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cobalt api

this directory includes the source code for cobalt api. it's made with express.js and love!

running your own instance

if you want to run your own instance for whatever purpose, follow this guide. we recommend to use docker compose unless you intend to run cobalt for developing/debugging purposes.

accessing the api

there is currently no publicly available pre-hosted api. we recommend deploying your own instance if you wish to use the cobalt api.

you can read the api documentation here.

Warning

the v7 public api (/api/json) will be shut down on november 11th, 2024. you can access documentation for it here.

supported services

this list is not final and keeps expanding over time. if support for a service you want is missing, create an issue (or a pull request 👀).

service video + audio only audio only video metadata rich file names
bilibili ✅ ✅ ✅ ➖ ➖
bluesky ✅ ✅ ✅ ➖ ➖
dailymotion ✅ ✅ ✅ ✅ ✅
instagram ✅ ✅ ✅ ➖ ➖
facebook ✅ ❌ ✅ ➖ ➖
loom ✅ ❌ ✅ ✅ ➖
ok.ru ✅ ❌ ✅ ✅ ✅
pinterest ✅ ✅ ✅ ➖ ➖
reddit ✅ ✅ ✅ ❌ ❌
rutube ✅ ✅ ✅ ✅ ✅
snapchat ✅ ✅ ✅ ➖ ➖
soundcloud ➖ ✅ ➖ ✅ ✅
streamable ✅ ✅ ✅ ➖ ➖
tiktok ✅ ✅ ✅ ❌ ❌
tumblr ✅ ✅ ✅ ➖ ➖
twitch clips ✅ ✅ ✅ ✅ ✅
twitter/x ✅ ✅ ✅ ➖ ➖
vimeo ✅ ✅ ✅ ✅ ✅
vk videos & clips ✅ ❌ ✅ ✅ ✅
youtube ✅ ✅ ✅ ✅ ✅
emoji meaning
✅ supported
➖ impossible/unreasonable
❌ not supported

additional notes or features (per service)

service notes or features
instagram supports reels, photos, and videos. lets you pick what to save from multi-media posts.
facebook supports public accessible videos content only.
pinterest supports photos, gifs, videos and stories.
reddit supports gifs and videos.
snapchat supports spotlights and stories. lets you pick what to save from stories.
rutube supports yappy & private links.
soundcloud supports private links.
tiktok supports videos with or without watermark, images from slideshow without watermark, and full (original) audios.
twitter/x lets you pick what to save from multi-media posts. may not be 100% reliable due to current management.
vimeo audio downloads are only available for dash.
youtube supports videos, music, and shorts. 8K, 4K, HDR, VR, and high FPS videos. rich metadata & dubs. h264/av1/vp9 codecs.

license

cobalt api code is licensed under AGPL-3.0.

this license allows you to modify, distribute and use the code for any purpose as long as you:

  • give appropriate credit to the original repo when using or modifying any parts of the code,
  • provide a link to the license and indicate if changes to the code were made, and
  • release the code under the same license

acknowledgements

ffmpeg

cobalt heavily relies on ffmpeg for converting and merging media files. it's an absolutely amazing piece of software offered for anyone for free, yet doesn't receive as much credit as it should.

you can support ffmpeg here!

ffmpeg-static

we use ffmpeg-static to get binaries for ffmpeg depending on the platform.

you can support the developer via various methods listed on their github page! (linked above)

youtube.js

cobalt relies on youtube.js for interacting with the innertube api, it wouldn't have been possible without it.

you can support the developer via various methods listed on their github page! (linked above)

many others

cobalt also depends on:

  • content-disposition-header to simplify the provision of content-disposition headers.
  • cors to manage cross-origin resource sharing within expressjs.
  • dotenv to load environment variables from the .env file.
  • esbuild to minify the frontend files.
  • express as the backbone of cobalt servers.
  • express-rate-limit to rate limit api endpoints.
  • hls-parser to parse m3u8 playlists for certain services.
  • ipaddr.js to parse ip addresses (for rate limiting).
  • nanoid to generate unique (temporary) identifiers for each requested stream.
  • node-cache to cache stream info in server ram for a limited amount of time.
  • psl as the domain name parser.
  • set-cookie-parser to parse cookies that cobalt receives from certain services.
  • undici for making http requests.
  • url-pattern to match provided links with supported patterns.

...and many other packages that these packages rely on.