WebM to MP4 Converter
Pricing
from $39.00 / 1,000 video converteds
Go to Apify Store
WebM to MP4 Converter
Convert WebM video files to MP4 format using FFmpeg. Fast, reliable transcoding with support for batch URLs and custom output settings.
WebM to MP4 Converter
Pricing
from $39.00 / 1,000 video converteds
Convert WebM video files to MP4 format using FFmpeg. Fast, reliable transcoding with support for batch URLs and custom output settings.
Source URL
sourceUrl
Required
URL of the source WebM video, or null if input was from KV Store
Source KV Key
sourceKvKey
Required
Key-Value Store key of the source video, or null if input was a URL
Output KV Key
outputKvKey
Required
Key-Value Store key where the converted MP4 is stored
Output URL
outputUrl
Required
Direct download URL for the converted MP4 file from the Apify Key-Value Store
Input Format
inputFormat
Optional
Detected container format of the input file (e.g., 'webm', 'matroska')
Input Codec
inputCodec
Optional
Detected video codec of the input file (e.g., 'vp8', 'vp9', 'av1')
Input Duration (seconds)
inputDurationSeconds
Optional
Duration of the input video in seconds
Input Width
inputWidth
Optional
Width of the input video in pixels
Input Height
inputHeight
Optional
Height of the input video in pixels
Input Size (bytes)
inputSizeBytes
Optional
File size of the input video in bytes
Output Duration (seconds)
outputDurationSeconds
Optional
Duration of the converted MP4 in seconds
Output Width
outputWidth
Optional
Width of the converted MP4 in pixels
Output Height
outputHeight
Optional
Height of the converted MP4 in pixels
Output Size (bytes)
outputSizeBytes
Optional
File size of the converted MP4 in bytes
Output Video Codec
outputVideoCodec
Optional
Video codec used in the output MP4 (h264 or hevc)
Output Audio Codec
outputAudioCodec
Optional
Audio codec used in the output MP4 (aac, mp3, or none)
Output FPS
outputFps
Optional
Frame rate of the converted MP4
Compression Ratio
compressionRatio
Optional
Output size / input size. Values < 1 indicate size reduction. Values > 1 indicate size increase (can happen with lossless or very short clips).
Conversion Time (ms)
conversionTimeMs
Optional
Total time taken to download and convert this video in milliseconds
Converted At
convertedAt
Required
ISO 8601 timestamp when this video was converted
Errors
errors
Required
List of error codes if conversion failed. Empty array on success.
