Step 1 / source
Add the source media
Source intake
Drop one media file here
Choose the GIF you want to publish or share as a video file.
GIF only1 file / 50 MB
Checking publication status before file selection...
TEMPORARY MEDIA WORKSPACE / GIF TO MP4
GIF to MP4
Convert an animated GIF into a widely playable H.264 MP4 with even frame dimensions and a selected quality profile.
Request-scoped temporary processingAdd one supported file up to 50 MB. Long or unusually large-frame media may be rejected before processing.No account required
Local API readinessMedia service ready
One bounded job runs per API worker by default.The processor required by this tool is available, and this worker can accept a temporary job.
1 file / 50 MB
Temporary server workspace
The selected bytes are sent only to the Nirmion media API for this request. Processing uses a private temporary workspace rather than permanent catalogue storage.
Request-scoped cleanup
Server-side source and result files are removed when the response stream closes. Re-downloads use the result Blob retained only in this browser tab.
Original stays unchanged
Nirmion writes a separately named result containing nirmion_tools and never overwrites the selected source file.
Know the product contract
What goes in, what changes, what comes back
Every media page documents the accepted source, the selected FFmpeg transformation, the output container, and the limits that can affect the job.
Prepare the source
Use a valid GIF under 60 seconds. Confirm the animation and loop timing before conversion.
Apply one operation
FFmpeg decodes the GIF animation, normalizes odd dimensions, and encodes its frames as H.264 video in a yuv420p MP4.
Receive a separate file
Check duration, first and last frames, and whether the destination loops MP4 automatically when needed.
Plain-language method
How GIF frames become MP4 video
MP4 is usually far more efficient than GIF, but H.264 is lossy and the result depends on the player for looping behavior.
- 01Choose valid source media
Use a valid GIF under 60 seconds. Confirm the animation and loop timing before conversion.
- 02Review the operation settings
Balanced suits most sharing. High retains more detail; Smallest applies stronger compression.
- 03Inspect and download the result
Check duration, first and last frames, and whether the destination loops MP4 automatically when needed.
Useful when
Practical jobs this tool handles
- Publish a lighter animation on a web page.
- Send a GIF through a video-oriented platform.
- Convert a large GIF into a more efficient review file.
Before processing
Check the source and output choices first
- Preview the full GIF before upload.
- Remember the output has no audio.
- Choose quality based on text and edge detail.
- Configure looping in the destination player if required.
Container and codec
Understand the output format
The result is a silent H.264 MP4. GIF transparency is composited during conversion and does not remain as an alpha channel.
Know the boundary
MP4 does not inherit GIF behavior everywhere
Autoplay and looping are controlled by the website or player, not stored as universal GIF-style behavior. Transparency is not preserved.
Quick answers
Questions before you process media
These answers describe the actual upload, FFmpeg processing, download, and temporary-retention contract.
Will the MP4 loop automatically?
That depends on the destination player or HTML settings; MP4 itself does not force universal looping.
Does the MP4 have audio?
No. GIF has no audio source, so the result is silent.
Will transparency remain?
No. The H.264 MP4 output does not carry GIF transparency.