Math & Numbers
Convert miles to kilometers with configurable decimal precision
miles-to-kmDevelopment
Convert OpenAPI or Swagger JSON/YAML specs into TypeScript API types, request payloads, and response models with configurable output and naming styles
openapi-to-typescript-generatorMath & Numbers
Calculate z-scores, cumulative probability, tail probability, and interval probability for a normal distribution
normal-distribution-calculatorData Processing
Get the item at a specific index using lodash _.nth
nth-itemDevelopment
Match multiple regex patterns against text in one operation
multi-pattern-matcherDevelopment
Parse and display named capture groups from regex patterns
named-group-testerDevelopment
Parse User Agent strings to extract browser, OS, device, and engine information
new-user-agent-parserText Processing
Remove all non-alphanumeric special characters from text with flexible preservation options
non-alphanumeric-cleanerText Processing
Remove HTML tags from code and extract clean text content
new-html-tag-stripperHealth
Calculate your estimated one repetition maximum (1RM) for weightlifting
one-rep-maxMedia
Convert a mono audio file to stereo (by duplicating channel)
mono-to-stereoMedia
Re-encode MP3 with a higher bitrate or VBR setting (for compatibility or delivery)
mp3-to-high-quality