You can open a large file using a File or Blob, which do not store all the data in memory at once. Then you can read slices from it. That even works synchronous

You can open a large file using a File or Blob, which do not store all the data in memory at once. Then you can read slices from it. That even works synchronously, in Workers: https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync https://developer.mozilla.org/en-US/docs/Web/API/FileReaderS...