✳ VALIDATOR · TUMBLR
Video validator for Tumblr
Pick a video file. Koldflux reads metadata locally and reports PASS / WARNING / FAIL / UNKNOWN against Tumblr. Nothing uploaded.
Extension and MIME type are labels, not proof of the container. Dimensions and duration come from this browser's media reader. Files and measurements are not sent anywhere.
What this checks
- Container compatibility (does Tumblr accept this extension)
- File size vs. Tumblr max
- Aspect ratio vs. Tumblr recommended
- Duration vs. Tumblr max
Convert a failing file in one click: /tools/convert
Automate this in Koldflux