Updated
Pick grayscale, sepia, invert or blur, drop your images, and download the results. Everything runs in your browser, so it is free, needs no account and sends nothing to our servers.
How to add an effect to images
- Drag a photo, or a whole folder of them, onto the drop zone.
- Select the effect you want from the four on offer.
- For blur, set a radius between 1 and 100, or keep the default of 5.
- Click Apply and download the results one by one or as a ZIP.
What each effect does
Grayscale takes the color out and keeps the brightness. Red, green and blue are weighted the way human eyes perceive them, so the picture looks natural instead of flat. It suits pages headed for a black and white printer, and it gives a mixed set of photos one consistent style.
Sepia starts from grayscale and adds a warm brown tint, the look of an old family photograph.
Invert swaps every color for its opposite. Black turns white, and blue turns orange. Run a scanned film negative through it and you get a positive, and a dark diagram becomes easy to read once printed.
Blur makes the entire image soft, and the radius decides by how much. A light blur makes a quiet background for text. A strong one leaves faces and writing unreadable.
Blur is not safe redaction
Do not rely on blur alone for anything sensitive, such as a license plate or an account number. A strong blur hides detail from the eye, but a gentle one can sometimes be undone. For anything sensitive, paint a solid box over the area in an image editor.
Quality and formats
The effect changes pixels on purpose, but width and height stay as they were. JPG, PNG, GIF, WebP, TIFF and BMP all work, and every file keeps its format and any transparency. PNG files stay lossless, and JPG and WebP get re-saved at high quality.
Grayscale often trims the file a little, since there is less color information to store.
Many images at once
Effects run on your own device, so there is no batch cap and no daily allowance. Drop a folder, apply one effect to every picture, and take them all as a single ZIP. Speed depends on your computer or phone, and each image can be up to 50 MB.
To combine an effect with other work, add it as a step in a pipeline, next to resizing or compression. The pipeline runs the whole recipe over a folder. It is free to try on up to 3 files, and Pro runs it on up to 500.
FAQ
Can two effects be stacked?
Yes, one after another. Download the first result and feed it back in with the second effect, for instance a gentle blur on top of grayscale.
Is the color version lost?
No. Your original file is not changed, so hold on to it if you may want the colors back.
Are my photos uploaded?
No. Your browser applies the effect itself, and the images never reach our servers.
Which blur radius should I start with?
Start from the default of 5. Keep it light for a background behind text, and go much higher when faces or writing must become unreadable.