WWebToolSolutions
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Convert image to black and white Online — Free, No Signup

Convert image online in seconds. Supports JPG, JPEG, PNG, WEBP. Free, no watermark, no signup. Files are auto-deleted after 24 hours — fully private.

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Choose a file or drag it here

.jpg, .jpeg, .png, .webp · max 50 MB

Your files are auto-deleted within 24 hours. This tool is included in the free quota.

Why use this tool?

Convert image should be a 10-second job, not a 10-minute one. Most desktop apps want an installation, ask for an email, or stamp a watermark on the result. This tool does none of that — open the page, upload, get your black & white image, move on.

It runs from your browser, so you don't need to trust an unknown program with your files. The actual processing happens on our servers under a tight retention policy: files are auto-deleted within 24 hours and we never read, share, or train models on them.

How to convert image

  1. Upload your JPG, JPEG, PNG, WEBP (drag & drop or click to browse).
  2. Click Convert and wait a few seconds.
  3. Preview the result on the page and click Download to save it.

That's it — no signup, no email, no waiting for an account verification.

Features

  • Free for everyone — 3 jobs per day without signing in, more with an account.
  • Privacy-first: your files are deleted within 24 hours and never shared.
  • Fast — most jobs finish in under 10 seconds, right in your browser.
  • Works with JPG, JPEG, PNG, WEBP.
  • No watermark on the output, ever.
  • Mobile-friendly — runs on any modern phone or tablet browser.

Tips & best practices

Prepare a product photo for an e-commerce listing (Shopify, Etsy, Amazon).

Create a profile or banner image in exact pixel dimensions.

For social media banners, design at 2× the target resolution to look crisp on retina screens. WebP gives ~30% smaller file size than JPEG at similar quality — useful for web pages.

Common use cases

  1. Prepare a product photo for an e-commerce listing (Shopify, Etsy, Amazon).
  2. Create a profile or banner image in exact pixel dimensions.
  3. Reduce image weight before sending in chat or email.
  4. Resize photos for a CMS that has strict upload limits (WordPress, Ghost).

Related tools

Frequently Asked Questions

Do I need to sign up?

No. You can use the tool as a guest, no account or email required. Sign-up is optional and gives you a higher daily quota.

Are my files encrypted in transit?

Yes. All uploads and downloads use HTTPS (TLS). Storage is private; only signed URLs let you access your result.

What file formats are supported?

This tool accepts .jpg, .jpeg, .png, .webp. The output is delivered as .png.

What is the maximum file size?

Up to 50 MB on the free plan. Paid plans allow much larger files.

Does it work on mobile?

Yes — the tool runs in any modern browser on phone, tablet or desktop. No installation required.

Where can I download the result?

When the job finishes, a download button appears on the page. The link is valid for 24 hours; you can also re-download from your account history if signed in.