Download video with automatically translated language using yt-dlp

[cronos111]

Hi,


Hello, I'd like to download a YouTube video with a Spanish audio track.
The video has an English track, and with automatic translation, the Spanish track is available.

With this code I can view all the data streams, but only the English language is displayed:

yt-dlp --list-formats --allow-unplayable-formats LINK

But on YouTube, I can see the Spanish audio using the "Automatic Translation" option.

Is it possible to download the Spanish audio stream?

The last time I used this program, I downloaded the audio and video separately with this code:

yt-dlp -f 140-1 --allow-unplayable-formats LINK
yt-dlp -f 137 --allow-unplayable-formats LINK

Is there any way to do it? Or is it better to use another program?
Thank you

[cholla]

If you upload the YouTube link I can test to see what I can get.

One of these can list with the languages.
The first is what yt-dlp has stock.
yt-dlp -F LINK

You need to install the js-runtimes node to use this but many times this gets more results.
yt-dlp -F --js-runtimes node LINK

I have not tried --allow-unplayable-formats but I plan to see what it does.

[cronos111]

If you upload the YouTube link I can test to see what I can get.

One of these can list with the languages.
The first is what yt-dlp has stock.
yt-dlp -F LINK

You need to install the js-runtimes node to use this but many times this gets more results.
yt-dlp -F --js-runtimes node LINK

I have not tried --allow-unplayable-formats but I plan to see what it does.

Thanks for the reply.

This might be a video: https://www.youtube.com/watch?v=uHseUigNZlw
I'm still only seeing the tracks in English, not the ones in Spanish.

I used the version from the link you provided: 2026.06.09

If you could tell me the exact command, I would be very grateful.
Thanks!

[cronos111]

Thanks for the reply.

This might be a video:

https://www.youtube.com/watch?v=uHseUigNZlw

I'm still only seeing the tracks in English, not the ones in Spanish.

I used the version from the link you provided: 2026.06.09

If you could tell me the exact command, I would be very grateful. Thanks!

[LZAA]

yt-dlp --js-runtimes xxx -F URL

[Obo]

The video has at least 6 versions with Spanish language track:

91-1   mp4   256x144     30    | ~  9.14MiB  170k m3u8  | avc1.4D400C         mp4a.40.5           [es-US]
92-1   mp4   426x240     30    | ~ 16.73MiB  310k m3u8  | avc1.4D4015         mp4a.40.5           [es-US]
93-1   mp4   640x360     30    | ~ 37.60MiB  698k m3u8  | avc1.4D401E         mp4a.40.2           [es-US]
94-1   mp4   854x480     30    | ~ 55.48MiB 1030k m3u8  | avc1.4D401F         mp4a.40.2           [es-US]
300-1  mp4   1280x720    60    | ~204.06MiB 3787k m3u8  | avc1.4D4020         mp4a.40.2           [es-US]
301-1  mp4   1920x1080   60    | ~356.45MiB 6615k m3u8  | avc1.64002A         mp4a.40.2           [es-US]

("es-US" is in my eyes kind of strange though).

[cholla]

yt-dlp --js-runtimes xxx -F URL

Can you use just --js-runtimes in the code ?

I'm running the node version of --js-runtimes & I have to use --js-runtimes node .

I used the version from the link you provided: 2026.06.09

Could you link me to the post ?

If you could tell me the exact command, I would be very grateful.

Before you use this code: I'm using the node version of --js-runtimes & I have to use --js-runtimes node.
The code you use may be as LZAA posted.
If you do not have any version of js-runtimes installed yt-dlp is not going to give you all the episodes in the list.
It may not be able to download some files.
You should see something like this in the command information: "[youtube] [jsc:node] Solving JS challenges using node" if js-runtimes node is installed.
The code I used:

 yt-dlp -F --js-runtimes node https://www.youtube.com/watch?v=uHseUigNZlw

Using LZAA type code:

 yt-dlp -F --js-runtimes https://www.youtube.com/watch?v=uHseUigNZlw

I found the exact versions OBO posted .

[LZAA]

--js-runtimes xxx

..

[cronos111]

Thank you so much for the replies!

cmd.exe like admin

C:\Users\XXX\Desktop>yt-dlp --js-runtimes xxx -F https://www.youtube.com/watch?v=uHseUigNZlw
WARNING: Ignoring unsupported JavaScript runtime(s): xxx. Supported runtimes: deno, node, bun, quickjs.
[youtube] Extracting URL: https://www.youtube.com/watch?v=uHseUigNZlw
[youtube] uHseUigNZlw: Downloading webpage
WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add  --js-runtimes RUNTIME[:PATH]  to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See  https://github.com/yt-dlp/yt-dlp/wiki/EJS  for details on installing one
[youtube] uHseUigNZlw: Downloading android vr player API JSON
[info] Available formats for uHseUigNZlw:
ID  EXT   RESOLUTION FPS CH │   FILESIZE   TBR PROTO │ VCODEC          VBR ACODEC      ABR ASR MORE INFO
─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
sb2 mhtml 48x27        0    │                  mhtml │ images                                  storyboard
sb1 mhtml 80x45        0    │                  mhtml │ images                                  storyboard
sb0 mhtml 160x90       0    │                  mhtml │ images                                  storyboard
139 m4a   audio only      2 │    2.63MiB   49k https │ audio only          mp4a.40.5   49k 22k [en-US] English (US) original (default), low, m4a_dash
249 webm  audio only      2 │    2.67MiB   50k https │ audio only          opus        50k 48k [en-US] English (US) original (default), low, webm_dash
140 m4a   audio only      2 │    6.98MiB  129k https │ audio only          mp4a.40.2  129k 44k [en-US] English (US) original (default), medium, m4a_dash
251 webm  audio only      2 │    7.38MiB  137k https │ audio only          opus       137k 48k [en-US] English (US) original (default), medium, webm_dash
160 mp4   256x144     30    │    3.93MiB   73k https │ avc1.4d400c     73k video only          144p, mp4_dash
278 webm  256x144     30    │    3.95MiB   73k https │ vp9             73k video only          144p, webm_dash
394 mp4   256x144     30    │    4.57MiB   85k https │ av01.0.00M.08   85k video only          144p, mp4_dash
133 mp4   426x240     30    │    8.42MiB  156k https │ avc1.4d4015    156k video only          240p, mp4_dash
242 webm  426x240     30    │    6.60MiB  122k https │ vp9            122k video only          240p, webm_dash
395 mp4   426x240     30    │    8.75MiB  162k https │ av01.0.00M.08  162k video only          240p, mp4_dash
134 mp4   640x360     30    │   15.70MiB  291k https │ avc1.4d401e    291k video only          360p, mp4_dash
18  mp4   640x360     30  2 │   35.53MiB  659k https │ avc1.42001E         mp4a.40.2       44k [en] 360p
243 webm  640x360     30    │   16.74MiB  310k https │ vp9            310k video only          360p, webm_dash
396 mp4   640x360     30    │   16.98MiB  315k https │ av01.0.01M.08  315k video only          360p, mp4_dash
135 mp4   854x480     30    │   25.31MiB  469k https │ avc1.4d401f    469k video only          480p, mp4_dash
244 webm  854x480     30    │   21.93MiB  407k https │ vp9            407k video only          480p, webm_dash
397 mp4   854x480     30    │   26.68MiB  495k https │ av01.0.04M.08  495k video only          480p, mp4_dash
298 mp4   1280x720    60    │  128.04MiB 2374k https │ avc1.4d4020   2374k video only          720p60, mp4_dash
302 webm  1280x720    60    │   81.54MiB 1512k https │ vp9           1512k video only          720p60, webm_dash
398 mp4   1280x720    60    │   71.53MiB 1326k https │ av01.0.08M.08 1326k video only          720p60, mp4_dash
299 mp4   1920x1080   60    │  263.31MiB 4883k https │ avc1.64002a   4883k video only          1080p60, mp4_dash
303 webm  1920x1080   60    │  159.97MiB 2966k https │ vp9           2966k video only          1080p60, webm_dash
399 mp4   1920x1080   60    │  113.99MiB 2114k https │ av01.0.09M.08 2114k video only          1080p60, mp4_dash

C:\Users\XXXX\Desktop> yt-dlp -F --js-runtimes node https://www.youtube.com/watch?v=uHseUigNZlw
[youtube] Extracting URL: https://www.youtube.com/watch?v=uHseUigNZlw
[youtube] uHseUigNZlw: Downloading webpage
WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add  --js-runtimes RUNTIME[:PATH]  to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See  https://github.com/yt-dlp/yt-dlp/wiki/EJS  for details on installing one
[youtube] uHseUigNZlw: Downloading android vr player API JSON
[info] Available formats for uHseUigNZlw:
ID  EXT   RESOLUTION FPS CH │   FILESIZE   TBR PROTO │ VCODEC          VBR ACODEC      ABR ASR MORE INFO
─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
sb2 mhtml 48x27        0    │                  mhtml │ images                                  storyboard
sb1 mhtml 80x45        0    │                  mhtml │ images                                  storyboard
sb0 mhtml 160x90       0    │                  mhtml │ images                                  storyboard
139 m4a   audio only      2 │    2.63MiB   49k https │ audio only          mp4a.40.5   49k 22k [en-US] English (US) original (default), low, m4a_dash
249 webm  audio only      2 │    2.67MiB   50k https │ audio only          opus        50k 48k [en-US] English (US) original (default), low, webm_dash
140 m4a   audio only      2 │    6.98MiB  129k https │ audio only          mp4a.40.2  129k 44k [en-US] English (US) original (default), medium, m4a_dash
251 webm  audio only      2 │    7.38MiB  137k https │ audio only          opus       137k 48k [en-US] English (US) original (default), medium, webm_dash
160 mp4   256x144     30    │    3.93MiB   73k https │ avc1.4d400c     73k video only          144p, mp4_dash
278 webm  256x144     30    │    3.95MiB   73k https │ vp9             73k video only          144p, webm_dash
394 mp4   256x144     30    │    4.57MiB   85k https │ av01.0.00M.08   85k video only          144p, mp4_dash
133 mp4   426x240     30    │    8.42MiB  156k https │ avc1.4d4015    156k video only          240p, mp4_dash
242 webm  426x240     30    │    6.60MiB  122k https │ vp9            122k video only          240p, webm_dash
395 mp4   426x240     30    │    8.75MiB  162k https │ av01.0.00M.08  162k video only          240p, mp4_dash
134 mp4   640x360     30    │   15.70MiB  291k https │ avc1.4d401e    291k video only          360p, mp4_dash
18  mp4   640x360     30  2 │   35.53MiB  659k https │ avc1.42001E         mp4a.40.2       44k [en] 360p
243 webm  640x360     30    │   16.74MiB  310k https │ vp9            310k video only          360p, webm_dash
396 mp4   640x360     30    │   16.98MiB  315k https │ av01.0.01M.08  315k video only          360p, mp4_dash
135 mp4   854x480     30    │   25.31MiB  469k https │ avc1.4d401f    469k video only          480p, mp4_dash
244 webm  854x480     30    │   21.93MiB  407k https │ vp9            407k video only          480p, webm_dash
397 mp4   854x480     30    │   26.68MiB  495k https │ av01.0.04M.08  495k video only          480p, mp4_dash
298 mp4   1280x720    60    │  128.04MiB 2374k https │ avc1.4d4020   2374k video only          720p60, mp4_dash
302 webm  1280x720    60    │   81.54MiB 1512k https │ vp9           1512k video only          720p60, webm_dash
398 mp4   1280x720    60    │   71.53MiB 1326k https │ av01.0.08M.08 1326k video only          720p60, mp4_dash
299 mp4   1920x1080   60    │  263.31MiB 4883k https │ avc1.64002a   4883k video only          1080p60, mp4_dash
303 webm  1920x1080   60    │  159.97MiB 2966k https │ vp9           2966k video only          1080p60, webm_dash
399 mp4   1920x1080   60    │  113.99MiB 2114k https │ av01.0.09M.08 2114k video only          1080p60, mp4_dash

yt-dlp.exe 2026.06.09 (June 9, 2026) from here Win-64b: https://www.videohelp.com/software/yt-dlp
https://www.videohelp.com/download/yt-dlp.exe

¿How do I install JavaScript runtime?
¿Are you referring to this? https://www.java.com/es/download/

[LZAA]

'yt-dlp -h'

[Obo]

Just install Deno like suggested in their docs; if yt-dlp can find it in the PATH it will be used automatically.

https://docs.deno.com/runtime/getting_started/installation/

[cholla]

The js-runtime also depends on the Windows OS you are using.
What OS are you using ?

I'm using windows 7 32-bit so I require the node version.
From the link Obo posted:

NOTE: Deno requires Windows 10 version 1709, or Windows Server 2016 version 1709 and up

If your OS falls in this category then use Deno.
If it doesn't I will find the link for node.