1. Blob constructing

    Construct Blobs (binary large objects) either using the BlobBuilder API (deprecated) or the Blob constructor.

  2. Blob URLs

    Method of creating URL handles to the specified File or Blob object.

  3. FileReader API

    Method of reading the contents of a File or Blob object into memory

  4. View Transitions API (single-document)

    Provides a mechanism for easily creating animated transitions between different DOM states, while also updating the DOM contents in a single step. This API is specific to single-document transitions, support for same-origin cross-document transitions is [being planned](https://github.com/WICG/view-transitions/blob/main/cross-doc-explainer.md).

  5. blobevent api

  6. blobevent api: `blobevent()` constructor

  7. blobevent api: data

  8. blobevent api: timecode

  9. blob api: `arraybuffer()`

  10. blob api: `blob()` constructor

  11. blob api: size

  12. blob api: `slice()`

  13. blob api: `stream()`

  14. blob api: `text()`

  15. blob api: type

  16. credentialscontainer api: create: `publickey` option: `create()` extensions: `largeblob` extension

  17. credentialscontainer api: get: `publickey` option: `get()` extensions: `largeblob` extension

  18. fetch api: support for blob: and data:

  19. fontdata api: blob

  20. htmlcanvaselement api: toblob

  21. htmlcanvaselement api: toblob: `quality` parameter

  22. htmlcanvaselement api: toblob: `type` parameter supports `"image/webp"`

  23. offscreencanvas api: converttoblob

  24. offscreencanvas api: converttoblob: `option.type` parameter supports `"image/webp"`

  25. pushmessagedata api: blob

  26. request api: blob

  27. response api: blob

  28. rtcdatachannel api: binarytype: `blob` value

  29. xmlhttprequest api: responsetype: blob_value

  30. xmlhttprequest api: send: blob as parameter to send()