Blank Files

Binary files for upload testing

Use these minimal valid binary files to test upload validation, MIME handling, media processing, and parser edge cases.

High-intent formats

.jpg .jpeg .png .webp .avif .gif .heic .pdf .docx .xlsx .pptx .mp3 .wav .aac .ogg .mp4 .mov .avi .webm .psd .ai .fig

Browse by category

3D

.3ds .dae .fbx .glb .obj .stl

3D editing

.blend .c4d

Audio

.aac .aiff .amr .flac .m4a .mid .midi .mp3 .ogg .opus .wav .wma

Audio editing

.logicx .sesx

Document text

.docx .epub .odt .pdf .rtf .pages

Document spreadsheet

.ods .xlsx .xls .xlsm

Document presentation

.odp .pptx

Image

.avif .bmp .dds .dib .emf .exif .gif .heic .heif .ico .j2c .jfif

Image editing

.ai .psd .psb .fig

Video

.3gp .avi .m4v .mkv .mpeg .mpg .wmv .mxf .flv .h265 .ts .m2ts

Video editing

.aep .prproj

Planned next binary formats

We prioritize formats based on upload-testing demand and developer workflows.

.mkv .3gp .mpeg .mpg .m4a .opus .mid .midi .epub .mobi

FAQ

What is a minimal valid binary file?

A file that is as small as possible while still being valid for its format and openable by compatible software.

Can I use these files for upload testing?

Yes. They are designed for upload validation, MIME checks, parser testing, and ingestion pipeline edge cases.

Where do these files come from?

The canonical catalog is maintained in filearchitect/blank-files.