PostMicroTools
Utility
EXR sequence checker
Drag a folder or pick the files of an image sequence. The tool detects missing frames, inconsistent padding, duplicates and outlier sizes. Everything happens in your browser: nothing is uploaded.
Drag your folder or files here
or click to select · EXR, DPX, PNG, TIF, JPG… · only names and sizes are read
How it works
Files are grouped by prefix and extension, and the last run of digits is read as the frame number. From that the expected range is computed and gaps are found. The analysis is of filesystem metadata (name and size); the image content is never decoded.
Why does padding matter?
Mixing shot.001.exr and shot.0001.exr in the same sequence breaks many readers (Nuke, Flame, ffmpeg). The tool warns about inconsistent zero-padding.
What is an “outlier size”?
A frame whose weight is far from the sequence median. It often indicates a black, half-rendered or corrupt frame. It's a hint, not a certainty.