Hector, the best online upscaler.

Make a PNG, JPG or WEBP two, four or eight times bigger — drawn again at the new size rather than stretched, so the lines stay lines.

Drag a picture here to begin

or paste Ctrl + V

Original Upscaled

Hector, upscaled by Hector. Drag the blade.

Free to try. You see the whole result before you decide anything.

See it in action

Each one is a small picture made four times bigger. The left half is the file you have; the right is what Hector sends back. Drag the blade.

Original

PNG
JPG
WEBP

Original Upscaled

Upscaled

Both halves start from the identical small file. The only difference is who made it bigger.

What stretching does to a drawing

Every program will make a picture bigger. They do it by guessing what sits between the pixels you have, and on a drawing that guess is always the same guess: a blur.

Edges go soft. A line that was crisp becomes a gradient two or three pixels wide, and the drawing loses the thing that made it a drawing.

Or they go blocky. The other setting keeps the edge hard by keeping the staircase, so a curve arrives as a flight of steps.

Flat colour stops being flat. One even fill turns into a field of near-misses, which is what makes an upscaled logo look cheap.

Fine work disappears. A whisker, a highlight in an eye, the counter inside a letter — the parts that were a pixel or two wide go first.

What Hector does instead

Reads the drawing

It was taught on drawn artwork rather than on photographs, so it knows what a line is meant to look like when there is more room for it.

Draws it again

Not stretched and not sharpened. The picture is made afresh at the new size, with the edges drawn as edges and the flat areas left flat.

Keeps the clear parts clear

If the upload had a transparent background it comes back with one, cut in the same place — no white box, no grey fringe around the cut.

Questions

How much bigger can it go?

Two, four or eight times. Which of those you are offered depends on the picture you bring: the smaller it starts, the further it can go. The page works it out when you drop the file in, and only offers sizes it can actually deliver.

What do I get back?

A PNG at the new size, with the transparency kept if the original had any.

Does this cost separately from vectorising?

It is the same credit. One picture upscaled uses one, the same as one picture vectorised, and a plan covers both. Looking is free either way — you see the whole result before you decide.

Can it rescue anything?

No. It cannot put back what was never in the file: if a detail is gone from the small version, it is gone. What it can do is stop the enlargement adding damage of its own.

Should I upscale, or vectorise?

If the drawing is flat artwork and you want it to work at any size for ever, vectorise it. If it has shading or texture that a vector would flatten, or you simply need a bigger picture of the same thing, upscale it.

Bring the picture that is too small.

Upscale a picture See what it costs