Analyze
Examine and interpret data, text, and patterns to gain insights. Validate formats, detect patterns, assess performance, and understand complex information structures.
Word and Character Count Tool
Counts words, characters with and without spaces, sentences, paragraphs, and average word length from any pasted or typed text.
Amazon Listing Preview Tool
Renders one row of an Amazon flat file as the product page it will become, with every value naming the spreadsheet cell...
JavaScript Tester
Run JavaScript code snippets directly in the browser and capture console output, return values, and runtime errors without any server or build...
Token Calculator
Counts tokens in pasted text with OpenAI's o200k_base byte-pair tokenizer, exact for GPT-4o and newer and approximate for other providers.
Word Counter
Counts words, characters with and without spaces, sentences, and paragraphs in pasted text, with optional Flesch reading score and reading-time estimate.
Whitespace Formatter Tool
Improve text readability in large blocks of text or code by removing extra whitespace, standardizing heading formats, applying text transformations, and preserving...
Text Comparison Tool
Diffs two text inputs (typed, pasted, or dropped as files) character by character, highlighting every insertion and deletion in both panels.
Shop Audit Checklist
Audit your online shop across five key categories with a scored checklist tailored to Etsy, Amazon, Shopify, eBay, and Walmart.
Text Bigrams Generator
Extract word-level or character-level bigrams from any text and rank them by frequency, alphabetical order, or ascending count.
Regex Tester
Test and debug regular expressions against a test string, listing each match with its index, capture groups, and an optional replacement preview.
Basic Color Contrast and Font Size Legibility Checker
Evaluate foreground and background color pairs against WCAG 2.
What is My IP? Analyzer
Detects the visitor's public IPv4 and IPv6 addresses and resolves geolocation, ISP, ASN, organization, connection type, and timezone.
IP Subnet Calculator
Computes network, broadcast, wildcard, binary mask, and first/last usable host from IPv4 + mask or IPv6 + prefix, plus total addresses and...
Checksum Calculator
Compute MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 checksums from text or file input directly in the browser.
Text N-Grams Generator
Extract word and character n-grams from any input text with ranked frequency counts and percentage breakdowns per sequence.
Website Page Size Checker
Splits pasted HTML source into byte counts for markup, inline CSS, inline JavaScript, comments, and visible text.
Meta Title and Description Length Checker Tool
Simulate how your website's meta title and meta description will appear in Google, Bing, and mobile search results.
TRIZ Contradiction Matrix and Inventive Principles Tool
Looks up TRIZ inventive principles in Altshuller's 39 by 39 contradiction matrix from a chosen improving and worsening parameter pair.
Keyword Density Checker
Keyword density divides each word or phrase count by the total word count, for single words and for two-, three-, and four-word...
Code to Text Ratio Checker
Computes the visible text content ÷ total HTML markup ratio (as a percentage) from a live URL fetched through a CORS proxy...
Screen Resolution Simulator
Reports the browser's screen size, viewport size, device pixel ratio, and color depth on load and on every resize.
JSONPath Tester
Evaluate JSONPath expressions against any JSON document and inspect every matching node alongside its full path in the data tree.
Browser Detector Tool
Reports browser name and version, classic User Agent and User Agent Client Hints (UA-CH), OS, device memory, and a device-type heuristic.
JSON Validator and Formatter
Validates JSON and either pretty-prints with two-space indentation or compresses to a single line.
Secrets Redactor
Scan and redact API keys, tokens, passwords, private keys, and other credentials from pasted text before sharing code snippets or providing context...
Text Skip-Grams Generator
Extract skip-grams from any text by specifying the n-gram size and maximum skip distance between selected tokens.
Operations Ratios Calculator
Compute operational efficiency ratios from income statement and balance sheet data, covering margins, turnover, and the cash conversion cycle.
JSON Viewer
Parse, format, and explore JSON data through a collapsible tree view with expand and collapse controls at every nesting level.
SaaS Churn Forecast
Projects MRR, active customers, churn count, and cumulative revenue month by month over a horizon up to 120 months.
GTIN Digit Checker
Validate GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14, ISBN-10, and ISBN-13 barcodes by verifying or computing the check digit.
Java Viewer
Paste Java source code and view it with syntax highlighting, line numbering, and code statistics such as comment density.
Meta Tags Analyzer
Parses pasted HTML and rates its title, meta description, Open Graph, X Card, viewport, charset, robots, and canonical tags.
Web Code Validator and Formatter
Validate and format HTML, CSS, JavaScript, and YAML.