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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

Online Audio Converter logo
Online Audio Converter
✓ verifiedFreemium

Free browser-based audio converter (123apps) supporting 300+ formats to MP3, WAV and more, with tag editing and batch conversion.

4.1M visits/mo
Moises.ai logo
Moises.ai
✓ verifiedFreemium

Musician toolkit for AI stem separation, vocal removal, practice, and vocal/stem generation, any device.

3.8M visits/mo
NaturalReaders logo
NaturalReaders
✓ verifiedFreemium

Established text-to-speech app that reads documents, PDFs and webpages aloud in 90+ languages across Personal, Commercial and EDU plans.

3.8M visits/mo
Udio logo
Udio
✓ verified

Popular AI music generator that turns text prompts into full songs with vocals and instrumentation in seconds.

1.7M visits/mo
Pricing
Free: $0 (70 files/day, up to 4 GB)
Premium: $6/mo (unlimited files, up to 10 GB, no ads)

No public pricing

No public pricing

No public pricing

Core features
  • Convert 300+ audio and video formats
  • Extract audio from video files
  • Adjustable quality, bitrate and channels
  • ID3 tag editing
  • Batch conversion to ZIP
  • Runs in-browser, files auto-deleted
  • AI stem separation and vocal remover
  • Pitch and tempo practice tools
  • AI Studio for generating stems
  • Voice Studio for AI vocal parts
  • Video recording with studio-quality audio
  • Cross-platform apps
  • AI text-to-speech in 90+ languages
  • Reads PDFs, docs, webpages and scanned books
  • Voice cloning and prompt-based voice design
  • Study tools: AI podcast, recap, chat, quizzes
  • Web app, mobile apps and Chrome extension
  • Text-to-music generation with vocals and instrumentation
  • Song extension and remixing tools
  • Genre and style-guided generation
  • Library of user-generated tracks to explore
Use cases
  • Converting audio to MP3 or other formats
  • Making iPhone ringtones (M4R)
  • Extracting a song from a video
  • Batch-converting many audio files
  • Isolating vocals or instruments for practice
  • Creating backing tracks
  • Songwriting and idea expansion
  • Listening to documents and ebooks
  • Creating commercial voiceovers
  • Accessibility for dyslexia and vision needs
  • Classroom and EDU accessibility
  • Musicians and hobbyists generating original song ideas from prompts
  • Content creators needing background music or soundtracks
  • Songwriters exploring melody and lyric ideas quickly
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