Is the image converter free to use?

Yes, all our image tools including the converter, resizer, and optimizer are completely free to use.

Are my images uploaded to a server?

No, we use a privacy-first approach. All image processing happens locally in your browser, so your files never leave your device.

What image formats are supported?

We support a wide range of formats including JPG, PNG, WEBP, SVG, and GIF for conversion and optimization.

Understanding Aspect Ratios: A Cheat Sheet for Digital Creators | Image Converter & Optimizer

What is an Aspect Ratio?

An aspect ratio is the proportional relationship between an image's width and its height. It's expressed as two numbers separated by a colon, like 16:9 or 4:3. It does not represent the actual size in pixels, just the shape.

Common Aspect Ratios

16:9 (Widescreen): The standard for YouTube, HD video, and most desktop monitors.
9:16 (Vertical): The standard for TikTok, Instagram Reels, and YouTube Shorts.
1:1 (Square): Popularized by Instagram, great for grid layouts.
4:5 (Portrait): The optimal ratio for Instagram feed posts, taking up maximum screen real estate on mobile.
3:2: The standard ratio for 35mm film and most DSLR cameras.

Why It Matters

If you try to force a 16:9 video into a 9:16 space, you'll either get massive black bars (letterboxing) or you'll have to crop out the sides of the video. Using an Aspect Ratio Calculator helps you plan your crops and dimensions before you publish.