Convert H.264 to H.265 (HEVC) via API

H.265 (HEVC) delivers the same visual quality as H.264 at roughly half the bitrate. Transcode your H.264 content to save storage and bandwidth costs.

Try it in your browser

Loading FFmpeg engine... (~31 MB)

Use the API

curl -X POST https://renderio.dev/v1/commands \
  -H "X-API-KEY: ffsk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
  "ffmpeg_command": "-i {in_video} -c:v libx265 -crf 28 -preset medium -c:a copy {out_video}",
  "input_files": {
    "in_video": "https://example.com/input.mp4"
  },
  "output_files": {
    "out_video": "output.mp4"
  }
}'

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Common Variations

High quality (CRF 23)

-i input.mp4 -c:v libx265 -crf 23 -preset slow -c:a copy output.mp4

Fast encode for batch processing

-i input.mp4 -c:v libx265 -crf 28 -preset fast -c:a copy output.mp4

10-bit color depth

-i input.mp4 -c:v libx265 -crf 28 -pix_fmt yuv420p10le -c:a copy output.mp4

With HDR tone mapping

-i input.mp4 -c:v libx265 -crf 28 -x265-params hdr-opt=1 -c:a copy output.mp4

Related Operations

Convert H.265 to H.264 via API | RenderIO Compress Video via API | RenderIO Convert MP4 to AV1 via API | RenderIO Convert MP4 to WebM via API | RenderIO

Need to process at scale?

Automate this with the RenderIO FFmpeg API. Process thousands of files programmatically or through no-code video automation.

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