Is this WEBP to BMP 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.

My image editor won't open WebP — will BMP work?

Almost certainly yes. BMP is the oldest Windows image format and is supported by virtually every Windows application ever made, including very old editors that pre-date WebP by decades.

Is WebP to BMP conversion lossless?

If your WebP was a lossless WebP, the BMP output is pixel-perfect. If the source was a lossy WebP, the already-compressed pixels are stored in BMP without further loss, but original detail cannot be recovered.

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 BMP Converter — Free, Online, No Upload

How to convert WEBP to BMP 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 → Bitmap Image File entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your BMP
Your Bitmap Image File 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 BMP: 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

BMP

Bitmap Image File

Microsoft · 1987

Compression: none
Transparency: No

✓ No compression — original pixel data preserved
✓ Universal Windows support

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

BMP magic bytes: 42 4D

Why convert WEBP to BMP?

WebP is a modern Google-developed image format supported by all major browsers, but it's largely invisible to older desktop software. Windows 7 and earlier don't display WebP thumbnails in Explorer without a codec installed. Many legacy Windows applications — older Office versions, classic photo editors, industrial software, CNC tools — simply don't know what WebP is.

BMP is the Windows-native uncompressed format that has been supported by every version of Windows and virtually every Windows application ever written. If you're trying to use a WebP image in an older application that rejects it, BMP is the fallback that's almost guaranteed to work. It requires no codec, no plugin, and no software update — just open and use.

The file size penalty is severe. WebP's compression is very efficient; a 200 KB WebP can easily become a 10–20 MB BMP because BMP stores uncompressed pixel data with no compression. If WebP transparency is present (WebP supports full alpha channels), it converts cleanly to BMP — though BMP itself doesn't support transparency in most implementations, so transparent areas will be rendered as white or black. Use BMP only when a specific application requires it; for general compatibility, JPEG or PNG are much better choices.

Quality & file size: WEBP to BMP

Typical file sizes: WEBP 1–3 MB → BMP 35–40 MB.

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

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

Transparency: WEBP supports transparency. BMP does not support transparency — transparent areas become solid white.

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.