Youtube Format IDs
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Last updated: April 2021
Also known as itag or format codes and way back they could be specified with the fmt parameter (e.g. &fmt=22
).
Depending on the age and/or popularity of the video, not all formats will be available.
DASH video
Resolution | AV1 HFR High | AV1 HFR | AV1 | VP9.2 HDR HFR | VP9 HFR | VP9 | H.264 HFR | H.264 |
---|---|---|---|---|---|---|---|---|
MP4 | MP4 | MP4 | WebM | WebM | WebM | MP4 | MP4 | |
4320p | 402/571 | 272 | ||||||
2160p | 701 | 401 | 337 | 315 | (313) | (305) | (266) | |
1440p | 700 | 400 | 336 | 308 | (271) | (304) | (264) | |
1080p | 699 | 399 | 335 | 303 | (248) | 299 | (137) | |
720p | 698 | 398 | 334 | 302 | 247 | 298 | 136 | |
480p | 697 | 397 | 333 | 244 | 135 | |||
360p | 696 | 396 | 332 | 243 | 134 | |||
240p | 695 | 395 | 331 | 242 | 133 | |||
144p | 694 | 394 | 330 | 278 | 160 |
- HFR stands for "High Framerate", which means up to 60 FPS, whereas non-HFR is limited to 30 FPS
- Non-HFR 1080p+ H.264 and VP9 variants are not provided for HFR videos anymore
- Same IDs are reused for 360° videos
- 1440p+ H.264 variants are only provided for 360° videos anymore
- At the moment, AV1 variants are only provided for popular videos
- All AV1 variants can be HDR (no separate non-HDR AV1 variants are offered)
- AV1 HFR High: High refers to the bitrate. These variants have ~3-4 times the bitrate of their normal counterparts. Additional side effect is providing AV1 HFR variants for low resolutions (<=480p). These variants are rare even among videos with AV1 variants. Found on this video.
- AV1 HFR 4320p: Format 571 has roughly 50% higher bitrate than 402. Sometimes only one of them is offered, sometimes both. Can be seen on this video.
DASH audio
Code | Container | Audio Codec | Audio Bitrate | Channels | Still offered? |
---|---|---|---|---|---|
139 | MP4 | AAC (HE v1) | 48 Kbps | Stereo (2) | Rarely, YT Music |
140 | MP4 | AAC (LC) | 128 Kbps | Stereo (2) | Yes, YT Music |
(141) | MP4 | AAC (LC) | 256 Kbps | Stereo (2) | No, YT Music* |
249 | WebM | Opus | (VBR) ~50 Kbps | Stereo (2) | Yes |
250 | WebM | Opus | (VBR) ~70 Kbps | Stereo (2) | Yes |
251 | WebM | Opus | (VBR) <=160 Kbps | Stereo (2) | Yes |
256 | MP4 | AAC (HE v1) | 192 Kbps | Surround (5.1) | Rarely |
258 | MP4 | AAC (LC) | 384 Kbps | Surround (5.1) | Rarely |
327 | MP4 | AAC (LC) | 256 Kbps | Surround (5.1) | ?* |
338 | WebM | Opus | (VBR) ~480 Kbps (?) | Quadraphonic (4) | ?* |
- Surround audio can be found on some demo videos
- YT Music: These formats are offered on Youtube Music. Format 141 is only available to Premium users with High Quality option
- Format 327, 338: These have been found on this Stereo 3D video
Legacy (non-DASH)
Code | Container | Video Codec | Video Res. | Audio Codec | Audio Bitrate | Channels | Still offered? |
---|---|---|---|---|---|---|---|
18 | MP4 | H.264 (Baseline, L3.0) | 360p | AAC (LC) | 96 Kbps | Stereo (2) | Yes, GDrive |
(59) | MP4 | H.264 (Main, L3.1) | 480p | AAC (LC) | 128 Kbps | Stereo (2) | No, GDrive |
22 | MP4 | H.264 (High, L3.1) | 720p | AAC (LC) | 192 Kbps | Stereo (2) | Mostly*, GDrive |
(37) | MP4 | H.264 (High, L4.0) | 1080p | AAC (LC) | 128 Kbps | Stereo (2) | No, GDrive |
- Always limited to 30 FPS
- GDrive: These formats are offered for Google Drive video previews. Note that the video player on GDrive displays incorrect codecs on rightclick -> stats
- Format 22: Available for most videos, except music and music videos (not limited to official music channels!)
Livestreams (non-DASH)
Code | Container | Video Codec | Video Res. | Audio Codec | Audio Bitrate | Still offered? |
---|---|---|---|---|---|---|
91 | MPEG-TS (HLS) | H.264 (Baseline, L1.1) | 144p | AAC (HE v1) | 48 Kbps | Yes |
92 | MPEG-TS (HLS) | H.264 (Main, L2.1) | 240p | AAC (HE v1) | 48 Kbps | Yes |
93 | MPEG-TS (HLS) | H.264 (Main, L3.0) | 360p | AAC (LC) | 128 Kbps | Yes |
94 | MPEG-TS (HLS) | H.264 (Main, L3.1) | 480p | AAC (LC) | 128 Kbps | Yes |
95 | MPEG-TS (HLS) | H.264 (Main, L3.1) | 720p | AAC (LC) | 256 Kbps | Yes |
96 | MPEG-TS (HLS) | H.264 (High, L4.0) | 1080p | AAC (LC) | 256 Kbps | Yes |
300 | MPEG-TS (HLS) | H.264 (Main, L3.2) | HFR 720p | AAC (LC) | 128 Kbps | Yes |
301 | MPEG-TS (HLS) | H.264 (High, L4.2) | HFR 1080p | AAC (LC) | 128 Kbps | Yes |
- Non-HFR variants are limited to 30 FPS, HFR to 60 FPS
- Non-HFR variants for 720p and 1080p may not be offered if HFR is available
- Livestreams are also offered through DASH video (H.264, VP9) and DASH audio (AAC) streams
Template youtube-dl formats
For archiving videos: Only choose combinations that fit WebM (VP9+Opus) or MP4 (H.264+AAC)
bestvideo[ext=webm]+251/bestvideo[ext=mp4]+(258/256/140)/bestvideo[ext=webm]+(250/249)/best
For archiving audio: Choose any format that's best
AAC Surround 384 / Opus 160 / AAC 192 / AAC Surround 192 / AAC 128 / Opus 70 / AAC 96 / Opus 50 / AAC 48
258/251/22/256/140/250/18/249/139
For streaming videos: Allow any combination
bestvideo+bestaudio/best
youtube-dl usage example
Archive videos
youtube-dl --download-archive youtube-dl.list --ignore-errors --write-info-json --add-metadata --write-sub --sub-lang en,de,ja --write-thumbnail --embed-subs -f "<format>" "<URL>"
Archive audio
youtube-dl --download-archive youtube-dl.list --ignore-errors --write-info-json --add-metadata --write-sub --sub-lang en,de,ja --write-thumbnail --embed-thumbnail --extract-audio -f "<format>" "<URL>"
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