fshy

fshy / Storage

Trello card attachments

trello.com · Storage · 1 record · JSON

Trello card attachments Storage

caveatinstitutionno cardRper-object-cap

trello.com · paas · storage/trello-card-attachments · JSON · compare

Free tier10 MB per attachment on Free, 250 MB on Standard — and explicitly 'there is no total limit for storage, just a per-file limit'
unit unlimited; metered on stored-bytes
Pricenone stated
Per-object cap10 MB/file (10000000 bytes)
Retentionnot stated
Egressfree direct download links, Atlassian CDN; no egress metering published
Identityinstitution derived from the record's prose, not from an identity field, and no signup was executed: ual copy within Trello'); Atlassian has deprecated/changed API auth (key+token still works) but attachments have been stable for a decade unlimited cards x 10 MB x unlimited boards x
Limits
  • per-object-cap 10 MB/file source
10 MB/file on Free; per-board attachment ceiling exists in the API response model (limits.attachments.perBoard warnAt 32400 / disableAt 36000) — i.e. ~32k attachments/board before hard stop; 10 MB is small for bulk data
Bindingper-object-cap the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota
Interfacerest, rclone rest
Toolingdocumented Trello REST API: POST /1/cards/{id}/attachments (multipart file or url), plus GET /1/cards/{id}/attachments; py-trello and trello-rclone-style wrappers exist
Composes withunlimited cards x 10 MB x unlimited boards x unlimited free Workspaces (10 members each). This is genuinely 'per-record unlimited': no bucket cap, only a per-file cap. 500 GB = 51,200 attachments
Reliabilityattachments are real copies inside Trello ('Attachments from your computer create an actual copy within Trello'); Atlassian has deprecated/changed API auth (key+token still works) but attachments have been stable for a decade
Notes10 MB per attachment on Free, 250 MB on Standard — and explicitly 'there is no total limit for storage, just a per-file limit'
Evidence rungreported One page read moves it to documented.
Checked2026-10-21 (inherited); stale on 2026-11-04
Parsed numbers
  • $.limits[0].value limit:per-object-cap 10.0 MB
Evidence (3)
datesourcewhat it proved
2026-10-21support.atlassian.com/trello/docs/which-trello-plan-is-best-'10MB limit for each attachment (there is no total limit for storage, just a per-file limit)' and '250MB limit for each attachment' on Standard
2026-10-21developer.atlassian.com/cloud/trello/rest/api-group-cards/#aPOST attachments, live API reference
2026-10-21support.atlassian.com/trello/docs/adding-attachments-to-card'Attachments from your computer create an actual copy within Trello'
Unknown or withheld values (4)
  • $.free_tier.notes process
  • $.per_object_cap.notes not-extracted
  • $.retention.notes not-extracted
  • $.retention.stated not-extracted