Signal Icon | Free SVG / PNG, Premium Animated GIF / APNG Customizable Icons

Icon signal

from Loading.io Animated Icon Library

In signal processing, a signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time varying voltage, current or electromagnetic wave that carries information. A signal may also be defined as an observable change in a quantity.Any physical quantity that exhibits variation in space or time can be a signal used, among other possibilities, to share messages between observers. According to the IEEE Transactions on Signal Processing, a signal can be audio, video, speech, image, sonar and radar-related and so on. In a later effort of redefining a signal, anything that is only a function of space, such as an image, is excluded from the category of signals. Also, it is stated that a signal may or may not contain any information.

— adopted from wikipedia, "signal", available under CC BY-SA License.

Loading Icons

customizable icon library built for animation

Loading.io's icon library provides thousands of icons that are all customizable and animatable. You can choose up to 100+ animations and apply to any icons you picked to generate customized images with various formats including GIF, SVG, APNG, PNG sequence, Lottie, MP4 and WebM.

CC-BY Free Icons

When using in static form, most icons in Loading.io's icon library are released under CC-BY License, which can be used freely with attribution.

Animatable

Loading icons are designed to be animated. We provide a handy collection of animation presets for you to apply on the icons you need, and generate the animation in desired format.

Animations can be customized and applied to single element of icons, making your design subtle and unique comparing to others.

Customizable

All icons we provided are customizable by colors, size as to animation types and speed. With our online icon editor you can make icons with transparent background or convert them into black and white easily.

You can also keep your customization in loading.io for future use, or share directly with others.

Vector format Image

All icons are designed with the loseless vector format SVG to optimize the image quality and file size.

In addition to SVG format, we also provide GIF / APNG / PNG Sequence format download for generating images in static form.

Lottie Powered

Maximize flexibility with Lottie format generation for using in mobile apps, web applications and programmatically control your animation.

Lottie generation is possible for icon, text and spinner animations as an alternative format for modern frameworks.

License

All icons in their static form are released under Loading.io BY License ( simliar to CC-BY ), so you can download these free icons and use their static form in your projects with proper attribution; additionally, we also provide pro features for building animated images. You can subscribe and upgrade to pro account to unlock the animation features, or purchase per item to unlock the features only for the icon you need.

If you don't want to attribute, we also provide options for you to pay to remove attribution. To learn more about loading.io license, please check our license document.