JPG to BMP Converter

Export JPG photos as uncompressed BMP for legacy tools and devices. Free in your browser — no sign-up, no watermarks.

Drop your JPG files here

or click to browse — Select multiple files for batch conversion

jpgjpegjfif

⚡ Instant — conversion starts the moment you add files. No sign-up, no watermarks. Why FileHugger

🔍 How your file is processed

Runs: In your browser on this page
Engine: Your browser's own image decoder and canvas encoders (AVIF included); HEIC decodes via a bundled JavaScript decoder (Emscripten-compiled libheif); GIF, BMP and ICO are written by our own encoders
Max input: 512 MB per file
Your file: Processed in this browser tab — the file is not uploaded. Converted results are kept in this browser's local storage for up to two hours so their matching download page can show them; expired results are removed on the next site visit. Nothing is stored on our servers.
Good to know: Converting to JPG or lossy WebP applies the quality level you choose. JPG and BMP have no transparency, and our GIF encoder does not carry transparency either — transparent areas are flattened to the background for all three. Animated GIF input is read as its first frame.

Full security & file-privacy details →

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How to convert JPG to BMP

Click Choose files (or drag & drop) and select one or more JPG files. You can also paste an image from your clipboard.
No settings needed for this conversion — the defaults handle everything.
Press Convert to BMP. Each file is converted with a live progress indicator.
Open the download page to save your files individually or grab everything as a single ZIP.

Why convert JPG to BMP?

Certain embedded systems, label printers, CNC/laser tools and old Windows programs require plain BMP input. This tool decodes your JPG and writes a standard 24-bit uncompressed bitmap that such software reads without complaint.

What this tool preserves — and what it changes

✓ Preserved

The decoded pixels exactly as they are — BMP adds no compression, so nothing further is lost after the JPG is read
Dimensions — the bitmap is written at the JPG's exact pixel size

↺ Changed

File size explodes: the output stores three raw bytes per pixel (24-bit, rows padded to 4 bytes), typically 10× the JPG or more
The JPG's compression artifacts are copied faithfully into the bitmap — raw storage does not mean restored quality

Known limits & edge cases

The writer produces a standard bottom-up 24-bit Windows bitmap — the plainest possible BMP, which is exactly what legacy tools and devices expect
Multi-hundred-megapixel photos are over the 100 MP processing limit — the error tells you to resize first

Engine: Your browser's own image decoder and canvas encoders (AVIF included); HEIC decodes via a bundled JavaScript decoder (Emscripten-compiled libheif); GIF, BMP and ICO are written by our own encoders. These statements describe the engine as shipped on 2026-10-02 — behaviour changes are recorded in the changelog.

About the formats

What is a JPG file?

JPG is the most widely used photo format on the web. It uses lossy compression that keeps file sizes small while preserving the detail that matters in photographs. Nearly every device, browser, app and website accepts JPG, which makes it the safest choice for sharing and uploading pictures. It does not support transparency or animation.

What is a BMP file?

BMP is an uncompressed raster format created by Microsoft for Windows. Every pixel is stored raw, so files are large but completely lossless and extremely simple to read, which is why old software, scanners, embedded devices and some industrial tools still produce or require BMP files. Converting BMP to JPG or PNG typically shrinks the file by 90% or more.

JPG vs BMP at a glance

	JPG	BMP
Type	Raster image	Raster image
Compression	Lossy	None (uncompressed)
Transparency	No	No
Animation	No	No
Typical use	Photos, web images, email attachments	Legacy Windows software, scanners, devices

Feeding software that predates the modern web

A surprising amount of working machinery speaks BMP and nothing else: embroidery digitizers, engraving and CNC software, label printers, POS systems, PLC touch-panels and Windows tools from the 90s that are still quietly running production lines. When such a system rejects your JPG, converting it to BMP produces the plain, uncompressed pixel grid these programs were written to read.

The output is exact — BMP is lossless, so every pixel of the decoded JPG lands unchanged — but the file will be many times larger, since all of JPG’s compression is unwrapped. Check the receiving software’s limits before feeding it a huge image: many legacy tools also cap resolution or expect specific dimensions, so pairing this conversion with the resize tool on this site often saves a second round trip.

Frequently asked questions

Is this JPG to BMP converter free?

Yes — completely free, with no sign-up, no watermarks and no daily quota. Processing happens in this browser, so the practical limit is the memory available on your device.

Can I convert multiple JPG files at once?

Yes. Select or drop as many files as you like — each one is converted in sequence with its own progress status, and you can download the results individually or all together as a ZIP archive.

Will I lose quality converting JPG to BMP?

No — BMP is a lossless format, so the converted file reproduces the decoded image pixel for pixel. No additional compression artifacts are introduced by the conversion.