Drop in a green or blue screen photo, tune the edges and save a transparent PNG or a new background. Free, unlimited chroma key online that works right in your browser.
Before and after
Each sample has a green screen, blue screen or plain wall behind the subject, keyed with this chroma key online tool and shown on a transparent background.
A surfer kneeling on a board, keyed from green to transparent.
A running shoe on green, ready for a transparent or white listing.
A golden retriever on green, with the soft fur edges kept.
Curly hair on a blue backdrop, with the blue picked up automatically.
A plain white wall detected as the key color and removed.
A leather handbag cut out for a shop or catalog.
Features
Every feature below serves one chroma key online task: picking the backdrop color, cleaning the edges and exporting a full-size PNG.
Use chroma key online as often as you like: there is no account to create, no credit balance and no watermark on the PNG. Because the tool runs in your browser, a shelf of product photos or a stack of thumbnails costs the same as a single image, and every download is yours to use in Canva, slides or a website.
Chroma Key a Photo
The chroma key online tool reads the edges of your picture and picks the backdrop color automatically. Switch to the Blue preset for a blue screen, or click anywhere on the background to key a white wall, a black curtain or a colored paper sweep. The custom color picker covers studio colors that sit between the presets.
Pick a Key ColorThree sliders shape the edge. Tolerance decides how much of the backdrop turns transparent, Edge softness feathers hair and soft outlines, and Spill removal pulls the green or blue tint out of skin, clothing and glass while keeping their brightness. Hold Compare at any time to check the original against your keyed result.
Clean Up the EdgesKeep the background transparent and download a PNG with an alpha channel for layering in design tools, or fill the space with a solid color or an image of your own before you export. A PNG from chroma key online keeps the original image size, so a keyed photo is ready for a thumbnail, a product listing or a slide.
Download a Transparent PNGHow it works
Every chroma key online job starts with one photo and ends with a PNG ready for your design, slide or listing.
Drop a PNG, JPG or WebP image into the page, choose a file, or paste a screenshot with Ctrl+V. Chroma key online keys the backdrop as soon as the image loads and shows a first cutout on a checkerboard, so you start from a result instead of a blank canvas.
If the automatic pick misses, choose the Green or Blue preset or click the backdrop in the preview. Raise Tolerance until the whole backdrop disappears, add Edge softness for smoother hair and outlines, and turn up Spill removal to clear the colored fringe around your subject.
Hold Compare to flip back to the original and check hair, hands and shadows. Keep the background transparent, fill it with a color or add your own image, then download the PNG. With chroma key online you can change any setting and download again.
Use cases
Here is how creators, sellers and teachers use chroma key online to remove green screen from image files for everyday work.
Shoot a reaction pose against your green screen, run it through chroma key online and drop the transparent cutout onto a bright thumbnail background. Keeping the PNG transparent lets you move and resize yourself in your thumbnail editor until the composition works.
Product photos taken on a green or white sweep can become clean, consistent listing images. Use chroma key online to remove the backdrop, add a plain white background, and download a PNG that matches the rest of your catalog.
Character renders and props are often exported on a flat green or magenta background. Key that color out, check the edges with Compare, and save a transparent PNG for overlays, mockups, stickers and sprite sheets.
Photograph yourself or a classroom prop in front of a green cloth, then use chroma key online to place the cutout on a slide background or a school color. The result is ready for presentations, worksheets and newsletters.
Creator stories & examples
“My channel thumbnails always start with a quick shot against the green wall in my spare room. I used chroma key online to drop the green, pulled Spill removal up until the glow left my hair, and saved a transparent PNG that I placed over a bright orange background for the episode thumbnail.”
FAQ
Answers to common questions about using chroma key online for images: cost, privacy, formats and edge quality.
Chroma key online is a way to remove one background color, usually a green or blue screen, from an image in your web browser. This tool turns that color transparent, so you can save a PNG cutout or place your subject on a new background.
Yes — this chroma key online tool is free, with no account, no credits and no watermark. Everything runs in your browser, so you can key as many images as you want and download each PNG as often as you like.
Yes — chroma key works with any plain backdrop color. Choose Blue for a blue screen, or click the background in the preview to key a white wall, a black curtain or a studio color. Raise Tolerance for uneven lighting and lower it again if parts of your subject start to fade.
Your photos stay on your device. This chroma key online tool processes the image inside your browser with JavaScript, so the picture you key and the PNG you download are both created on your own computer or phone.
The chroma key image tool accepts PNG, JPG and WebP files up to 100 MB and 50 megapixels and exports a PNG. With a transparent background the PNG keeps its alpha channel; with a color or image background you get a regular flattened PNG.
If a green outline stays after keying, raise Spill removal before Tolerance: it neutralizes green or blue light reflected onto your subject without cutting into it. If hair or fine edges start to fade, lower Tolerance a little and add Edge softness instead. Hold Compare to check the details before you download your chroma key photo.
Yes — chroma key online exports the PNG at the same width and height as the image you upload. For large photos the preview is drawn smaller while you adjust the sliders, and the download is rendered again from your full-size original.
Yes — for video, open the chroma key remover for video, which removes the background from a whole clip with AI and exports a transparent WebM. This chroma key page is built for still images such as photos, thumbnails and product shots.
Reviewed by RemoveVideoBG TeamUpdated
Related tools
Other tools for removing, replacing, and keying video backgrounds.
Shot for chroma keying? Upload the video and RemoveVideoBG's AI cuts out the subject without asking you for a key color. Save the cutout as a transparent WebM, or as an MP4 or MOV on a solid color.
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RemoveVideoBG's AI separates the subject from the green backdrop in your video, so there is no key color to pick. Download a transparent WebM, or a solid-color MP4 or MOV with the backdrop built in.
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Upload a GIF and RemoveVideoBG's AI cuts its moving subject out of the background. Download a transparent WebM, a video with a true alpha channel, to layer over web pages, video edits and overlays.
Try nowBring a green screen photo, a product shot or a character render, and chroma key online removes the backdrop, lets you tune the edges and saves a transparent PNG or a new background, free with no sign-up.
Chroma Key a PhotoYour image stays in your browser — it is processed on your device. You can also paste an image with Ctrl+V or ⌘V.