Is this WEBP to ICO converter really free?

Yes. Up to 5 files at a time, no signup, no catch. The free tier adds a small watermark to image output — Pro ($9.99/mo or $49/yr) removes it, raises the file size limit to 500 MB, and unlocks unlimited batch conversion.

Are my files uploaded to a server?

No — and you can verify it yourself. Open DevTools → Network tab, then convert a file. You'll see zero upload requests. Everything runs right in your browser. We never see your files.

How long does conversion take?

Usually 1–3 seconds for a typical file. The very first conversion on a fresh page load may take 5–20 seconds while the converter engine loads — after that it's instant. Your CPU does all the work locally.

What is the file size limit?

Free: up to 10 MB per file, 5 files per batch. Pro: up to 500 MB per file, unlimited batch. If you're working with large videos or RAW photos, Pro is built for that.

Can I batch convert multiple WEBP files at once?

Yes — drop multiple files at once (or Ctrl/Cmd+click to select them) and they all convert in parallel. Free accounts handle up to 5 files per batch; Pro has no limit.

Will the image quality change after conversion?

It depends on the formats involved. Converting to a lossless format like PNG preserves every pixel exactly. Converting to a lossy format like JPEG or WebP applies compression — we default to 85% quality, which looks identical to the original for almost all images. You won't notice a difference unless you zoom in pixel-by-pixel.

Do you support batch image conversion?

Yes — drop multiple images at once and they all convert in parallel. Free accounts handle up to 5 at a time; Pro is unlimited. Download everything as a single ZIP when you're done.

Can I use a WebP with a transparent background to make a favicon?

Yes — transparency in the WebP is preserved in the ICO output, giving you a favicon with a transparent background that adapts to any browser tab colour.

What size should my WebP be before converting to ICO?

Use the largest available version of your logo, ideally at least 256×256 pixels. The converter scales down to the standard ICO frame sizes (16, 32, 48 px).

How private is this converter?

Completely private — by design, not policy. There is no upload endpoint. Files are processed right inside your browser tab and disappear the moment you close it. We collect only anonymous page-view counts; your file content is never seen or stored.

WebP to ICO Converter — Free, Online, No Upload

How to convert WEBP to ICO online

1
Drop your WEBP file
Drag and drop your Web Picture Format file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs Web Picture Format → Windows Icon Format entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your ICO
Your Windows Icon Format file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.

WEBP vs ICO: format overview

WEBP

Web Picture Format

Google (On2 Technologies acquisition) · 2010

Compression: hybrid
Color depth: 8-bit
Transparency: Yes

✓ 30% smaller than JPEG, 26% smaller than PNG
✓ Supports both lossy and lossless
✗ Not supported in some older apps

ICO

Windows Icon Format

Microsoft · 1985

Compression: lossless
Transparency: Yes

✓ Multiple resolutions in a single file
✓ Required format for Windows app icons and favicons

WEBP magic bytes: 52 49 46 46 xx xx xx xx 57 45 42 50

ICO magic bytes: 00 00 01 00

Why convert WEBP to ICO?

WebP has become a common output format for web graphics pipelines, image optimization services, and CDNs. If your logo or site icon was exported as WebP, you may need to convert it to ICO to use it as a favicon — browsers and operating systems still use ICO as the standard favicon container.

ICO bundles multiple image resolutions (16×16, 32×32, 48×48 pixels) into one file, letting the browser pick the appropriate size depending on the context: browser tab, bookmark bar, home screen shortcut, or Windows taskbar pinned site. Converting WebP to ICO handles both the format translation and the downsizing automatically.

For the conversion to look good, the source WebP should be a square graphic — a logo, icon, or simple mark. Photographs and complex scenes don't work well at icon sizes because the detail becomes unreadable at 16×16 pixels. Transparent backgrounds in WebP (WebP supports full alpha) translate cleanly into ICO's transparency support. After generating the ICO, validate it with a favicon checker or RealFaviconGenerator to confirm it renders correctly across Chrome, Firefox, and Safari before deploying it to production.

Quality & file size: WEBP to ICO

Typical file sizes: WEBP 1–3 MB → ICO 10–100 KB.

Both WEBP and ICO use lossy compression. We transcode at high quality settings (equivalent to ICO's recommended web quality) to minimize generational loss.

Color depth: WEBP supports 8-bit, ICO supports standard color.

Transparency: WEBP supports transparency. ICO preserves transparency.

Frequently asked questions

Privacy: how FormatDrop handles your files

Your WEBPfiles are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.