Media
Extract audio from video files with advanced options - multiple formats, quality settings, and audio enhancement
video-audio-extract-enhancedMedia
Normalize audio in video files to consistent loudness levels using EBU R128 standard
video-audio-normalizeMedia
Remove the audio track from a video file, keeping only the video stream
video-audio-removeMedia
Adjust the audio volume in a video file by increasing, decreasing, or normalizing sound levels
video-audio-volumeMedia
Replace the audio track in a video file with a new audio file while keeping the original video
video-audio-replaceMedia
Change video display aspect ratio (DAR) without resizing the video
video-aspect-ratioText Processing
Convert Traditional Chinese text to Simplified Chinese with OpenCC phrase conversion
traditional-to-simplified-chinese-converterMath & Numbers
Convert US short tons to pounds with configurable decimal precision
ton-to-lbMath & Numbers
Analyze two categorical factors and their interaction with a two-way ANOVA table
two-way-anova-calculatorMath & Numbers
Compare two independent proportions with a pooled two-proportion Z test and confidence interval
two-proportion-z-test-calculatorMath & Numbers
Run an independent two-sample t test with pooled variance from raw data or summary statistics
two-sample-t-test-calculatorMath & Numbers
Calculate PDF, CDF, survival probability, and interval probability for a continuous uniform distribution
uniform-distribution-calculator