WAV to MP4
Convert WAV to MP4 with your cover art or a plain title card, ready for YouTube. Free, no watermark, no account.
- Free & unlimited
- No sign-up
- Files never uploaded
- No watermark
- Up to 2 GB per file
How to convert WAV to MP4 with a picture
Three steps, no install. The converter loads once and then works on any .wav you pick.
- 1
Pick the WAV
Drop the .wav on the page or browse for it. Its size and duration show up before anything runs.
- 2
Choose the picture
Keep the default title card, a 1280x720 frame with a music note and the file name, or pick your own PNG, JPEG or WebP artwork.
- 3
Convert and save
The MP4 keeps the WAV's file name. The result screen shows the original size next to the converted one, so you see what you saved.
Why this WAV to MP4 converter suits studio files
WAV is the format your DAW and recorder write. Uncompressed WAV files are also large to send anywhere.
A big file that never has to travel
A 10-minute CD-quality bounce is about 100 MB. Here it is read inside your browser tab, so there is no upload bar to sit through before the work starts.
Much lighter than the WAV
CD-quality WAV runs at 1,411 kbps; the MP4's audio is AAC at 192 kbps. In our test a 20-second WAV of 1.7 MB came out as a 352 KB MP4, cover included.
A picture that weighs almost nothing
The cover is stored as H.264 at 2 frames per second. A still image needs no more, so nearly all of the file is your audio.
Same length as the audio
The video ends exactly where the WAV ends. No black seconds tacked on, no clipped reverb tail.
No branding on your frame
The title card shows a music note and your file name on a dark gradient. There is no site logo and no watermark across your art.
WAV to MP4 converter options side by side
The four routes musicians usually try. Your DAW or editor is the right call when you want moving visuals.
| This converter | Upload-based online converters | Video editor or DAW video export | FFmpeg command line | |
|---|---|---|---|---|
| WAV is uploaded | No, it stays on your device | Yes, kept on their servers | No | No |
| Install needed | No, runs in the browser | No | Yes, plus a project to set up | Yes, plus typing the command |
| Picture | Title card or your own image | Image or color on some sites | Anything, including animation | Whatever the command says |
| File size limit | About 2 GB | Depends on the service | Your disk | Your disk |
| Audio in the MP4 | AAC 192 kbps | Often unstated | Your export settings | Your choice |
| Cost | Free, no sign-up | Free tier, paid plans for more | Varies by app | Free |
What people make from a WAV file
Video platforms and many inboxes take MP4 but turn a bare WAV away.
Demos and singles on YouTube
YouTube wants a video, not an audio file. Put the mastered bounce on its cover art and upload the MP4 as a static-image track.
Mix revisions for the band or client
Send mix 3 as a small MP4 that plays in a phone's video player, and keep the full WAV for the session folder.
Beat and instrumental previews
Producers post a beat with the tag and BPM written on the artwork, so the listing reads clearly in a feed.
Instagram and TikTok posts
Combine the audio and cover into a video you can post. A square cover gives a square video, which fits a feed post without bars.
Voice-over and audition reads
Casting forms and course platforms that accept video only will take a voice reel once it is an MP4 on a title card.
Live sets and field recordings
An hour-long board recording is far too big to email as a WAV. As an MP4 it shrinks enough to share through a video link.
What happens to the sound when a WAV becomes MP4
A WAV holds uncompressed PCM audio, the same samples your DAW wrote. Most MP4 players can't play PCM, so the converter encodes it to AAC at 192 kbps. AAC is lossy: it throws away detail the ear is least likely to notice, and that is where the smaller file comes from.
For listening on YouTube, a phone or laptop speakers, 192 kbps AAC holds up well. For mastering, archiving or sending stems to an engineer, it is the wrong file. Keep the WAV as your master and treat the MP4 as a copy for sharing. Turning the MP4 back into WAV later gives you a bigger file, not the lost detail.
Before you convert a .wav to MP4
- Rename the file first, for example "Artist - Track (demo v2).wav", because the default title card shows the file name.
- Export your cover as PNG or JPEG at the size you want the video to be; images wider than 1920 px are scaled down to that width.
- Use a 16:9 image such as 1920x1080 for YouTube, or a square one for Instagram feed posts.
- Bounce the final mix to WAV from your DAW rather than an MP3, so the only lossy step is this one.
- Play the WAV once from start to end, since the video will match its length to the second, silence and count-ins included.
Common WAV to MP4 mistakes
Mistake: Deleting the WAV after converting.
Do this instead: The MP4 carries lossy AAC audio. Keep the WAV as your master for releases, edits and future remasters.
Mistake: Sending the MP4 to a mastering engineer.
Do this instead: Engineers need the uncompressed bounce. Send the WAV itself through a file transfer service and keep the MP4 for listeners.
Mistake: Sending a long WAV to an upload site's free tier.
Do this instead: Upload sites keep your file on their servers; limits and retention depend on the service, and a long CD-quality WAV is large. Here the file is read locally, up to about 2 GB.
Mistake: Loading a multi-hour session recording.
Do this instead: Past about 2 GB, roughly three hours of CD-quality stereo, the browser runs out of memory. Split the file in your DAW or use FFmpeg on the desktop.
Privacy, cost and limits
The audio stays on your computer
Your file is converted on your own device and is never uploaded to our servers. The site only sends you the converter program, so there is no copy of your unreleased track for anyone to keep.
Free, unlimited conversions
No account, no watermark, no limit on how many tracks you convert. Files go one at a time; there is no batch queue.
About 2 GB per file
Browser memory sets the ceiling. We converted a 1.6 GB file without trouble, while a 2.1 GB one stopped with an out-of-memory message.
One 32 MB download, once
Your first visit fetches the converter, FFmpeg 5.1.4 built for WebAssembly, from jsDelivr. After that it loads from your browser cache.