Free Chrome Extension · 10 popular languages · Launching soon

Transcript, AI summary & audio download for any YouTube video — in your language

A panel right inside YouTube: timecoded translated transcript, an AI summary with clickable timecodes, optional subtitle overlay on the player, and MP3 audio download in every language the channel publishes.

  • No credit card
  • Sign in with Google
  • Free tier with quota
  • Works on every YouTube video
Attention lets the model focus on the parts of the context that matter
How LLMs actually think — a visual intro
3Blue1Brown · 1.2M views · 6 days ago
AllTranscripts
🇺🇸English
🇪🇸Spanish
🇮🇳Hindi
🇯🇵Japanese
🇩🇪German
🇫🇷French
0:12Large language models are, fundamentally, very large mathematical functions.
0:34You feed text in, and out comes a probability distribution over the next token.
0:58That is how the network learns — a kind of evolution by gradient descent.
1:21Every parameter is a tiny lever that nudges the prediction in some direction.
1:47Billions of those levers are tuned together by backpropagation.
2:09Attention lets the model focus on the parts of the context that actually matter.
Live HTML mock · click the tabs to switch · final extension UI may differ visually

YouTube's built-in tools fall short. We fill the gaps.

Three problems every non-English viewer hits — solved in one extension.

"No subtitles in my language"

Most creators publish only English captions — if any. AllTranscripts generates a translated transcript in your language and can render it as an overlay directly on the YouTube player.

"I don't have time for a 40-minute video"

Get an AI summary in your language with clickable timecodes — read the gist, then jump to the parts that matter.

"I want to listen on the go"

Download the audio as MP3 in any language the channel publishes on YouTube (multi-language audio tracks).

Everything you need from a YouTube video — without leaving the page

Four tools, one panel. Pick a language once and switch between tabs.

Translated transcript with timecodes

A clean, readable transcript in your language. Click any line to jump to that point in the video. Copy as plain text or JSON for notes, research and translation pipelines.

AllTranscripts
Spanish
0:00Hola, bienvenidos a un nuevo episodio del canal.
0:12Hoy vamos a hablar sobre cómo se entrenan los modelos grandes de lenguaje.
0:34Le pasamos texto y obtenemos una distribución de probabilidad sobre la siguiente palabra.
0:58Así aprenden las redes neuronales — una especie de evolución por descenso de gradiente.
1:21Cada parámetro de la red es una pequeña palanca que mueve un poco la predicción.
1:47Miles de millones de esas palancas se ajustan con retropropagación.
ニューラルネットはこうして学習します — 勾配降下による進化のようなものです
JA overlay · on

Subtitle overlay on the player

Toggle Show on video and the translated captions render right on top of the YouTube player, synced to playback. Native YouTube captions are hidden while it's on.

AI summary with clickable timecodes

A concise summary of any YouTube video in your language — useful for long talks, lectures and podcasts. Every [mm:ss] marker is a button that seeks the player.

AllTranscripts
German

TL;DR. Ein anschaulicher Vortrag darüber, wie große Sprachmodelle Wissen darstellen und warum sich Training so gut skalieren lässt.

Wichtige Stellen

Einführung und Problemstellung.

Transformer-Architektur, anschaulich erklärt.

Warum Attention besser ist als RNNs.

Scaling Laws und die Grenzen der Methode.

Wo Modelle immer noch versagen.

AllTranscripts
Russian
🇺🇸
English
Original · MP3 128 kbps · 38.4 MB
🇪🇸
Spanish
Multi-language audio · 38.1 MB
🇧🇷
Portuguese
Multi-language audio · 38.0 MB
🇮🇳
Hindi
Multi-language audio · 39.2 MB
🇯🇵
Japanese
Preparing… 64%

Audio download (MP3)

Save the original audio track in any language the channel published on YouTube. Useful for podcasts, lectures and language learning. Limited to languages YouTube actually advertises for the video — we don't synthesize dubs.

Stop copy-pasting URLs into transcript sites. Get everything in one click.

Add to Chrome — Free

How it works

From "I can't understand this video" to "I just got the transcript and summary" in three steps.

  1. Install and sign in with Google

    Add AllTranscripts to Chrome and sign in with your Google account. Quota is tied to your account.

    AllTranscripts
    Sign in to use transcripts, summaries and audio downloads.
    Free tier · no credit card

  2. Open any YouTube video

    A panel appears next to the player with three tabs: Transcript, Summary, Audio. Pick your target language from the dropdown.

    AllTranscripts
    🇺🇸English
    🇪🇸Spanish
    🇧🇷Portuguese
    🇮🇳Hindi
    🇯🇵Japanese
    Pick a target language, then get the transcript.

  3. Read, listen or download

    Click "Get Transcript" or "Get Summary" — results arrive in seconds (cached videos are instant). Toggle the subtitle overlay or download the MP3.

    AllTranscripts
    French
    0:12Les grands modèles de langage sont, au fond, de très grandes fonctions.
    0:34On donne du texte et on obtient une distribution de probabilités sur le mot suivant.
    0:58C'est ainsi que les réseaux apprennent — par descente de gradient.
    1:21Chaque paramètre est un petit levier qui ajuste la prédiction.

10 popular target languages

Translate transcripts and summaries into any of these. Source language is auto-detected from the video.

  • English
  • Spanish
  • Hindi
  • Portuguese
  • Russian
  • Japanese
  • German
  • French
  • Korean
  • Italian

More languages on the roadmap — let us know which one you need.

Frequently asked questions

What does the AllTranscripts extension do?

It adds a panel to any YouTube watch page with three tabs: a translated transcript with clickable timecodes, an AI-generated summary in your language, and an audio download. Sign in with Google, pick a target language, click the action you want.

Does it dub the video into my language?

No. AllTranscripts does not synthesize voice-overs. The Audio tab lets you download tracks the channel actually published on YouTube (multi-language audio). For text we produce a translated transcript and an AI summary in your language.

Can I show translated subtitles on the YouTube player?

Yes. From the Transcript tab, toggle Show on video — translated captions render over the player synced to playback, and the native YouTube captions are hidden while it's on.

Can I export the transcript?

Yes — copy the transcript as plain text or as JSON (segments with start/duration). Useful for notes, research and translation pipelines.

Which languages are supported?

Ten popular target languages: English, Spanish, Hindi, Portuguese, Russian, Japanese, German, French, Korean and Italian. Source language is detected from the video.

Is AllTranscripts free? Do I need an account?

Free tier with a usage quota covering transcripts, summaries and audio downloads. You sign in with Google — quota is tied to your account.

Does it work on private or members-only videos?

AllTranscripts works on videos the backend can fetch from YouTube. Private and members-only videos are not supported in the current version.

Watch YouTube in your language — read, summarize, download.

Add AllTranscripts to Chrome and get a translated transcript, an AI summary and MP3 audio for any video in seconds. No copy-pasting, no separate website.

Add to Chrome — Free
  • Launching soon · be among the first
  • No credit card
  • Free tier with quota
  • Works on every public YouTube video