Sign with your mouse, your trackpad, or your thumb
You’ve got a contract, an email footer, or a digital form that wants a signature, and you don’t own a scanner. Printing the page, signing it, then photographing it back into a crooked JPEG? Skip all of that.
Just draw. Move your cursor across the pad like you’d move a pen across paper, or use your finger if you’re on a phone or tablet. The line follows you in real time. When the signature looks right, one click hands you back a clean PNG with a see-through background, ready to drop onto a PDF, a letterhead, or a checkout page.
How it works
The canvas listens for pointer events, which is the one input model that covers a mouse, a stylus, and a touchscreen all at once. So the same controls work whether you’re on a desktop with a Wacom tablet or a phone in line at the bank.
- Pick a pen color. Five presets cover the usual ink shades, from near-black to blue and red. Want something exact? The color picker takes any hex value.
- Set the thickness. Drag the slider from a fine 1px line up to a chunky 20px stroke. Thinner reads as a fountain pen, thicker as a marker.
- Draw your signature on the checkered pad. The checkerboard is just a visual cue that the background is transparent. It won’t show up in the file.
- Undo or clear if a loop comes out wrong. Undo peels off your last stroke. Clear wipes the whole pad so you can start fresh.
- Download PNG when you’re happy with it.
Strokes are smoothed with quadratic curves between sample points, so the line looks like handwriting instead of a jagged set of straight segments. A quick tap leaves a round dot, the same way a real pen would.
Why the transparent background matters
Most signature images come out as a white box. Paste one of those over a colored document or a photo and you get an ugly rectangle around your name. This export has no background at all, so only the ink shows. Layer it over anything: a navy email banner, a contract with shading, a gradient header. The pen marks float on top and the rest stays invisible.
The file is a standard PNG, which every app understands. Drop it into Google Docs, Word, Photoshop, Figma, Canva, or a PDF editor and it behaves like any other image with alpha transparency.
Good to know
Nothing you draw leaves your device. The whole thing runs on a canvas element in your browser, so your signature isn’t uploaded, stored, or sent anywhere. Close the tab and it’s gone.
The internal canvas renders at 800 by 320 pixels, larger than it looks on screen, which means the downloaded PNG stays crisp even if you blow it up. For most footers and forms that’s plenty of resolution.
One honest caveat: a drawn signature is a picture, not a cryptographic e-signature. It’s perfect for casual sign-offs, email footers, and informal forms. If you need a legally binding digital signature with an audit trail, that’s a different category of tool entirely.
Common questions
Does it work on my phone?
Yep. Touch input is handled the same way as a mouse, so you can sign with your finger or a stylus on any phone or tablet. The pad scales to your screen width.
Will the white background show up in the file?
Nope. The checkered pattern you see is just there to signal transparency. The PNG you download has a fully transparent background, so only your ink appears.
Can I undo just the last line I drew?
Yes. The Undo button removes your most recent stroke and leaves everything else in place. Tap it again to keep stepping back, one stroke at a time.
How do I make the line thinner or thicker?
Drag the thickness slider before or while you draw. It ranges from a hair-thin 1px up to a bold 20px. The change applies to new strokes, so you can mix weights in one signature.
Is my signature uploaded anywhere?
No. Everything happens locally in your browser. There’s no server call, no account, and no storage. Refresh the page and the canvas is blank again.