Convert HEVC to H.264 Online — No Upload, No Watermark
HEVC (H.265) is half the file size of H.264 but unsupported on Windows 10 without a paid codec, in Chrome, on older Macs, and on most editing timelines. Converting to H.264 restores compatibility.
Drag & drop your video here, or click to browse
Max file size: ~2 GB (memory permitting)
Why convert HEVC to H.264 here?
- iPhone HEVC clips often fail to play on Windows, older Android devices, and most browsers.
- H.264 plays everywhere — phones, browsers, smart TVs, projectors.
- Default CRF 23 keeps quality visually identical to the HEVC source.
FAQ
Is this HEVC to H.264 converter really free and without upload?
Yes. The tool runs entirely in your browser using FFmpeg compiled to WebAssembly. Your HEVC file never leaves your device — open the DevTools Network tab to verify zero uploads. No signup, no watermark, no size cap beyond browser memory (~2 GB).
Will converting HEVC to H.264 reduce quality?
The converter re-encodes to H.264 with CRF 23 (visually lossless for most footage). If you need stream-copy instead (no re-encoding), use the Converter tool directly and toggle the codec-copy option.
How long does HEVC to H.264 conversion take?
On an M2 MacBook, a 1-minute 1080p clip converts in about 8 seconds. 4K clips scale roughly linearly. Old machines are slower — processing uses your CPU and GPU, not our servers.
Can I batch-convert multiple HEVC files?
Not yet — the current flow converts one file at a time. Queue multiple tabs if you need parallel conversion.