HEVC to WEBA Converter

Convert HEVC to WEBA: Read This First

A file with a bare .hevc extension is normally a raw H.265 video bitstream — the naked sequence of compressed picture data an encoder writes out, with no container wrapped around it. By the standard's own design it carries picture only. So if your goal is to pull a soundtrack out of a .hevc and save it as a WEBA (audio-only WebM) file, there is usually nothing to pull, and the job stops rather than handing you a silent file. This page explains how to tell which kind of file you actually have, what the converter does with each, and where to go instead when the audio you want lives somewhere else.

How to Convert HEVC to WEBA

1. Upload Your HEVC File: Drag and drop your .hevc onto the page, or click "+ Add Files" to choose it from your computer. Several files can be queued and processed in one batch with the same settings.
2. Choose a File Compression Mode: Open the options. File Compression starts on Quality Preset, whose dropdown runs from Highest down to Lowest. Switch to Specific file size to aim at a size in megabytes, Custom Bitrate to type an exact rate (the box starts at 128 Kbps), or Constant Bitrate to pick a fixed rate from a list that runs 8 kbps to 384 kbps with 128 kbps preselected.
3. Set Audio Channel, Sample Rate, or Trim (Optional): Audio Channel offers Original, Mono and Stereo, and Audio Sample Rate offers Original plus fixed rates from 8000 Hz up to 48000 Hz — reach for these only when you need to force a channel count or a specific rate. Trim has an Unchanged setting and a mode where you enter a start time and a duration to export just that stretch.
4. Convert and Download: Click Convert and download your WEBA. No sign-up, no watermark. If the source was a genuine raw H.265 stream, the job will report a failure instead — there is no audio track in the file for an audio-only target to write.

Which Kind of File Do You Actually Have?

HEVC and WEBA at a Glance

Common Errors and How to Fix Them

• "The conversion failed and I got no file" — The .hevc is a true video-only elementary stream. An audio target discards the picture and then has no stream left to write, so ffmpeg refuses to create an empty file. Upload the original container instead.
• "I expected a silent WEBA, not an error" — A silent audio file would require an audio stream full of silence; the source has no audio stream at all, so there is nothing to encode. The failure is the honest outcome.
• "My file plays with sound but is named .hevc" — Then it is a container (almost always MP4 or MOV) that was renamed. It converts normally, and you will get Opus audio out of it.
• "My player will not open the .hevc at all" — A raw stream has no index and no duration, so many players reject it on open. That is expected and does not stop the upload; the converter reads the raw stream directly.
• "I actually wanted to keep the video" — WEBA is audio-only by definition, so the picture is dropped by design. Use HEVC to MP4 for the widest playback, or HEVC to WebM for the open-format equivalent that keeps both streams.

When This Doesn't Work

No tool can extract audio that was never written into a file, and a spec-correct raw H.265 stream never has any. The real fix is to go back one step to the container the video came from, because a container is what interleaves a video track and an audio track in the first place. Use MP4 to WEBA for MP4 files, MKV to WEBA for Matroska, or MOV to WEBA for QuickTime. If you would rather have something more universally playable than WebM audio, MP4 to MP3 is the safe default. And if you only want a section of a long recording, Audio Cutter trims the extracted file afterwards.

Frequently Asked Questions

Why does my HEVC to WEBA conversion fail instead of producing a silent file?

Because an audio-only output needs at least one audio stream, and a raw .hevc has none. HEVC — standardised as ITU-T H.265 and ISO/IEC 23008-2 and approved in April 2013 — is a video codec: it defines how picture frames are compressed and says nothing about sound. When the converter drops the video stream to build an audio file, nothing is left, so it stops rather than writing a zero-stream container. In our own check on a freshly encoded raw H.265 stream, the file reported exactly one stream, of type video, and an audio-only encode of it ended with "output file does not contain any stream".

Does a .hevc file ever contain audio I can extract?

Only when it is not really a raw stream. An elementary stream carries exactly one kind of data by definition, and for .hevc, .h265 and .265 that data is picture. If a file with that extension plays with sound in a media player, it is almost certainly an MP4 or MOV that someone renamed, and it will convert to WEBA normally. The quickest test is simply to play it: sound means a container, silence means a raw stream.

What audio codec does the WEBA output use, and can I change it?

The output is Opus in a WebM container, and there is no codec picker on this page — WEBA has exactly one audio codec here, so the control is not shown. That is a reasonable fixed choice: Opus is the modern WebM audio codec and holds up better at low bitrates than Vorbis, the older alternative WebM permits. What you can change is the rate: Quality Preset, Specific file size, Custom Bitrate, or a Constant Bitrate from 8 kbps up to 384 kbps.

Is .weba the same thing as .webm?

The container is identical — WebM, itself a subset of Matroska — and the media type for audio-only WebM is audio/webm. The .weba extension is a convention that marks a WebM file holding audio and no video, so that a file manager or player can tell at a glance that there is no picture in it. Players that open .webm normally open .weba too. If a stubborn application refuses the extension, renaming the file to .webm usually resolves it without touching the bytes.

How can I check whether my .hevc has an audio track before uploading?

Open it in VLC or mpv and listen. If you hear audio, the file has a track to extract. If it plays as silent video, it is a true H.265 elementary stream and no setting on this page will produce sound. If you have ffprobe available, running it on the file is more definitive still: a raw stream shows a single stream of type video, and reports its duration and bitrate as N/A because there is no container header to record them.

What bitrate should I pick for the Opus output?

For a spoken-word recording, something in the 32–64 kbps range is usually plenty, and Opus stays intelligible far lower than older codecs do. For music, the preselected 128 kbps is a comfortable transparent-sounding choice, and going above roughly 192 kbps buys very little for stereo material. If you are aiming at a hard size limit rather than a quality target, use Specific file size instead and let the encoder work out the rate.

Why would anyone convert HEVC to WEBA in the first place?

It is an unusual pairing. HEVC belongs to the MPEG patent ecosystem that Apple devices favour, while WebM and Opus come from Google's royalty-free WebM Project and are aimed at web delivery. Most people who land on this conversion have an iPhone or screen-capture file that is really an MP4 carrying H.265 video plus AAC audio, and what they want is that AAC track re-encoded as royalty-free Opus for a web page. Starting from the original container rather than a demuxed stream gets them there.

Can I keep the video and the audio together in an open format instead?

Yes — that is what WebM proper is for. WebM carries VP8, VP9 or AV1 video alongside Opus or Vorbis audio in one file, so HEVC to WebM gives you a single royalty-free file with both streams. If broad device playback matters more than open licensing, HEVC to MP4 is the more compatible choice and keeps the efficient H.265 family of codecs in play.

How are my files handled, and how long are they kept?

Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public. The practical limit on a very large 4K H.265 capture is upload time over your connection rather than anything about the file itself.