All SpecWhale tools

Scale a recipe ingredient amount for more or fewer servings.

Calculate bread dough hydration percentage.

Calculate coffee or water amount from brew ratio.

Convert HEX color codes to RGB values for use in CSS, design tools, or code.

Convert RGB color values to a HEX color code for use in CSS or design tools.

Convert HSL color values to a HEX color code for use in CSS or design tools.

Generate a CSS linear gradient from two colors and an angle.

Generate CSS box-shadow values from simple inputs.

Generate CSS border-radius shorthand from one or more corner values.

Generate a CSS filter string from common values.

Generate basic JSON-LD WebApplication markup.

Generate FAQPage JSON-LD from question and answer pairs.

Generate BreadcrumbList JSON-LD from label and URL pairs.

Generate a canonical link tag to tell search engines your page's preferred URL.

Generate robots meta tags for index/follow options.

Convert .env key-value lines into a JSON object for configs and scripts.

Escape text into a valid JSON string value, handling quotes and control characters.

Convert basic Markdown headings, bold text, links, and paragraphs to HTML.

Extract one CSV column by its header name, one value per line.

Format simple SQL with line breaks before common clauses.

Convert labels into uppercase environment variable names.

Generate a Basic Authorization header from username and password.

Convert a simple curl GET command into a JavaScript fetch snippet.

Generate common HTML link tags for stylesheet, preload, canonical, and icons.

Generate a mailto link with subject and body.

Generate a WhatsApp click-to-chat link that opens a pre-filled message.

Remove UTM and common tracking parameters from URLs.

Convert an IPv4 address to decimal and binary.

Calculate usable IPv4 host counts from CIDR prefix length.

Estimate IPv4 network range from address and CIDR prefix.

Convert multiple Unix timestamps to ISO dates.

Convert a line-separated list into a JSON array.

Convert a JSON array into one item per line.

Count word frequency in pasted text and rank the most common words.

Count character frequency in pasted text.

Replace all exact matches in a text block locally.

Convert text to 8-bit binary byte values.

Convert 8-bit binary byte values back to text.

Encode or decode text with the ROT13 letter substitution.

Shift letters by a custom Caesar cipher amount.

Convert comma-separated values to tab-separated values.

Convert tab-separated values to comma-separated values.

Convert CSV rows into an HTML table snippet.

Convert label and URL lines into Markdown links.

Generate a starter set of common security headers for static sites.

Generate a starter Content-Security-Policy header.

Generate an HTTP Strict-Transport-Security header.

Generate basic CORS headers for a known allowed origin.

Generate a simple SPF TXT record from include, ip4, ip6, or mx mechanisms.

Generate a simple DMARC TXT record from policy and report address.

Generate a tiny starter DNS zone file from a domain and IPv4 address.

Generate a practical .gitignore snippet for Node, macOS, logs, and Cloudflare projects.

Generate a compact .dockerignore starter file.

Convert miles to feet instantly (1 mi = 5.2800e+3 ft), free and accurate.

Convert feet to miles instantly (1 ft = 0.000189394 mi), free and accurate.

Convert miles to yards instantly (1 mi = 1.7600e+3 yd), free and accurate.

Convert yards to miles instantly (1 yd = 0.000568182 mi), free and accurate.

Convert inches to millimeters instantly (1 in = 25.4 mm), free and accurate.

Convert centimeters to feet instantly (1 cm = 0.0328084 ft), free and accurate.

Convert feet to centimeters instantly (1 ft = 30.48 cm), free and accurate.