What does the Uploadcare blog cover?

The Uploadcare blog publishes developer guides and tutorials on file uploads, image and video delivery through a CDN, media optimization, and web performance, with copy-and-paste code examples you can use in real projects.

How do I add file uploads to a website?

You can build file uploads with an HTML form and a backend handler, or drop in a prebuilt file uploader widget. Our tutorials walk through both approaches across JavaScript, React, and other stacks.

Which image format is best for the web?

Use AVIF or WebP for most photos and graphics: they compress smaller than JPEG and PNG while keeping quality. Keep a JPEG or PNG fallback for older browsers, or let a CDN convert formats automatically.

How can I improve my website's image performance?

Compress your images, serve modern formats like AVIF and WebP, size them responsively, lazy-load offscreen images, and deliver them from a CDN. Our web performance guides cover each technique step by step.

Uploadcare Blog: File Uploads, Image CDN & Web Performance

Q: What is an image CDN?

An image CDN stores your images on servers around the world and serves the closest copy to each visitor. It can also resize, crop, and convert images on the fly through the URL, so you ship one source file and deliver optimized variants everywhere.

Recent posts

Convert documents to PDF automatically in n8n

Managing forms and file uploads in React using useActionState

Introducing the Uploadcare CLI: automate file workflows from the terminal

Best image cropping tools for developers in 2026

How do I use Uploadcare with React Hook Form?

How do I restrict file types in an Uploadcare uploader?

How do I handle file uploads in a Node.js Express API?

How do I add signed uploads to an existing Next.js app?

Speculation Rules API: The new alternative to prerender

How to upload files in Laravel with Uploadcare

Image transformations: Developer guide

How to integrate Uploadcare with n8n for file uploads

Uploadcare’s 2025 year in review

How to crop an image in HTML and CSS

How to sharpen images (Automatically with Uploadcare)

How to serve video & audio with Uploadcare video CDN

AVIF vs JPEG XL vs JPEG: Which image format is best for you?

Multipart file uploads explained: Scaling large file transfers with Uploadcare

How to upload files to WordPress — Secure file uploads with Uploadcare

How to create automatic profile pictures (step-by-step guide)

Color recognition: Extract dominant colors from any image automatically

How to compress images for your website without losing quality

How to crop images using jQuery: Complete developer guide

Best CDN for video streaming in 2026: Providers compared

How to upload files in HTML: Complete developer guide

JavaScript upload image tutorial (upload to server & more)

React image optimization: Techniques to speed up your web apps

How to preload images: HTML and JavaScript methods explained

How to create a custom video player in JavaScript and HTML

How to add and customize CSS background image

How to optimize images in Astro: A step-by-step guide

The complete guide to file uploads in Astro applications

What is adaptive bitrate streaming (ABR) and how to use it

Why SaaS should skip DIY file management systems to save over $200K annually

How to optimize images for the Web: Best practice guide

A Guide to HTTP Live Streaming (HLS)

Optimizing apps using React Developer Tools

Creating responsive images with srcset

Performance comparison: Uploadcare vs traditional REST API upload methods

Navigating the codec landscape for 2025: AV1, H.264, H.265, VP8 and VP9

Core web vitals tutorial for web developers and SEO engineers

Adding overlay and watermarks to your images

Enhancing image loading experiences with BlurHash

How to upload files in Node.js application

How to generate PDF thumbnails for the web

How to automate NSFW image detection with Uploadcare

What is an AVIF file? Everything you need to know about the AVIF format

Best smart image optimization tool: We tested four services head-to-head

How we made Blurhash 128x faster

UX best practices for designing a file uploader

Interaction to Next Paint: how to measure and improve it

File uploader validation guide

Automatic malicious file upload detection with Uploadcare

Why are web components not as popular as front-end frameworks?

Building an accessible file uploader: A developer’s guide

Time to First Byte: What it is and how to improve it

How to upload files in Svelte

Introduction to Web Components

What is OKLCH in CSS and why we use it

How to upload large files: A developer’s guide to handling and chunking large file uploads

WooCommerce file uploads with Uploadcare

Image optimization for Next.js applications

How to upload files in React Native

How to upload files in Android with Kotlin

How to upload files in Vue.js

How to load responsive images with uc-img

Build an image gallery with Uploadcare and Nuxt.js

How to upload files in Next.js

Introducing the Uploadcare React file uploader

How to upload files in Webflow using Uploadcare

How to make a Drag-and-Drop file uploader

Introducing Uploadcare Operations-Based Billing

Uploadcare Joins Forces with Tiugo Technologies

HTTP/3 vs HTTP/2 vs HTTP/1.1: What you need to know

How Uploadcare navigates the HTTP/2 vulnerability behind DDoS attacks

Serverless signed uploads with Vercel — Serverless signed uploads, pt. 1

Improve animated GIF performance with HTML5 video

New in Uploadcare dashboard: Files panel, webhooks, workspaces

How to upload files using JavaScript