Free: all tools with no sign-up or watermark on audio. Pro: $4.99/month, $1.99 for 7-day pass, or yearly plan (price not specified). Pro adds HQ split, removes watermark from videos, and increases transcription limit from 10 to 60 per hour.
Founding price $29 once, regular price $39 once; free web version for clips up to 5 minutes
Key features
Split songs into voice, drums, bass and other parts
Slow down songs to 50% speed without changing pitch
Change song key by up to 12 semitones
Loop sections and build speed for practice
Transcribe audio and generate subtitles
Identify song name and show lyrics
Mix parts with individual volume controls
Works on phone and desktop in browser with no app
Four caption styles: Bold, Clean, Punch, Reveal
MP4 and SRT file export
Offline transcription with no uploads
Yellow highlighting for uncertain words
Free browser version for clips up to 5 minutes
What makes it different
All processing runs on your device with no file upload to servers
Completely free with no sign-up or watermark on audio
Uses open-source Meta HTDemucs model for splitting
Handles files up to 500MB and 20 minutes long
Works instantly in browser without re-encoding video
Offline transcription on your own computer with no uploads or internet required
One-time purchase with no subscription, no per-video fees, and unlimited videos
Personal dictionary that learns and applies fixes across all videos
Batch export to caption an entire week of videos in one run
Hinglish support with Roman script output for Hindi-English creators
Extractune
Offline Captions