MP4 to Lottie ZIP
Wrap short video frames inside a Lottie JSON so product clips, AI stickers, loaders, and onboarding animations can be dropped into existing Lottie pipelines.
MP4 to Lottie, GIF, WebM, or PNG sequence
Convert MP4, MOV, GIF, or image sequences into transparent Lottie ZIP, GIF, WebM, or PNG frames. Green-screen keying runs locally. Free, no signup, no upload.
Reading video…
Built for AI-generated short clips
AI video tools are now producing short, sharable clips by the minute — and most of them have solid or green-screen backgrounds you actually want to drop out. The usual options are unappealing: After Effects is overkill, online SaaS strips alpha and keeps your footage on a third-party server, and Resolve takes minutes of setup per clip.
The EasyLottie MP4 tool runs the whole pipeline locally. WebCodecs decodes the video frame-by-frame, a WebGL2 Keylight-style shader pulls the matte, and the format you pick — GIF, Lottie ZIP, transparent WebM, or PNG sequence — is encoded right in the browser. Nothing leaves your device.
Each format has a tradeoff: GIF is universal but 1-bit alpha; WebM (VP8 + alpha) is smaller and smoother but Chromium-only; Lottie ZIP wraps the frames as a raster image sequence so it plays in any Lottie runtime; and PNG sequence is the lossless option for hand-off into AE, DaVinci, Premiere, or wherever.
One converter for the formats people actually search for
Most MP4 to Lottie searches are really about one of four jobs: make an AI video usable on a web page, remove a green-screen background, export a transparent animation for Chromium, or hand off clean PNG frames to a motion tool. EasyLottie keeps those jobs in one browser workflow instead of sending you to After Effects, FFmpeg, and a separate GIF maker.
Green screen to transparent GIF
Pick the green background, tune tolerance and softness, then export a GIF for chat, docs, email, or places where WebM is not supported.
MP4 to transparent WebM
Export smaller, smoother VP8 WebM with alpha for Chrome, Edge, Brave, and Arc when you need high-quality transparent playback.
Video to PNG sequence
Download every keyed frame as transparent PNGs for After Effects, DaVinci Resolve, Premiere, Figma plugins, or custom render pipelines.
How it works
Drop your source
Choose or drag a video (.mp4 / .mov / .webm), a GIF, or an image sequence (multi-select PNG/JPG/WebP files or a .zip of them). Up to 100 MB total. Read locally — nothing is uploaded.
Trim the clip
For video, set in / out points on the timeline. GIF and image sequences use the full source range; trim before upload if you need a subset.
Pull a key (optional)
Pick the background color from the live preview, then tune tolerance, softness, despill, and choke. Skip this step if your source already has transparency.
Choose a format
GIF for universal sharing, transparent WebM for Chromium, Lottie ZIP for animation tooling, or a PNG sequence for After Effects / DaVinci.
Render and download
EasyLottie decodes, keys, and encodes entirely on your device, then hands you the file.
Frequently asked questions
Can I convert MP4 to a true vector Lottie?
No browser tool can turn arbitrary video footage into clean vector motion automatically. EasyLottie exports a Lottie ZIP that wraps keyed video frames as a transparent raster sequence inside Lottie, which is the practical format for AI clips, product shots, green-screen footage, and other pixel-based video.
Is anything uploaded?
No. The decoder (WebCodecs), the chroma key (WebGL2), and the encoder all run locally in your browser. Your video never leaves your device.
Why does the Lottie output look big?
Lottie is a vector format. To wrap a video, EasyLottie embeds the keyed frames as a transparent image sequence inside a Lottie JSON. The result plays in any Lottie runtime but is bigger than a true vector Lottie. For tiny files use GIF; for crisp playback use the WebM or PNG sequence.
Why is the GIF transparency jagged?
GIF only supports 1-bit alpha — pixels are either opaque or fully transparent. EasyLottie thresholds the alpha at 50%, which is the format limit, not a bug. For soft alpha use the WebM or PNG sequence.
Why is the Transparent WebM card disabled in my browser?
Firefox strips alpha from MediaRecorder VP8 output, so we disable WebM on Firefox until that changes. Chrome, Edge, Brave, and Arc all preserve the alpha plane and work.
What are the limits?
Up to 100 MB input, 15 s processable duration, 1080 px long-edge output, and 450 total frames. Most short AI-generated clips fit easily; over-limit prompts let you trim.
Which browsers are supported?
Chrome 94+, Edge 94+, Safari 16.4+, Firefox 130+. Older browsers can't decode MP4 in-page; you would have to upload your video, which we refuse to do.