Development
Compare performance of different regex patterns, identify bottlenecks, and detect degenerate cases
regex-benchmarkDevelopment
Detect error-prone and risky regex patterns, check for catastrophic backtracking, unanchored patterns, and provide rewrite suggestions
regex-linterDocument Tools
Create PDF documents with text, paragraphs, headers, footers, and page numbers
pdf-basic-text-docDocument Tools
Create newspaper/magazine style documents with 2 or 3 columns
pdf-multi-column-layoutHealth
Calculate your estimated one repetition maximum (1RM) for weightlifting
one-rep-maxValidation
Validate passport numbers from different countries (China, USA, Japan, etc.)
passport-validatorMedia
Convert OGG Vorbis audio to MP3 with bitrate, resampling, and channel options
ogg-to-mp3Media
Convert Opus audio to MP3 with selectable bitrate, resampling, and channel options
opus-to-mp3Data Visualization
Generate parallel coordinates charts for multidimensional data visualization with customizable normalization
parallel-coordinates-chartData Visualization
Create range charts to visualize min-max value ranges with median markers and outlier detection
range-chart-generatorData Visualization
Generate strategic quadrant charts for four-quadrant analysis, priority sorting, and strategic decision making
quadrant-chartData Visualization
Chart displaying min-max ranges and time intervals, simplified version of Gantt chart
range-bar-chart