Create a thumbnail or resize one to YouTube's specs
Your thumbnail is the biggest factor in whether people click your video. A good thumbnail can boost CTR 3–5x. YouTube requires 1280×720 px, a 16:9 aspect ratio, JPG or PNG, and up to 2 MB. Our tool automatically converts any image to these specs, the editor lets you add text and filters, and AI mode creates a thumbnail from scratch based on your description.
Upload any image to this page. We'll automatically crop it to 16:9, scale it to 1280x720 pixels and compress it under 2 MB. If your photo isn't 16:9, you can drag to choose the crop area. Nothing to install — it all runs in your browser.
YouTube usually rejects thumbnails for one of three reasons: the file is over 2 MB, it's less than 640 pixels wide, or the format isn't supported (like BMP or TIFF). Ideal specs: 1280x720 px, JPG or PNG, up to 2 MB. Our tool automatically makes any photo meet these requirements.
When resizing, we automatically compress the file to under 2 MB with minimal quality loss. We use optimized JPEG compression: it starts at 95% quality and, if the file is still over 2 MB, gradually steps down to 60%.
YouTube recommends 1280x720 pixels, a 16:9 aspect ratio, up to 2 MB, in JPG/PNG/GIF. The minimum width is 640 px. These specs haven't changed since 2020 and apply to all content types, including Shorts.
Open this page in your mobile browser, then upload a photo from your gallery or take a new one. We'll automatically resize it to 1280x720 and give you a ready-to-upload file. Works on iPhone and Android — no app needed.
JPG gives you a smaller file with good quality — ideal for photos and realistic images. PNG is better for graphics with text and sharp edges, but the files are larger. In most cases, we recommend JPG at 90-95% quality.
Upload a photo to this page. If it isn't 16:9, a crop frame appears — drag it to select the area you want, then click the resize button. We'll crop, scale and sharpen it automatically.
Resizing to 1280x720 and the text editor run right in your browser — free, with no sign-up, no ads and no watermarks. AI thumbnail generation from scratch uses a neural network and comes with a daily limit. Your images are never stored on our server.
Enter your video title and topic. The AI analyzes the emotional triggers in your title, identifies your niche, picks the best style (from 11 trending styles of 2026) and creates a photorealistic thumbnail. All that's left is to fit the size and download.
Yes. Leave the “Thumbnail text” field empty and the AI will create a purely visual image with no captions. You can add text later in the editor with full control over font, color, shadow and position.
Top trends: emotional faces (shock, surprise), VS/before-after, cinematic shots, high-contrast minimalism, transformation/ranking, Proof of Human (hand-drawn elements + real photos). The AI automatically picks the best style based on your title.
ChatGPT generates images in fixed sizes (1024x1024, 1536x1024), so after generating, click “Fit” — we'll crop and scale the image to 1280x720. You can drag to choose the crop area.
Click “Editor” below the result. The generated image opens in a full-screen editor where you can add text, shapes, emoji and a logo, apply filters, add overlays and export to JPG/PNG/WebP.
Usually 30-90 seconds, depending on complexity. Not happy with the result? Click “Regenerate” and describe what to change. The AI keeps the context and applies your edits.
Besides YouTube (1280x720), you can generate thumbnails for Instagram (1080x1080) and Shorts (1080x1920). Choose the format before generating — the AI adapts the composition to the right aspect ratio.