Sample HEIC 10MB File
HEIC — Apple's HEVC-based format
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Download 10MB HEIC10 MBTestFile-heic-10mb.heic
File details
| Format | HEIC |
| Extension | .heic |
| MIME type | image/heic |
| Size | 10 MB |
| Exact bytes | 10,485,760 |
| Filename | TestFile-heic-10mb.heic |
| Format version | HEIF / HEVC (HEIC brand) — ISO/IEC 23008-12 |
| Contents | ~9,000 × 6,750 px RGB synthetic gradient; HEVC compression; ISOBMFF container; no EXIF |
| Encoding | RGB 8-bit; HEVC (H.265) compression; 'heic' brand; ISOBMFF container |
What is a 10MB HEIC file useful for?
A 10 MB HEIC is representative of iPhone ProRAW captures or panoramic HEIC exports where resolution or quality settings are at maximum. Use it to test HEIC processing at the upper boundary of typical mobile uploads, to verify that your transcoding pipeline stays within memory limits when decoding a high-resolution HEVC stream, and to benchmark libheif decode time for capacity planning. It is also useful for testing Apple's iCloud Shared Albums or AirDrop integration code paths in iOS app test suites.
What's inside this file?
Generated with Pillow and pillow-heif. Approximately 9,000 × 6,750 pixels encoded as HEVC with the 'heic' brand in an ISOBMFF container. The uncompressed RGB raster is approximately 183 MB. libheif decodes the HEVC bitstream sequentially by CTU rows, keeping peak RAM usage well below the full uncompressed size. pillow-heif loads the decoded raster into a Pillow Image object — approximately 190 MB at this resolution.
Download via curl
curl -L "http://localhost:8000/files/heic/TestFile-heic-10mb.heic" \ -o TestFile-heic-10mb.heic
Need different parameters?
Generate a custom HEIC file with exact settings.