Color Replacer
Click a color to select it, then paint it a new one. Made for changing a background from one color to another, or turning a blotchy, uneven area into a single clean color — all in your browser, nothing uploaded.
How to change one color in an image without touching the rest
Ordinary paint programs are surprisingly bad at this. The moment a background isn't a single perfect color — and it almost never is, because saving as JPEG scatters one flat color into dozens of near-identical shades — a paint bucket fills only the exact pixels you clicked and leaves a speckled halo behind. Color Replacer solves that the way a proper photo editor does: you click a spot, and every pixel joined to it by a similar color is selected together, following the real shape of the area rather than a rectangle. Then, instead of erasing that selection, it repaints it toward a color you choose. Two clear jobs live here — swapping a background from one color to another, and flattening a messy area into one clean tone — and both come from the same click.
Changing a background from one color to another
This is the classic case: a logo or product shot sits on a blue background and you need it on red, or a plain white studio background needs to become brand grey. Load the image, click the background once, and raise the Color match setting until the whole background is highlighted — watch the edges, because the middle is always easy and the border is where the decision is made. Pick your New color, leave Strength at 100% for a solid, even fill, and download. Because the selection follows connected color, the subject in the middle is left completely alone, even where it shares a shade with the background — you are only ever repainting what you actually clicked.
Flattening a blotchy or fuzzy area into one clean color
The second job is the one people rarely realise a tool can do. A scanned logo, a screenshot, or especially an AI-generated image often has an area that should be one color but is really a fine mix of many — you can see the blotchiness when you zoom in. Click anywhere in that area, raise the match setting until the whole patch lights up, and set the New color to the clean tone you want (on your first click it is helpfully pre-filled with the color you clicked, so you can often just leave it). At 100% Strength every one of those scrambled pixels becomes exactly the same value: a perfectly even, homogeneous area where there used to be noise. It is the fastest way to tidy up a shape that looks almost-but-not-quite solid.
The two dials: Color match and Strength
Color match decides how different a pixel may be from the one you clicked and still be selected. Too low and you leave a rim of slightly-off pixels behind; too high and the selection spills into parts you wanted to keep. Start low and raise it a step at a time. Strength then decides how far the selected pixels move toward the new color. At 100% they become the new color exactly — flat and uniform, which is what you want for a clean background or a homogeneous fill. Below 100% the original light and shade is preserved and merely tinted, so a textured blue backdrop becomes a textured red one instead of a flat slab. For a natural-looking recolor of something with visible shading, 70–90% often reads better than a hard 100%.
What you get, and where it goes next
The result downloads as a PNG so no color detail is thrown away by re-compression, and it carries convertburda.com in its metadata. This tool only ever changes color — it never adds or removes transparency, so your image stays fully opaque. If what you actually want is to remove the background rather than repaint it, use Image transparency instead, the twin of this tool; and if you want to draw, add layers, crop to a shape or edit several things at once, open the same photo in Photo Studio, where this same recolor lives alongside every other edit. Everything here runs on your own device — the picked image is never uploaded — so it is safe for a client's confidential artwork or an unreleased product shot.
How Color Replacer works
You click a spot, and a flood fill spreads outward from it, taking in every neighbouring pixel whose color is within the match setting of the one you clicked — and stopping wherever the color changes too much. That is why it follows the true outline of a background or a shape instead of a rectangle, and why an unrelated detail of the same color elsewhere in the image is left untouched unless it is actually joined to your click. Each selected pixel is then blended toward your chosen color by the Strength amount: 100% replaces it exactly, less keeps its original shading. It is the same selection engine as Image transparency, pointed at recoloring instead of erasing.
How is this different from Image transparency?
They share the same click-to-select engine but do opposite things. Image transparency makes the selected color disappear (so whatever is behind shows through); Color Replacer paints it a new solid color and keeps the image fully opaque. Use transparency when you want to drop the background out entirely; use this when you simply want a different color there.
Is my image uploaded anywhere?
No — everything happens on a canvas in your browser. The picked image never leaves your device.
How do I change a background from, say, blue to red?
Load the image, click the blue background once, and raise "Color match" until the whole background is highlighted (orange tint). Set "New color" to red, keep Strength at 100% for a solid fill, and click "Replace color & download". If a few blue pixels near the edges are missed, raise the match a little or click those spots too; if the red starts bleeding into the subject, lower the match.
My logo's background is blotchy (it's an AI image) — can I make it one flat color?
Yes — that is exactly what Strength 100% is for. Click the blotchy area, raise "Color match" until the whole patch is selected, and every one of those slightly-different pixels is painted to the same single color, leaving a perfectly even area. If the blotchiness is extreme, do it in two clicks with a higher match, or clean the last specks afterwards in any paint program.
What file format do I get back?
A PNG, so the recolored image keeps its full quality with no extra JPEG compression. The image stays opaque — this tool changes color only, it never makes anything transparent.
