Tumblr is missing some basic creator utilities. We built them. Use them all you want — they're free.
Tumblr silently fails when you exceed its character limits. Check posts, tags, asks, and bios before you hit publish.
An oversized GIF posts as a still image with no warning. Check size, dimensions, and frame count against Tumblr's limits first.
Tumblr only indexes your first 5 tags. See any public blog's most-used tags, average tags per post, and which tags never get indexed.
Measure any public blog's posting rhythm — posts per week, typical gap between posts, and the hour and day it posts most.
Tumblr never tells you when your queue runs dry. Get the exact date — and how many posts you need to reach any date.
Check any image against Tumblr's real limits — including the CMYK colour mode that makes uploads fail silently — then resize it.
Browse the latest posts from any public Tumblr blog without logging in. Titles, dates, tags, and previews for the 20 most recent posts.
Tumblr only shows 'X days ago'. Paste any post URL to get the exact publish date and time — accurate to the second.
More tools coming soon. Have a request? Tell us what you'd use.
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