Tumblr Community Multi-Reblog by NullGirl

Tumblr Community Multi-Reblog makes it easier to share a Tumblr post with several Communities.

Choose multiple Communities—or select them all—then approve the batch once. The extension processes each Community separately in a background Tumblr tab, verifies the destination before posting, and displays progress from the toolbar.

Features include:

Select multiple Tumblr Communities

Select All and Clear All controls

One confirmation for the complete batch

Background processing while you continue browsing

Automatic retries for failed Communities

Per-Community success, retry, and failure tracking

Protection against duplicate destination posting

Clear progress badges and completion notifications

Responsive, readable controls integrated into Tumblr

The extension uses your existing Tumblr session and Tumblr’s standard reblog interface. It does not collect analytics or transmit personal information to the developer or third-party services. Batch results are stored locally in your browser.

Tumblr must remain open and signed in while a batch is running. Please follow Tumblr’s policies and each Community’s posting rules.