# How-To How To Apply Image Filters in WebGL Learn everything you need to get started with kernel-based image filters in WebGL. Antonello Zanini 8 Apr 2022 • 6 min read
# How-To How To Add Overlays to a Video in React Native Learn how to place text or images over your videos in React Native. Antonello Zanini 28 Mar 2022 • 6 min read
# How-To How To Resize and Compress an Image in JavaScript for Upload Learn how to downscale an image in JavaScript by reducing its size and quality before uploading it to your server. Antonello Zanini 4 Mar 2022 • 7 min read
# How-To How To Add a Sticker to a Texture With Three.js Learn how to add an overlay image to your textures in WebGL and JavaScript with Three.js. Antonello Zanini 25 Feb 2022 • 5 min read
# Video Editing How to Make Videos from Still Images with AVFoundation and Swift Convert still images into video files with two strategies. Walter Tyree 10 Feb 2022 • 9 min read
# How-To How To Scale, Crop, Flip, and Filter an Image in CSS Learn how to use CSS to perform the most common image processing manipulations. Antonello Zanini 9 Feb 2022 • 5 min read
# How-To 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. Antonello Zanini 26 Jan 2022 • 5 min read
# Video Editing How to Merge Videos in iOS with Swift Learn how to combine videos in iOS with Swift and jump into advanced creations. Walter Tyree 12 Jan 2022 • 6 min read
# How-To How to Add a Watermark to an Image in JavaScript Create watermarks in Vanilla JavaScript and with watermarkjs! Antonello Zanini 7 Dec 2021 • 7 min read
# iOS App Development 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! Walter Tyree 8 Nov 2021 • 6 min read
# Video Editing How To Add Text to Video in Swift Use Swift and AVMutableVideoComposition to add a text overlay to a video clip! Walter Tyree 15 Oct 2021 • 4 min read
# How-To How To Pixelate an Image in JavaScript Pixelate an image in Vanilla JavaScript without any libraries – with the <canvas> element! Antonello Zanini 14 Oct 2021 • 5 min read
# iOS App Development 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! Walter Tyree 21 Sep 2021 • 6 min read
# HTML5 How to Apply Custom Image Filters Using HTML5 Canvas in JavaScript Apply custom filters in JavaScript without external libraries – with the <canvas> element! Antonello Zanini 14 Sep 2021 • 8 min read
# Swift 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. Walter Tyree 31 Aug 2021 • 6 min read
# App Development How to Create Image Filters for iOS Write a custom `CIFilter` in Metal and Swift, usable in any CoreImage pipeline. Walter Tyree 24 Aug 2021 • 7 min read
# JavaScript How to Draw on an Image With JavaScript Easily implement a brush to draw on an image in JavaScript, without using any external library! Antonello Zanini 23 Aug 2021 • 7 min read
# React How To Resize an Image in React Quickly resize an image with the `react-image-file-resizer` React library. Antonello Zanini 30 Jul 2021 • 6 min read
