How-To
How to Make Videos from Still Images with AVFoundation and Swift
Convert still images into video files with two strategies.
How To Scale, Crop, Flip, and Filter an Image in CSS
Learn how to use CSS to perform the most common image processing manipulations.
How To Manipulate an Image With Jimp in React
Let's get started with Jimp in React. Easily alter images with a few lines of code.
How to Merge Videos in iOS with Swift
Learn how to combine videos in iOS with Swift and jump into advanced creations.
How to Add a Watermark to an Image in JavaScript
Create watermarks in Vanilla JavaScript and with watermarkjs!
How to Add a Filter to a Video Stream in iOS
Applying stunning filters to videos requires different methods than applying them to files in iOS. Find out how!
How To Add Text to Video in Swift
Use Swift and AVMutableVideoComposition to add a text overlay to a video clip!
How To Pixelate an Image in JavaScript
Pixelate an image in Vanilla JavaScript without any libraries – with the <canvas> element!
How To Record Screen Video Using ReplayKit for iOS
Use Swift and ReplayKit to add screen recording to your application. Also use the new rolling clips feature introduced in iOS 15!
How to Apply Custom Image Filters Using HTML5 Canvas in JavaScript
Apply custom filters in JavaScript without external libraries – with the <canvas> element!
How to Trim and Crop Video in Swift
Learn how to use Swift and AVKit to crop a video clip and trim a video timeline.
How to Create Image Filters for iOS
Write a custom `CIFilter` in Metal and Swift, usable in any CoreImage pipeline.


