Compress videos for Tumblr to fit the 100MB limit. Tumblr's video player works best with MP4 files in standard resolutions.
Percentage is applied to the original file size.
Your videos are compressed right in your browser - nothing gets uploaded to our servers or anywhere else. This means faster processing, complete privacy, and no file size limits from upload restrictions.
Tumblr has a file size limit of 100MB (Video posts). To ensure successful uploads, we recommend compressing your video to slightly below this limit. Our tool can help you target the exact file size you need.
Tumblr works best with MP4 format using H.264 codec. This combination ensures compatibility across all devices and smooth playback.
The most common reason is file size exceeding 100MB (Video posts). Other issues include unsupported formats or resolutions. Compress your video and ensure it's in MP4 format before uploading.
Tumblr may apply its own compression after upload, which can reduce quality. By compressing your video beforehand with our tool, you have full control over the quality settings and can often achieve better results than automatic platform compression.