About artue.fun

// building tools we'd actually want to use

artue.fun is a small collection of image tools built for one reason: most "free" online image tools are slow, cluttered with ads, and — worse — quietly upload your files to a server before doing anything with them. We wanted something different.

Every tool on this site runs entirely inside your browser using the HTML5 Canvas and File APIs. When you drop an image onto a tool, it never leaves your device. There's no upload step, no server-side processing queue, and no copy of your file sitting on someone else's storage.

How the tools actually work

When you select or drop a file, JavaScript reads it directly into memory using the File and FileReader APIs. The image is drawn onto an in-memory <canvas> element, which is where the real work happens:

• Compression re-encodes the canvas to JPG or WEBP at a chosen quality using canvas.toBlob().
• Resizing draws the source image onto a canvas of new dimensions, letting the browser's image smoothing handle interpolation.
• Format conversion simply exports the same canvas as a different MIME type.
• Cropping maps your on-screen selection box back to the image's native resolution and draws only that region onto a new canvas.
• Watermarking draws text directly onto the canvas above the image, with position, size, color and opacity you control.
• Base64 encoding uses FileReader.readAsDataURL() to produce a data URI directly, with no canvas step at all.

Once processing finishes, the result is offered to you as a direct download via a temporary object URL — nothing is transmitted anywhere.

Why we built it this way

Client-side processing has three practical advantages over a typical upload-and-wait tool: your files stay private, there's no server queue so results appear instantly, and the tools keep working even on a flaky connection once the page has loaded.

Who this is for

Developers who need a quick favicon set or a base64 data URI without leaving the browser. Designers batch-converting a folder of exports. Anyone who just needs to shrink a photo before emailing it. If that's you, we built this for you.

Get in touch

Found a bug, or want a tool that isn't here yet? Visit the contact page — we read every message.