Discord raises the default upload limit to 20 MiB for bots and webhooks

What this means for you

Discord now lets bots and posting tools send bigger files: up to 20 MiB each, twice what was allowed before. If your scheduler refused a file for being too big, try again.

The details

• Change: default upload limit from 10 MiB to 20 MiB for users, bots, webhooks and interaction responses.
• Per file: "The file upload size limit applies to each file in a request." Per-file checking for apps started on April 3, 2025 (our entry).
• Request size: the Create Message reference says "The maximum request size when sending a message is 25 MiB", so several large files in one message can still fail.
• Higher limits: may be higher with Nitro or the server's Boost tier; interactions report the effective value in attachment_size_limit.
• History: webhooks and interaction responses dropped from 25 MiB to 10 MiB on January 16, 2025 (our entry).

What to do next

• Business owners: Nothing.
• Marketers and agencies: You can now post files up to 20 MiB to Discord through your tools.
• Developers: Update client-side checks to 20 MiB per file and 25 MiB per request, and prefer attachment_size_limit when handling interactions.