code without sharing it online.
vCard QR Code GeneratorShare contact details through a downloadable QR code.
JSON Diff ViewerCompare JSON objects and arrays and find added, removed or changed values.
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What can you do with Developer Tools?
Work with JSON, CSV, XML, hashes, JWT payloads and colors right in your browser. Validate any generated output before production use.
Choose the tool that matches the input and output you need. All tools listed here include a workspace and short instructions. For file tools, compatibility depends on the browser and your device.
