Download YouTube MP3 and MP4 on Android

Convert YouTube to MP3 on your phone · on-device after one-time setup · you own the rights

TheOwlBay Android downloader is a free APK to convert YouTube to MP3 or save MP4 on your phone. Install a small app, watch a short how-to on first launch, and let it download yt-dlp and ffmpeg to your device. Then paste a YouTube URL or tap Share → TheOwlBay to save files into Downloads/TheOwlBay. Conversion runs on your phone — not on TheOwlBay servers. No account. Not on Google Play.

Download APK v1.0.15

Preview build for sideload install. Verify the checksum after download if your browser or mirror changes the file.

Download APK (27.1 MB)

SHA-256: c5a61db9c34dc90f0c682c16a985bcb76ead36c3ca2e2e540caba6d7f1a8f5fb

Package: com.theowlbay.downloader · Android 7+ · arm64

What you get

MP3 selected by default; pick MP4 (360p / 720p / best) if you prefer video.
Paste watch, Shorts, embed, or youtu.be links.
Share a link directly from the YouTube app.
First-run setup asks for notification permission and verifies tools on your phone.
Eight languages inside the app (same locales as the site).

Install steps

Download the APK with the button above.
When Android asks, allow installs from your browser or Files app (unknown sources).
Open TheOwlBay and stay on Wi‑Fi for the one-time setup (~17 MB tools after install).
Paste a link or share from YouTube, and save to Downloads.

Copyright

You are responsible for copyright. Only download content you own or have explicit permission to save. TheOwlBay does not bypass YouTube sign-in or platform restrictions.

Why convert YouTube to MP3 on Android

YouTube watch pages are built for streaming, not for dropping an MP3 into a lesson folder or podcast editor. The TheOwlBay APK solves a different job: install once on your phone, paste or share one URL, and save a file you have rights to use — your own lecture, a track you licensed, or content you uploaded. YouTube loop replays in the browser without downloading. What to listen suggests artists from a catalog. Mic record captures your microphone locally. Use this page when you know the video and need an offline MP3 or MP4 on Android, not a browser replay or a random song pick.

How to install and convert

Tap Download APK with the button above and save the file. When Android asks, allow installs from your browser or Files app. Open TheOwlBay on Wi‑Fi and wait for the one-time setup to finish (~17 MB). Paste a watch, youtu.be, embed, or Shorts URL into the app, or tap Share → TheOwlBay from the YouTube app. MP3 is selected by default; pick MP4 quality if you prefer video. Files save to Downloads/TheOwlBay. Verify the SHA-256 checksum above if your mirror changed the APK.

What happens on your phone

After setup, yt-dlp and ffmpeg run locally on your device. Your YouTube URL is not sent to TheOwlBay servers for conversion. ffmpeg and the Python runtime ship inside the APK; the first launch downloads Python libraries and the yt-dlp script over Wi‑Fi. Files save to Downloads/TheOwlBay. TheOwlBay does not bypass YouTube sign-in or platform restrictions. Only submit URLs for content you may download.

Who uses a YouTube to MP3 downloader

Teachers archiving a lecture they uploaded, podcasters pulling a clip from their own channel, language learners saving a pronunciation exercise they created, and DJs with rights to a track reach for a converter when streaming is not enough. It is not a loop player — use YouTube loop for replay. It is not a random picker — use What to listen. It is not a microphone recorder — use Mic record for local voice notes. TheOwlBay is free and does not require an account.

FAQ

Is this on Google Play?

No. Install the APK from this page. Allow installs from your browser or Files app when Android asks.

Does download happen on my phone?

Yes. After a one-time setup downloads yt-dlp and ffmpeg to your device, conversions run locally and files save to Downloads/TheOwlBay.

How is this different from YouTube loop?

YouTube loop replays in the browser without downloading. This page installs an Android app that saves MP3 or MP4 files on your phone.

Who is responsible for copyright?

You are. Only download content you own or have explicit permission to save.

Which phones are supported?

Android 7+ on arm64 phones. The first launch needs Wi‑Fi to fetch the downloader tools (~17 MB total after setup).