Grayscale FilterInstant Preview100% Private

Drop an image to convert to grayscale

PNG, JPG, WebP supported

FAQ

How does the grayscale conversion work?
We use the Canvas API grayscale filter to remove all color information from the image.
Will it reduce file size?
Slightly, since grayscale images have less color data.
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About Grayscale

Grayscale was built for the moment you just need to handle this task and move on — no signup, no upload to a third-party server. Processing runs locally in your browser using modern Web APIs. Nothing is uploaded, nothing is logged, and there is no quota to worry about for casual use. It pairs naturally with the other utility utilities here when you need to chain a quick workflow.

When you'd reach for Grayscale

  • You need to handle a one-off task right before a meeting and don't have time to install anything.

    Anyone working remotely on a borrowed or restricted machine.

    Open the page, get the result, paste it into your doc — under a minute.

  • You're on a public or shared machine and don't want to leave traces of what you're working on.

    Travelers, contractors, anyone working from a friend's computer.

    Nothing is uploaded, nothing persists if you're not signed in.

  • You're cleaning up a folder of files that accumulated over a project and need to standardize them.

    Designers, writers, and developers wrapping up deliverables.

    Drop each file in, copy the output, move on.

  • You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.

    Marketers and ops people whose primary tool is metered.

    Stay productive without burning credits.

Frequently asked about Grayscale

Are my files uploaded to a server when I use Grayscale?
Grayscale processes everything in your browser using local APIs. Your files never leave your device.
Is Grayscale really free?
Yes — Grayscale is free for unlimited personal use, with no account required and no watermark on the output.
What browsers does Grayscale support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Will Grayscale change my original file?
Never. Grayscale only reads your input file and produces a new output file.
Can I use Grayscale commercially?
Yes. The output of Grayscale belongs entirely to you, with no licensing restrictions.