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H.264 vs H.265 (HEVC): Codec Comparison

Last Updated: April 1, 2026

H.264 vs H.265 — compression efficiency, quality, compatibility, and encoding speed compared.

H.264 vs H.265 (HEVC)

FeatureH.264H.265 (HEVC)
CompressionGood✅ 50% better
QualityGood✅ Better at same bitrate
Encoding speed✅ Fast⚠️ 2-3x slower
Device support✅ Universal⚠️ Newer devices only
Licensing⚠️ Patented⚠️ Complex licensing
Verdict:H.264 for maximum compatibility. H.265 for 4K content where file size matters.

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Is this video tool free?

Yes, all video tools on AI-MP4.com are free to use without any subscription.

What video formats are supported?

We support MP4, MOV, AVI, MKV, WebM, and most common video formats.

How long can my video be?

We support videos up to 2GB or 2 hours in length.

Is my video stored on your servers?

No, videos are processed and immediately deleted. Your privacy is guaranteed.

Does processing happen in the cloud?

Yes, processing is done server-side for fast results on any device.

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