WebP to M4V Converter

How to Convert WebP to M4V Online

1. Upload Your WebP Files: Drag and drop or click "Add Files" to select WebP images — static stills exported from Photoshop, Squoosh, or cwebp, or animated WebPs saved from Chrome, Telegram stickers, or design tools. Batch is supported — drop in a folder of stills and they'll merge into one M4V slideshow, or queue separate animated WebPs as individual video files.
2. Pick Merge strategy and Image Duration: Under Merge strategy, choose Merge images (combine all uploaded WebPs into one M4V slideshow in upload order) or Video per image (one M4V output per WebP). Set Image Duration to 1/60 second up to 10 seconds per frame — 3-5 seconds is the slideshow default, 1/24 or 1/30 second matches cinematic / standard frame rates for stop-motion. Background Color fills any letterbox area when source aspect ratios don't match (default Black; pick White, Gray, or any of 24 named colors).
3. Set Quality Preset and Video resolution (Optional): Quality Preset defaults to "Very High (Recommended)" with Constant Quality mode — output is visually indistinguishable from the source. Switch to Constraint Quality (capped VBR) for streaming-friendly sizes, or step down to High / Medium / Low for smaller files. Under Video resolution, keep original WebP dimensions, pick a Fixed Resolution preset (4320p / 2160p / 1440p / 1080p / 720p / 480p / 360p / 240p, plus vertical 1080×1920 and square 1080×1080), scale by percentage, or enter custom Width × Height.
4. Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared. Download individually or as a ZIP.

Why Convert WebP to M4V?

WebP is Google's modern image format, supporting both static and animated content. Lossy WebP is 25-35% smaller than equivalent JPEG; lossless WebP is roughly 26% smaller than PNG. Animated WebP uses a VP8 bitstream with ANIM / ANMF chunks for frame data. M4V is Apple's container format introduced in 2006 alongside the iTunes Store — it's nearly identical to MP4 but signals to macOS, iOS, tvOS, iTunes, and Apple TV that the content is a video file rather than a generic MP4 (which might also hold audio-only or app payloads). Apple Photos exports slideshows directly to.m4v. Common reasons to convert WebP to M4V:

• Apple TV / Home Sharing slideshows — Apple TV plays.m4v from a Mac's shared library and from AirPlay sources. Convert a folder of WebP stills into a single.m4v slideshow and Home Sharing recognizes it instantly, with chapter and metadata support that plain image folders lack.
• iTunes / Apple TV app library — The TV app and legacy iTunes auto-detect.m4v as personal video content. Drop the output into the TV app's library on macOS and it shows up under Home Videos without re-import or re-encoding.
• iMovie and Final Cut Pro intake — Both editors accept.m4v with no compatibility step. Turn a WebP storyboard or animated reference into a video track you can drop on the timeline directly.
• Sharing animated WebP with non-Chrome recipients — WebP animation is supported in Chrome, Firefox, Edge, Safari 14+ (macOS Big Sur 11+), and Opera, but iMessage, Mail, Keynote, and many editors don't preview animated WebP at all. M4V plays natively in QuickTime, Messages, Mail, and across the Apple ecosystem.
• iOS / iPadOS embed — M4V plays in any iOS app that uses AVPlayer (effectively every video player on the platform) without polyfills or third-party libraries.
• Replacing GIF for messaging — H.264 inside M4V is dramatically smaller than animated GIF (often 5-10× smaller at the same visible quality) and the M4V container is the iOS-native equivalent of what .mp4 is for Android — guaranteed thumbnail preview in Messages and Mail.

M4V vs MP4 — Format Comparison

The two containers are technically very similar — many tools (including QuickTime and VLC) treat them as interchangeable, and renaming .mp4 to .m4v works for H.264 + AAC payloads. The reason to pick M4V is the Apple-ecosystem signaling, not a structural codec difference.

Quality Preset and Image Duration Quick Guide

Frequently Asked Questions

Will the converted M4V play in iTunes, the TV app, and on Apple TV?

Yes. The output uses H.264 video + AAC audio inside an.m4v container — the exact codec / container combination Apple's apps prefer. Drop the file into the TV app's library (or the legacy iTunes Movies folder) on macOS and it appears under Home Videos without any conversion or re-import step. With Home Sharing enabled, the same file streams to every Apple TV on your network.

Does animated WebP keep its frames when converted to M4V?

Yes. Each frame in the animated WebP becomes a video frame in the M4V at the Image Duration you set. WebP animation uses a VP8 bitstream split into ANIM and ANMF chunks — the converter walks the chunk list and emits H.264 frames in order, preserving timing as closely as the chosen frame rate allows. If your WebP runs at 30 fps and you pick Image Duration = 1/30 second, the output matches the original cadence frame-for-frame.

Why M4V instead of MP4 — aren't they basically the same?

Structurally yes, semantically no. M4V tells macOS, iOS, tvOS, iTunes, and the TV app "this is a video file" — Apple's apps auto-import, generate thumbnails, and handle chapters / AC-3 audio by default. An identical MP4 may be treated as a generic media file requiring manual import. M4V also accommodates AC-3 / Dolby Digital audio without the container quirks some MP4 players hit. For pure cross-platform sharing, see WebP to MP4; for the Apple ecosystem, M4V is the cleaner choice.

Will the output have Apple's FairPlay DRM?

No. FairPlay protection is only applied by Apple to content purchased through the iTunes Store / TV app. The M4V xconvert generates is a plain, unencrypted container — playable on any player that handles H.264 + AAC (QuickTime, VLC, IINA, MPV, browsers, smart TVs, Plex). The.m4v extension itself does not imply DRM; only iTunes-store-issued.m4v files are protected.

Can I make a slideshow from a folder of WebP stills?

Yes — that's the default behavior with Merge strategy = Merge images. Upload all your WebP files in the order you want them to appear (the file list is reorderable before you click Convert), set Image Duration to 3-5 seconds per frame, pick a Background Color for letterbox fill if your aspect ratios vary, and you'll get a single M4V slideshow. Compare to Apple Photos' built-in slideshow export, which is fixed to 480p / 720p / 1080p; xconvert lets you pick anything up to 4320p (8K).

What about audio? My WebPs are silent.

WebP doesn't carry audio. The default output is a silent M4V (which the TV app and QuickTime handle without warning). If you want music, convert the WebPs to M4V first, then drop the result into iMovie or Final Cut Pro and add an audio track — both editors accept the M4V output directly. There's no in-converter audio add step.

Will frame timing be exact for animated WebP at 24 / 30 / 60 fps?

Close to exact, with one caveat: WebP allows per-frame variable delays (each ANMF chunk carries its own millisecond duration), while video frame rates are fixed. The converter picks the closest fixed frame rate to your selected Image Duration. For uniform-cadence animations (most animated WebPs from design tools and Telegram stickers), the result is frame-accurate. For irregular cadences, individual frame durations are rounded to the nearest frame slot — visible only on side-by-side comparison.

What's the file size limit?

The practical limit is upload size and connection speed. Files are processed on our servers — hundreds of WebP stills merging into a multi-minute 1080p M4V is handled comfortably. There's no fixed per-file cap and no count limit on batch jobs — much higher than typical online converters (ezgif's WebP-to-MP4 tool, for example, caps at 200 MB per file).

Can I convert back the other way?

Yes — see M4V to WebP for extracting an animated WebP from a video, or M4V to MP4 to switch the container without re-encoding. For the more common JPG / PNG starting points, see JPG to M4V and PNG to M4V. To shrink the result further, follow up with Compress M4V.