Is this JPG 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 JPG 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.

Why does some software only accept BMP and not JPG?

BMP is the native Windows bitmap format and has been supported since Windows 1.0. Very old software, certain embedded systems, and some industrial imaging tools were built before JPEG support was standard and only read BMP.

Does converting JPG to BMP improve quality?

No. Any compression artifacts already in the JPEG are baked in. BMP stores those pixels uncompressed but cannot recover detail the JPEG codec discarded.

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.

JPG to BMP Converter — Free, Online, No Upload

How to convert JPG to BMP online

1
Drop your JPG file
Drag and drop your Joint Photographic Experts Group 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 Joint Photographic Experts Group → 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.

JPG vs BMP: format overview

JPG

Joint Photographic Experts Group

Joint Photographic Experts Group · 1992

Compression: lossy
Color depth: 8-bit
Transparency: No

✓ Universal compatibility — supported everywhere
✓ Excellent compression for photos
✗ Lossy — each save degrades quality

BMP

Bitmap Image File

Microsoft · 1987

Compression: none
Transparency: No

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

JPG magic bytes: FF D8 FF

BMP magic bytes: 42 4D

Why convert JPG to BMP?

JPEG is the dominant format for photos on the web and in consumer devices, but it uses lossy compression — which makes it a poor input for software that expects raw, unmodified pixel data. Some older Windows applications, legacy printing systems, and embedded tools refuse JPEG entirely or produce unexpected results because of how JPEG's DCT blocks interact with their rendering pipelines.

BMP is Windows' native uncompressed image format and is accepted by virtually every piece of software that runs on Windows, regardless of age. Windows Paint, older versions of Microsoft Office, certain CNC machine controllers, and some label-printing software specifically require BMP. It's also used in some game development workflows for texture atlases when the engine doesn't support modern formats.

The trade-off is file size. A JPEG photo compressed to 500 KB can easily become a BMP of 5–10 MB or more, because BMP stores full, uncompressed pixel data. Also note that if the JPEG was already compressed, the BMP won't recover the detail that JPEG discarded — it just stores the compressed pixels without further loss. You're getting lossless storage of whatever the JPEG contained, not a restoration of original quality. Convert to BMP when a specific tool requires it; for most other uses, JPEG or PNG remain far more practical.

Quality & file size: JPG to BMP

Typical file sizes: JPG 2–5 MB → BMP 35–40 MB.

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

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

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

Frequently asked questions

Privacy: how FormatDrop handles your files

Your JPGfiles 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.