Convert, compress, resize, and optimize your images instantly — right in your browser. No uploads, no waiting, no limits.
Pick a tool and get started instantly — no account needed.
We built the tools we always wished existed.
Your images are processed entirely in your browser. They are never uploaded to any server.
No waiting for uploads or server processing. Everything happens locally on your device.
No subscriptions, no credits, no hidden fees. All tools are completely free to use.
Convert and compress up to 200 images at once. Download as a ZIP with one click.
Fully responsive and works on desktop, tablet, and mobile. No app needed.
Just open the tool and start using it. No account, no email, no sign-up required.
No technical knowledge required. Anyone can use Calcifys.
Pick the tool that fits your need — WebP converter, resizer, PDF maker, or format converter.
Drag and drop your images or click to browse. Select one or hundreds — it handles both.
Set your options, click process, and download. Individual files or a single ZIP.