Developer, security and utility tools that help us work smarter every day.


37 tools
Open a network recording to find the slowest and largest requests, failures, third-party calls and credentials left in headers.
Open toolBuild a layered CSS box-shadow visually, with inset support and a light or dark preview, then copy the declaration.
Open toolRe-indent minified or messy JavaScript and TypeScript into readable code, with your choice of indentation and brace style.
Open toolValidate a JSON document against a JSON Schema and see exactly which fields fail and why.
Open toolConvert text to its binary (base-2) byte representation, or decode binary back to text.
Open toolQuery a JSON document with a JSONPath expression and see the matches.
Open toolGenerate SEO, Open Graph, and Twitter Card meta tags for a page.
Open toolGenerate monochromatic, analogous, complementary, and triadic palettes from one base color.
Open toolWrite Markdown and see the sanitized, rendered preview side by side.
Open toolBuild a linear or radial CSS gradient visually and copy the generated code.
Open toolTranspose a CSV, or convert it to TSV, YAML, or a Markdown table.
Open toolConvert text to and from Base32, the encoding used for TOTP/2FA secret keys.
Open toolGenerate sortable ULIDs, or decode the creation timestamp embedded in an existing one.
Open toolGenerate a QR code from text or a URL, or decode one from an uploaded image.
Open toolConvert special characters to and from HTML entities like & and <.
Open toolRe-indent HTML markup into a consistent, readable style.
Open toolBeautify CSS for readability, or minify it down for production.
Open toolRe-indent a SQL query into a consistent, readable style.
Open toolCompare two blocks of text line by line, or two JSON documents field by field.
Open toolConvert between JSON and YAML in either direction.
Open toolExplain a cron expression in plain English and see its next 5 run times.
Open toolGenerate TypeScript interfaces from a JSON sample, ready to paste into your code.
Open toolScan a CSV for rows with missing columns or empty cells, with the exact line numbers.
Open toolCheck that XML is well-formed and re-indent it, with a line-and-column error if it isn’t.
Open toolConvert a JSON object or array into indented XML markup.
Open toolConvert CSV rows with a header line into a JSON array of objects.
Open toolConvert a JSON array of objects into a CSV file, flattening nested fields into dotted columns.
Open toolSort a JSON object’s keys alphabetically, ascending or descending.
Open toolEscape a raw string for embedding inside JSON, or unescape one back to plain text.
Open toolCheck whether a JSON document is well-formed, with a clear error message when it isn’t.
Open toolConvert numbers between binary, octal, decimal and hexadecimal.
Open toolConvert colors between HEX, RGB and HSL, with a live picker preview.
Open toolTest a regular expression against sample text with live, highlighted matches.
Open toolGenerate cryptographically random UUID v4 identifiers, one or many at a time.
Open toolPercent-encode or decode text and URLs for safe use in query strings.
Open toolConvert text to and from Base64, including full Unicode support.
Open toolFormat, minify, and validate JSON with a clear error message when it isn’t valid.
Open tool