# Change video background Change video background colors or add your own image. Choose Portrait AI for people or a color key for green or blue screens. Process locally. Source page: https://cutoutup.com/change-video-background ## A plain color for lessons. Your own image for products. Use portrait AI or a color key, then choose the new setting. These independent examples show solid-color and local-image replacements baked into the downloaded MP4. ### Give a short lesson a consistent blue backdrop Portrait AI · Detailed edges Choose Portrait AI with Detailed edges, then replace the room with #2455bb. A plain backdrop works for short lesson intros, explainer inserts or a series with a consistent color. Inspect the hand gesture, ears and shirt outline. Dark backgrounds reveal pale edge halos; a color change does not relight the presenter. Fictional MiniMax AI presenter · 1260 × 720 · 6.6 seconds · actual MP4 export with its audio track. [Download composite MP4](https://cutoutup.com/tools/cases/course-blue-result.mp4) · [Download source](https://cutoutup.com/examples/course-presenter-source.mp4) · [Source and export record](https://cutoutup.com/tools/cases/course-blue.manifest.json) ### Move a green-screen bottle onto a warm graphic Color key · local image background Choose Color key, sample #27c22f and upload the original warm geometric backdrop. The product framing and movement come from the source; the image is center-cropped to fill the video. Inspect the cap and base edges. The backdrop is included in the file, but the tool does not add a contact shadow or change the product lighting. MiniMax AI product + original geometric artwork · 1260 × 720 · 5.2 seconds · actual MP4 export. [Download composite MP4](https://cutoutup.com/tools/cases/bottle-studio-result.mp4) · [Download source](https://cutoutup.com/examples/product-bottle-source.mp4) · [Source and export record](https://cutoutup.com/tools/cases/bottle-studio.manifest.json) [Download backdrop](https://cutoutup.com/tools/cases/product-backdrop.png) ## Change video background in three steps 1. **Choose the removal method** — Choose Portrait AI for a clearly visible person, or Color key for a green, blue or other solid screen. Use the source preview to check framing and movement. The tool checks input and export support before it starts. 2. **Choose a color or image** — Set a solid background color or select a PNG, JPEG or WebP from your device. Images fill the video frame with a centered crop. Choose Detailed edges when fine hair needs closer inspection. 3. **Download the actual composite** — After export, check the full video, edges and audio. After changing a setting, you can still download the previous export or restore its settings. Export again to apply the new settings. ## A new setting for people and products Portrait AI separates a person; color keying handles products against a suitable solid backdrop. Both can combine the cutout and a replacement background in one local export. ### Consistent colors for a short tutorial Use a plain color to keep a talking-head clip visually consistent. A color that contrasts with hair and clothing also makes edge problems easier to see before sharing. ### Your own still-image backdrop Use an image you have permission to use. Match its perspective and lighting to the subject; an attractive background alone will not correct mismatched lighting or missing foreground detail. ## Video background changer formats and limits - **Video input:** MP4, MOV or WebM; up to 2 GB and 120 seconds, one video track and at most one audio track; input up to a 4K pixel count. - **Background image:** PNG, JPEG or WebP up to 10 MiB and 16 million pixels. The image is cropped from the center to fill the video; animated backgrounds are not supported. - **Video export:** Transparent output is VP9 WebM with Opus audio when present. A color or image uses opaque H.264/AAC MP4 when supported, otherwise opaque VP9/Opus WebM. Format is shown after inspection. Up to 720p bounding box, 30 fps and 2 GB. - **Privacy and access:** Selected video, audio and background image stay on this device. No account or watermark added. Current desktop Chrome is the first browser to try; phones remain unverified. ### Make the replacement believable Start with a clearly visible person, good light and limited motion blur. Fast mode is useful for a quick trial; Detailed edges may keep finer hair but takes longer and does not reconstruct missing details. Inspect the downloaded composite against your chosen background. A light halo can be more visible over a dark backdrop, while a busy image can hide a weak edge in the preview. ## Video background changer questions ### Is the replacement background included in the download? Yes when you choose a color or image. The tool encodes the person and the chosen background into one completed opaque video. Choose Transparent instead when you need an alpha layer. ### Can I use my own photo? Yes. Choose Local image and select a supported PNG, JPEG or WebP. It stays in this browser and fills the video with a centered crop. Use an image you own or have permission to use. ### Why do I get WebM instead of MP4? The browser must support the video encoder and, when your source has audio, the audio encoder needed for MP4. If that path is unavailable, the tool uses WebM and shows that choice before processing. The filename always matches the actual container. ### Can I replace the background of product or pet footage? Choose Color key when the product or pet is filmed against a distinct solid screen. Portrait AI remains for people; general object removal against a complex scene is not supported. ### Can I download a transparent MP4? Transparent MP4 is not available here. Choose Transparent for a VP9 WebM alpha layer, or choose a color or image for an opaque MP4 when supported and WebM otherwise. Test WebM transparency in the receiving editor. ## Current shared service facts - Free video input is MP4 / WebM, up to 2 GB and 120 seconds, within a 3840 × 2160 input pixel count. - Video output is limited to a 720p bounding box and 30 fps; aspect ratio is preserved and output is not upscaled. - Guests get 3 free tasks daily; signed-in accounts get 6 total. All tools share the allowance, resetting at 00:00 UTC. Selected media stays in the browser. - Paid professional export is not open; MOV purchases are unavailable. There is no public execution API or MCP. - [Pricing](/pricing): one calendar month of unlimited tasks, manually renewed. See the pricing page for the current price and checkout availability. Existing video and GIF formats and processing limits still apply. - Local video also has 14400 input-frame and 3602 output-frame budgets, pixel-work bounds, a 512 MiB output buffer and a 30-minute task budget. This is not unlimited processing or a device performance guarantee. - Portrait video tools use portrait AI for people, not general product or pet segmentation. Color keying can process subjects filmed against a distinct solid-color backdrop.