1 MB GIF sample file
A GIF file of exactly 1,048,576 bytes. It is a valid Graphics Interchange Format file, generated for this site and checked with an independent parser.
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sample-gif-1mb.gif
1 MB1,048,576 bytes
Download 1 MB GIF
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- Type
- image/gif
- SHA-256
371990c1b085b90928670c474b8404ff2475748447e677abac7afe5c8cfe3da8- Direct URL
https://sampletestfiles.com/downloads/gif/sample-gif-1mb.gif
What is in this file
A looping 480 × 360 animation of 23 LZW-compressed frames; the last frame repaints only the top of the canvas. 1,397 bytes of GIF comment extension bring the file to the exact size.
| Dimensions | 480 × 360 px |
|---|---|
| Frames | 23 |
| Frame delay | 80 ms |
| Loop | Forever |
| Colours | 256 (global colour table) |
| Version | GIF89a |
First bytes of the file
The first 64 bytes of sample-gif-1mb.gif as a hex dump: offset, bytes, then the same bytes as text. The GIF signature is 47 49 46 38 39 61.
00000000 47 49 46 38 39 61 e0 01 68 01 f7 00 00 00 00 00 |GIF89a..h.......|
00000010 00 00 33 00 00 66 00 00 99 00 00 cc 00 00 ff 00 |..3..f..........|
00000020 33 00 00 33 33 00 33 66 00 33 99 00 33 cc 00 33 |3..33.3f.3..3..3|
00000030 ff 00 66 00 00 66 33 00 66 66 00 66 99 00 66 cc |..f..f3.ff.f..f.|Preview
Displays the file in your browser.
Where 1 MB matters
A 1,048,576-byte file: exactly the default upload limit of nginx, Spring Boot and Next.js. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| nginx | 1 MB by default (client_max_body_size) | A multipart upload of this file exceeds the limit by the size of the form boundaries. |
| Spring Boot multipart | 1 MB per file by default (max-file-size) | A file of exactly 1 MB is at the limit. |
| Next.js API routes and Server Actions | 1 MB by default | Larger bodies need the size limit raised in configuration. |
| Cloud Firestore documents | 1 MiB (1,048,576 bytes) | The same number of bytes as this file. |
| Apache Kafka messages | About 1 MB by default | Brokers reject larger records unless message.max.bytes is raised. |
Use this file for
- Download tests on mobile connections
- Checking frame-count and duration limits
- Testing avatar and reaction uploads
Testing notes for GIF
- Animated GIFs are large for what they show; a few seconds can reach several megabytes, so they hit size limits early.
- Many resizing libraries silently keep only the first frame of an animated GIF.
Technical details
| File name | sample-gif-1mb.gif |
|---|---|
| Format | GIF (Graphics Interchange Format) |
| Extension | .gif |
| MIME type | image/gif |
| Size | 1,048,576 bytes (1 MB) |
| Kind | Binary |
| Signature | 47 49 46 38 39 61 |
| SHA-256 | 371990c1b085b90928670c474b8404ff2475748447e677abac7afe5c8cfe3da8 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Images |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-gif-1mb.gif 'https://sampletestfiles.com/downloads/gif/sample-gif-1mb.gif'
sha256sum sample-gif-1mb.gif # Linux
shasum -a 256 sample-gif-1mb.gif # macOSOn Windows, run Get-FileHash sample-gif-1mb.gif -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 1 MB?
- Yes. It is 1,048,576 bytes, which is 1 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 1 MB GIF file?
- A looping 480 × 360 animation of 23 LZW-compressed frames; the last frame repaints only the top of the canvas. 1,397 bytes of GIF comment extension bring the file to the exact size.
- Are the sample GIFs animated?
- Yes. They loop forever at about 12 frames per second. The frame count for each size is shown on its download page.