Is Composer a Free Browser-Based TTML Editor?

Updated

Yes. Composer (composer.betterlyrics.org) is described as a free, browser-based TTML creator for making synced lyrics for Apple Music, Spotify, and other streaming platforms. You don't install a desktop app — you open the site and work in your browser, provided JavaScript is enabled.

What "free" and "browser-based" mean here

  • Free: The site presents itself as a free TTML creator. No pricing, subscription, or payment details are listed on the page.
  • Browser-based: The tool loads and runs on the website itself. The page shows a "Loading Composer" state and notes that you must enable JavaScript to use it — so a modern browser with JS turned on is the only stated requirement.
  • No install mentioned: Nothing on the page describes a downloadable or desktop version. The workflow happens on the site.

What you can do with it

According to the site, Composer supports:

Feature What it gives you
Audio import Import any audio file to sync against
Tap-to-sync Tap along to sync lyrics word by word
Visual timeline + waveform Adjust TTML timing precisely
Sync granularity Word-level and line-level
Syllable splitting Karaoke-style timing
Multi-agent support Duets, backing vocals, group parts
Live preview Real-time animated lyrics preview
Export Standard TTML files for Apple Music and Spotify

Quick start

  1. Open composer.betterlyrics.org in a browser with JavaScript enabled.
  2. Import your audio file.
  3. Add your lyrics and tap along to sync them word by word.
  4. Fine-tune timing in the visual timeline using the waveform.
  5. Preview the animated result, then export a standard TTML file.

Things to check before relying on it

  • JavaScript is required — if the page stays on "Loading Composer," check that JS isn't blocked.
  • Pricing details aren't listed — the site calls itself free, but no pricing page or payment info is shown, so treat "free" as the site's own description rather than a verified plan structure.
  • Export format — it produces standard TTML, which the site says is ready for Apple Music and Spotify.