MP4 Converter
Convert any video to MP4, or an MP4 to MP3, GIF, MOV, WebM, and more. Free, no signup, no watermark.
MP4 Converter Features
EchoWave's MP4 converter is used by video editors, marketers, teachers and content creators around the world.
Every direction
One MP4 converter for both directions
Turn MOV, MKV, AVI, WebM, WMV, FLV, MPEG, 3GP, or GIF into an MP4 with H.264 video and AAC sound, the format phones, TVs, browsers, and every upload form accept. Or start from an MP4 and get MP3, WAV, GIF, MOV, WebM, AVI, and more. The busiest pairs have their own pages: MOV to MP4, MKV to MP4, WebM to MP4, MP4 to MP3, and MP4 to GIF.
-
21
formats to and from MP4
-
0
watermarks on converted files
-
1 GB
plain H.264 files up to this size are rewrapped, not re-encoded
-
$0
to convert, no account needed
Convert and edit
A converter that finishes the job
Most converters hand you back a file; EchoWave hands you a file you have already trimmed, captioned and compressed.
-
Everything to MP4
MOV, MKV, AVI, WebM, WMV, FLV, MPEG, TS, VOB, 3GP, M4V, and GIF all convert to MP4. The video becomes H.264 and the sound AAC, the pair every phone, TV, and browser plays.
-
A rewrap when nothing needs re-encoding
Plain H.264 in a MOV, MKV, or M4V under 1 GB is copied into the MP4 untouched, so it looks identical and keeps its size. HEVC, older codecs, and bigger files are re-encoded once.
-
MP4 to MP3 and other audio
MP4 to MP3 saves the sound as a 192 kbps MP3, and WAV, FLAC, M4A, AAC, AIFF, and WMA are one click away. For 128 or 320 kbps MP3, the extract audio tool lets you choose.
-
GIF to MP4 and back
GIF to MP4 turns a heavy animated GIF into a small video. Going the other way, MP4 to GIF lets you pick up to 60 seconds, the frame rate, and the width.
-
Codec choice for MP4
Auto writes H.264 for the widest playback. Advanced settings offer H.265 (HEVC) for smaller files, AV1 for modern browsers, or Copy source stream to keep the original video untouched.
-
MP4 to MOV, WebM, AVI, and more
MP4 to MOV suits Final Cut and iMovie, MP4 to WebM suits web pages, and MP4 to AVI suits older Windows players.
-
Smaller MP4s
Converting does not aim at a size. If an MP4 is too big to email or upload, the video compressor shrinks it without changing the format.
-
Runs anywhere you have a browser
Chrome, Edge, Firefox, and Safari on Mac, Windows, Linux, Chromebook, iPhone, and Android all run the converter, with nothing to install.
How it works
How to convert a video to MP4
The same four steps work for MOV, WebM, AVI, MKV, GIF or any other supported source format.
-
Upload your file
Drag a video onto the page or pick it from your phone or computer.
-
Pick MP4, or another format
MP4 is selected by default for video. Starting from an MP4? Choose MP3, GIF, MOV, or any of the other formats instead.
-
Advanced settings (optional)
Choose H.265, AV1, or Copy source stream if the default H.264 is not what you need.
-
Convert and download
Download the file when it is ready, with no watermark.
Who converts to MP4
Common MP4 conversion jobs
-
iPhone footage for Windows
MOV clips straight off an iPhone often stutter or fail to open on Windows machines. Converting to MP4 makes them play everywhere, including inside PowerPoint decks.
-
Screen recordings people can open
Browser-based screen recorders usually save WebM, which some apps and email clients cannot play. An MP4 copy embeds cleanly in Slack, Notion and slide decks.
-
Podcast episodes from video calls
A recorded interview holds good audio trapped in a video. Convert the MP4 to MP3 and publish the sound on its own.
-
GIFs for social feeds
Platforms compress animated GIFs badly, and some reject large ones outright. The MP4 version is a fraction of the size and looks sharper.
-
Old archives worth keeping
AVI and MKV files from old cameras and hard drives play poorly on current devices. Convert the keepers to MP4 so they open on anything you own now.
-
Course and lecture uploads
Learning platforms nearly always want MP4 with H.264. Convert the recording once and upload one file that works for every student.
Compare
How EchoWave compares
| Feature | EchoWave | CloudConvert | FreeConvert | HandBrake |
|---|---|---|---|---|
| Convert MOV, WebM, AVI and MKV to MP4 | Yes | Yes | Yes | Yes |
| Runs in the browser, no install | Yes | Yes | Yes | no (desktop app) |
| Full video editor included (trim, text, layers) | yes (one click away) | No | No | No |
| AI captions with styled presets | yes (in the editor, 176 styles) | No | No | No |
| Codec choice for MP4 (H.264, H.265, AV1) | Yes | Yes | Yes | Yes |
| MP4 to MP3 audio extraction | yes (192 kbps MP3) | Yes | Yes | No |
| GIF to MP4 | Yes | Yes | Yes | Yes |
| Burn SRT subtitles into the video | yes (in the editor) | yes (via SRT option) | yes (separate tool) | Yes |
| Niche inputs (WMV, FLV, VOB, 3GP) | Yes | Yes | Yes | No |
| Works offline | No | No | No | Yes |
| Free downloads | yes (no watermark) | yes (daily limits) | yes (size limits) | Yes |
Based on each tool's public pages as of July 2026; EchoWave column checked against the app in November 2026. Free tiers and limits change often, so check current terms before you decide.
Convert to MP4 without installing anything
Upload a file, keep MP4 selected, and download it with no watermark.
How creators use EchoWave in real projects
About the EchoWave team
EchoWave is a browser-based video and audio editor built by Lemon Vault LLC since 2018. The people who build the editor write these guides and test every step in the production app before publishing.
MP4 Converter FAQ
How do I convert a video to MP4?
Upload it here, leave MP4 selected, and convert. The video becomes H.264 with AAC sound; plain H.264 sources under 1 GB are rewrapped without re-encoding.
Is MP4 the same as H.264?
No. MP4 is a container, the file that holds the streams; H.264 is the video codec usually inside it. An MP4 can also hold H.265 or AV1 video, which is why some MP4s still refuse to play on older devices.
Why is MP4 the most compatible video format?
Phones, browsers, smart TVs, game consoles, and every major upload site support MP4 with H.264 and AAC. It has been the default for over a decade, so hardware decoders for it are everywhere.
Can I convert a video to MP4 without losing quality?
Yes when the video is already plain H.264: under 1 GB it is copied into the MP4 untouched. Other codecs have to be re-encoded, which compresses the picture once more; choose Copy source stream if your source is H.265 and you want it kept as is.
How do I convert MP4 to MP3?
Upload the MP4, choose MP3, and convert. You get the soundtrack as a 192 kbps MP3. See MP4 to MP3 for iPhone and Windows tips.
What is the difference between MP4 and MOV?
Both are containers that usually hold the same H.264 video and AAC sound. MOV is Apple's QuickTime format; MP4 is the ISO standard every platform accepts. Converting between them is often a rewrap with no quality change.
Why won't my MP4 play?
Usually the codec inside is the problem: HEVC or AV1 video, or AC-3 sound, that an older device cannot decode. Converting to MP4 with Auto settings gives H.264 and AAC, which play almost anywhere.
How do I make an MP4 file smaller?
Use the video compressor, which targets size directly. Converting to H.265 under advanced settings also tends to produce a smaller MP4, but some older devices cannot play H.265.
Is the MP4 converter free?
Yes. Converting to or from MP4 is free, needs no account, and the converted file carries no watermark. The separate video editor also has a free plan; its exports are 720p with a small badge, which paid plans remove.
Ready to convert your next file?
Free, no signup, and no watermark on the converted MP4.
Get Started →