Free shadowing for any YouTube video

Say it with the speaker.

Sada is a free website for shadowing any captioned YouTube video: practise one line at a time, record yourself and compare your words and timing with the original speaker. No account, no paid plan.

Your first sentence · Repeat mode “You don't need to speak fast.” The line is already selected. Listen first, then record your voice. Try this sentence
  • Free
  • No account
  • No extension
  • Recordings stay on your device

The method

Shadowing means copying a real speaker, straight away.

Listen to a line and say it along with the speaker, or right after: the words, the rhythm, the pauses. It trains your ear and your mouth together.

The trouble is, on your own you can’t tell how close you got. Sada listens and tells you.

What shadowing is, and how to do it step by step

Listen-and-repeat practice with real sentences, short to long

SpeakerYouA demonstration, not your voice.

How it works

Three steps, then again tomorrow.

  1. 1

    Paste a link

    Any YouTube video with captions, or pick a famous talk. Sada splits it into short lines from the captions. It plays from YouTube; Sada never downloads it.

  2. 2

    Shadow it, line by line

    Shadow mode: speak at the same time as the speaker. Repeat mode: hear the line, then say it in the silence after. Slow it to 0.75× and loop a hard line.

  3. 3

    Compare, and keep going

    See which words were heard, which you missed, and how far behind the speaker you were. Then play your take next to the original.

A take scored in Sada: 78% match, 7 of 9 words, with “your” and “commencement” missed in red.

Your score

An honest score, word by word.

Green was heard, red was missed, and dotted words are unclear in the video itself, so they count for nobody.

It measures

Which of your words were heard, which you missed, and how many seconds behind the speaker you were.

It doesn’t measure

Each individual sound, or your accent. You judge that by ear, with your take next to the original.

An example on a line from Steve Jobs’ Stanford speech, not a user’s result.

What the pronunciation check shows, and what it does not

Ready to practise

Start with a talk you already know.

Or paste any link. These open straight into practice.

or bring your own video

Browse practice talks by level

Private by design

Your voice stays with you.

  • Recognised on your device

    Speech recognition runs in your browser. Your recordings are never uploaded.

  • Saved in your browser

    Your takes stay in this browser. Delete any take with one click.

  • No account needed, no card, no extension

    Practise without signing up or installing anything. A free account is optional.

  • One download, once

    The first visit downloads the speech model once (about 250 MB), so use Wi‑Fi.

Languages

Any language with captions.

Sada works with any YouTube video that has captions. It has been tested well in these six:

  • English
  • Deutsch
  • Português
  • Español
  • Italiano
  • Français

The interface is in English, Arabic or Vietnamese.

Price

Free.No account needed.

  • No card, no trial, nothing to cancel
  • Works in the browser on phones and computers
  • Recordings stay on your device
Start practising

Questions

Before you start.

Do I have to turn on my camera?

No. Voice only is the default, and every feature works without the camera.

Which videos work?

Any public YouTube video with captions, written by the creator or made by YouTube automatically. Without captions there are no lines to practise.

Does my voice leave my device?

No. Speech recognition runs in your browser. The first visit downloads the speech model once; after that it works from your browser’s cache.

Does Sada grade my accent?

No. Sada shows which of your words came across and how far behind the speaker you were. You judge the accent by ear, with your take next to the original.

Does it work on my phone?

Yes, in the browser on iPhone and Android, and on computers. No app store and no download.

What does it cost?

Nothing.

Pick a video you love. Start with one line.

No account, no download, and no camera unless you want one.