Math & Numbers
Compute the 2D signed area or 3D cross product between two vectors
cross-product-calculatorMath & Numbers
Solve cubic equations, classify the root pattern, and show Cardano-style intermediate values
cubic-equation-solverMath & Numbers
Calculate the nth term, first terms, and finite sum of an arithmetic sequence
arithmetic-sequence-calculatorMath & Numbers
Calculate antilogarithms for any valid base and optionally verify the result by applying the logarithm again
antilog-calculatorMath & Numbers
Calculate cube roots for positive or negative numbers and verify the cubed result
cube-root-calculatorDevelopment
Calculate CSS selector specificity scores, compare multiple selectors, and get suggestions for avoiding cascade conflicts
css-selector-specificity-calculatorDesign
Turn one primary hex color into a full design-token cascade with primary, accent, neutral, semantic tokens, CSS variables, and Style Dictionary JSON
color-token-cascade-generatorDevelopment
Compare two API response payloads, highlight field-level diffs, and classify likely functional changes versus harmless runtime drift
api-response-diff-semantic-analyzerText Processing
Translate full Markdown articles with AI while preserving headings, tables, links, images, and code blocks for direct publication
ai-markdown-article-translatorDevelopment
Generate pure CSS masonry-style layouts with responsive breakpoints, configurable gaps, and optional full-width skip selectors
css-masonry-layout-generatorDevelopment
Mutate OpenAPI request fields into semantically risky variants and optionally send them to a real backend to check defensive validation coverage
api-contract-mutation-testerData Processing
Infer a relational schema from CSV data and generate create-table plus ALTER migration plans for PostgreSQL, MySQL, SQLite, or SQL Server
csv-to-database-migration-planner