How big is each chunk, and how many chunks can a file have?

Q: How big is each chunk, and how many chunks can a file have?

Chunk size : 16 MiB (16,777,216 bytes). Every chunk is exactly that size except the last , which is the remainder. Chunk i covers bytes i × chunk_size to (i + 1) × chunk_size − 1 . Chunks per file : up to 1,000. A file under 16 MiB is one chunk . The start response tells you chunk_size and chunk_count , so read them rather than hard-coding. Learn more Uploads Start an upload

FAQUpdated November 2, 2026

Chunk size: 16 MiB (16,777,216 bytes). Every chunk is exactly that size except the last, which is the remainder.
Chunk i covers bytes i × chunk_size to (i + 1) × chunk_size − 1.
Chunks per file: up to 1,000.
A file under 16 MiB is one chunk.

The start response tells you chunk_size and chunk_count, so read them rather than hard-coding.