logo yt1sYT1s

Instant YouTube converter for MP3 and MP4

Paste a YouTube link and get a clean MP3 or MP4 with reliable quality. No accounts, no overlays, no clutter — just files that play smoothly on phones, laptops and TV.

No watermark overlaysFree, fast and simpleReady for all devices

What makes YT1S a better YouTube converter

Unlimited Downloads

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

Multiple Qualities Available

MP3 from 64–320kbps and MP4 from 144p–4K when available. Compact for quick sharing or detailed for home and large 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 truly play everywhere

MP3
MP4
M4A
WEBM
WAV
AAC
3GP

MP3, MP4, WEBM and M4A with standard codecs for real‑world compatibility. No installer bundles or watermark overlays.

Pick audio for the commute or full video for big screens. Natural quality settings keep size and fidelity balanced.

Why YT1S feels better to use

  • Clean outputs that just play — no overlays or bundled extras.
  • No sign‑ups or quotas; convert freely whenever you need.
  • Quality presets that make sense for real devices and networks.
  • Works reliably on phones, tablets, laptops and TVs.
  • Files organize easily and sync to the cloud without friction.
  • An uncluttered interface focused on download and playback.

Ways people use YT1S every day

Create an offline playlist for commutes, flights and workouts.
Save tutorials and lessons for study and reference.
Keep guides and recipes handy in the kitchen or workshop.
Collect talks and interviews for research or classroom use.
Export your own channel’s videos as a personal archive.
Share compact clips that play well on any device.

Convert in three clear steps

1

Copy the YouTube video URL

Paste the link or search by exact title/channel to find the right video.

2

Paste URL and select format

Select MP3 or MP4 and a quality that fits your device and connection.

3

Download your converted file

Download and play anywhere. Rename and organize for quick cloud sync if you like.

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.

Questions people ask about YT1S

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.