Tumblr via Ferryman Post Character Limit: 4,096 Characters
Last updated June 2026
Ferryman supports 4,096 characters per Tumblr post. This is Ferryman's current integration limit, not Tumblr's universal platform maximum. Available to all users. Threads, quote posts, and reposts are not supported or flattened.
How Tumblr's limit compares to other platforms
| Platform | Character limit | Native threading |
|---|---|---|
| Tumblr | 4,096 (Ferryman limit) | No |
| X | 280 | Yes |
| Bluesky | 300 | Yes |
| Threads | 500 | Yes |
| Mastodon | 500 | Yes |
| 3,000 | No | |
| 63,206 | No | |
| Substack | 10,000 | No |
| Discord | 2,000 | No |
| Slack | 4,000 | No |
| 800 | No | |
| Telegram | 4,096 | No |
The 4,096-character figure is Ferryman's integration limit for Tumblr, not a universal limit on Tumblr posts.
What happens when you go over 4,096 characters
Keep Tumblr content within Ferryman's 4,096-character integration limit. Longer content must be shortened before publishing through Ferryman; it is not automatically split into threads.
Tumblr media and threading limits
- Images per post: 30 at the adapter ceiling; individual workflows may allow fewer images
- Alt text on images: Supported
- Video: Native video supported, up to 100 MiB
- Native threading: No — long content must fit in one post
Cross-posting and the Tumblr character limit
Tumblr is a destination only, not a source. Publish supported original posts within Ferryman's 4,096-character limit. Threads, quote posts, and reposts are not supported or flattened.
Frequently asked questions
What is the Tumblr character limit through Ferryman?
Ferryman supports up to 4,096 characters per Tumblr post. This is an integration limit, not Tumblr's universal platform maximum.
Can I publish longer Tumblr posts through Ferryman?
Keep Tumblr content within Ferryman's 4,096-character integration limit. Longer content must be shortened before publishing through Ferryman; it is not automatically split into threads.
Which Tumblr post types and media are supported?
Original text, links, images, photosets, and native video are supported. The adapter supports up to 30 images; individual workflows may allow fewer. Native video has a 100 MiB ceiling. Threads, quote posts, and reposts are not supported or flattened.
Can Tumblr be my source platform?
Tumblr is a destination only, not a source. Publish supported original posts within Ferryman's 4,096-character limit. Threads, quote posts, and reposts are not supported or flattened.
Learn more about Tumblr
Post once, reach every platform — even with different character limits
Publish supported original posts to Tumblr within Ferryman's integration limits. Threads, quote posts, and reposts are not supported. Free to try.
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