Image Effects

This subcategory gathers 14 free tools that need no account and change the look of an image in your browser. It helps create a mood, prepare a graphic visual, hide an area or test a rendering without dedicated software. Tools include Grayscale Image, Sepia Filter, Rasterize an image, Edge detection, Add grain and Add a vignette. Files stay in your browser when the tool page says so.

Choose by the look you want. Grayscale Image and Black and white remove color, while Sepia Filter, Duotone effect and Solarization effect play with tones or inversions. Invert colors creates a negative, Posterize an image and Reduce colors limit levels. Rasterize an image hides in blocks, Edge detection reveals borders, Relief effect engraves the surface. Add grain and Add a vignette finish a mood. For plain black and white, start with Grayscale Image or Black and white threshold.

How to use

  1. Begin with the look you want: Grayscale Image or Black and white threshold for black and white, Sepia Filter or Duotone effect for a strong tone.
  2. To stylize, test Rasterize an image, Posterize an image or Reduce colors, then compare with Edge detection or Relief effect for a graphic result.
  3. Add mood at the end with Add grain or Add a vignette, without hiding the main subject or overloading the edges.
  4. If you invert values, use Invert colors or Solarization effect, then check that the result stays readable on a small screen.

Frequently asked questions

What is the difference between grayscale and black and white threshold?

Grayscale Image turns a color image into black and white with shades. Black and white threshold and Black and white push the conversion to a precise threshold, giving a harder image without mid-grays. For a soft result, start with grayscale. For a graphic effect, use a threshold.

How can I hide part of an image with an effect?

Rasterize an image stylizes in blocks and can hide a sensitive area. Adjust the effect before exporting. For a different look, test several pixelation levels. The image stays in your browser and no account is needed.

Can I stack several effects on the same image?

Yes, but move step by step. Start with Grayscale Image or Sepia Filter, then add Add grain or Add a vignette. Avoid piling Rasterize an image on top of Edge detection, because the subject may become unreadable. Check each result before export.

Which effect hides an area without blur?

Rasterize an image is suited to hide content in blocks. If you want a more graphic result, Posterize an image or Reduce colors may be enough. Check that the sensitive information is no longer recognizable at the intended display size.

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