H.265 (HEVC) compresses video about 40% better than H.264 at the same visual quality. Re-encoding an existing H.264 MP4 to H.265 is one of the easiest ways to slash storage usage, especially for large libraries of videos.

Free MP4 to H.265 (HEVC) Converter Online

Re-encode your MP4 to H.265 HEVC — same quality, roughly half the file size.

Create a free account to claim 1000 tokens — enough for about 1000 minutes of 1080p H.264/H.265 or roughly 200 minutes of 1080p AV1 encoding.
Drag & drop a video file here or click to browse
Max file size: 200 MB · Max duration: 300s
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Need More Power?

You’ve tried our free online encoder — but if you need larger files, bulk jobs, or enterprise-grade throughput, Convertrilo has you covered. GPU-powered encoding, predictable pricing, and instant scaling when you need it most.

Frequently Asked Questions

How do I convert MP4 (H.264) to H.265 (HEVC) online?

Upload your MP4 (H.264) file using the tool above, make sure the output codec is set to H265 and the container to MP4, then click Convert. No software installation required — encoding runs on our GPU servers.

Is the MP4 (H.264) to H.265 (HEVC) converter free?

Yes. No sign-up is required for the free tool. You get up to 720p output and files up to 200 MB. Create a free account to unlock 1080p, larger files, and 1,000 free encoding minutes.

How long does it take to convert MP4 (H.264) to H.265 (HEVC)?

Encoding speed depends on file length and selected resolution. Most short clips (under 5 minutes) finish in under 60 seconds on our GPU infrastructure.

What is the difference between MP4 (H.264) and H.265 (HEVC)?

H.265 (HEVC) is a modern video codec with roughly 40% better compression than H.264 at equal visual quality. Converting to H.265 (HEVC) is ideal for 4K video, HDR content, and reducing storage requirements.

Will audio be preserved when I convert MP4 (H.264) to H.265 (HEVC)?

Yes. By default the tool re-encodes audio to AAC at 192 kbps for MP4/MKV/MOV, or Opus at 128 kbps for WebM. You can also choose to copy the original audio stream unchanged or strip it entirely using the Audio selector.