Test asset optimization in seconds
Drop images, PDFs, JavaScript, CSS or other frontend assets and instantly compare the optimized result.
You'll get a temporary CDN link for testing. Create a free project when you're ready to keep production-ready URLs.
Temporary Playground links expire after 7 days and are intended for testing only. For production assets, create a Smooth CDN project to keep permanent CDN URLs and automate optimization.
Test the same asset types your app actually uses
Upload images, videos, audio, PDFs, JSON, scripts, stylesheets, and more. Playground lets you validate optimization quality and preview temporary CDN links before you create a project for permanent production URLs.
Images
PNG, JPG, WebP, AVIF, ICO
Code and text
JS, CSS, JSON, SVG, CSV, XML, MD
Fonts
WOFF2, WOFF, TTF, OTF
Audio and video
MP3, WAV, M4A, MP4, MOV, WebM
Documents
PDF, DOCX, XLSX, PPTX
Ready to move from testing to production?
Playground is for fast testing. Smooth CDN projects are for permanent URLs, release automation, backend workflows, CMS media, and desktop sync.
CLI
Create a project, upload build output from scripts or CI, and keep permanent production CDN URLs.
Desktop App
Sync local folders into a real project when asset updates need permanent URLs beyond Playground testing.
API
Create projects, push assets, and wire permanent production asset workflows into your backend.
WordPress plugin
Move WordPress media handling into a project-based workflow with permanent CDN URLs.
Strapi plugin
Connect CMS-managed assets with permanent project URLs and automated optimization.
Ready to use optimized assets in production?
Move from Playground testing to a Smooth CDN project to keep permanent CDN URLs, organize assets, connect CI/CD, sync folders, and automate your asset workflow.