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Convert YouTube to MP3 & MP4 online

Turn YouTube links into clean MP3 and MP4 files in natural, predictable qualities. No sign‑ups, no watermarks, no hassles — just fast downloads ready to play on any device.

No watermarksFree and fastWorks on all devices

Why millions choose YT1S to convert YouTube

Unlimited Downloads

No limits and no accounts — convert what you need, when you need it.

Multiple Qualities Available

Pick MP3 from 64 to 320kbps and MP4 from 144p up to 4K (when available). Choose compact files for quick sharing or premium quality for home listening and big screens.

Works on All Devices

Optimized for mobile and desktop; opens in common players without installing anything.

Safe and Clean Files

Outputs arrive without bundled installers, trackers or watermarks. Keep a clean, private library across devices.

Cloud Upload Options

Send files to Google Drive or Dropbox and access your music and videos across phone, tablet and desktop with simple syncing.

Works in All Browsers

Works smoothly in Chrome, Firefox, Safari, Edge and more. The interface stays responsive even on mid‑range phones and older browsers.

Formats that play everywhere

MP3
MP4
M4A
WEBM
WAV
AAC
3GP

Choose MP3, MP4, WEBM and M4A with standard codecs for broad compatibility — no watermarks.

Audio for on‑the‑go or video for big screens; natural qualities for balanced file sizes.

Reasons people choose YT1S

  • Fast conversions with clean outputs that play everywhere.
  • No accounts, quotas or watermark overlays on your files.
  • Flexible quality — compact for sharing, premium for fidelity.
  • Works across devices and browsers on mobile and desktop.
  • Files sync easily to cloud storage and transfer without friction.
  • A simple interface focused on download and playback.

Popular Ways to Use YT1S

Build an offline music library for commutes and workouts.
Save tutorials and lectures for study and quick reference.
Keep recipes and walkthroughs handy in the kitchen or workshop.
Collect interviews and talks for research and classroom use.
Archive your own channel content as a personal backup.
Share compact clips with friends without worrying about players.

Convert YouTube to MP3 or MP4 in 3 steps

1

Copy the YouTube video URL

Paste the link or search by title/channel; exact terms speed up selection.

2

Paste URL and select format

Pick format and quality based on your device and connection.

3

Download your converted file

Download and play; organize or sync to the cloud when needed.

Helpful tips

Use exact titles to find the right version.
Prefer lower bitrates on mobile data, higher on Wi‑Fi.
Name files with a pattern to find them quickly.

Frequently asked questions about YT1S Converter

YT1S is an online YouTube downloader and converter that produces clean MP3 and MP4 without registration or watermarks. It focuses on speed, compatibility and predictable outputs so your files play everywhere.