Convert BMP to AVIF

BMP to AVIF converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

BMP

BMP (Bitmap) is a simple, largely uncompressed raster image format native to Windows. BMP stores pixel data with optional Run-Length Encoding, making it trivial to read and write, but produces very large files. It remains useful as an intermediate, loss-free working format.

Developer: Microsoft
Initial release: 1985
Compression: Uncompressed
Color depth: up to 32-bit
Transparency: Yes
Animation: No

Best for

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

Pros

+Trivial to read and write
+Lossless and uncompressed
+Supports up to 32-bit color
+No decoding complexity

Cons

−Very large file sizes
−No compression by default
−Not suited for web
−No modern features like animation

AVIF

AVIF (AV1 Image File Format) is a modern, royalty-free image format based on the AV1 video codec. It delivers dramatically better compression than JPEG and PNG — often halving file sizes — while supporting high dynamic range (HDR), 10+ bit color, and alpha transparency. AVIF is supported by Chrome, Firefox, and Android.

Developer: Alliance for Open Media
Initial release: 2019
Compression: Lossy or lossless
Color depth: up to 12-bit HDR
Transparency: Yes
Animation: Yes

Best for

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Pros

+Often halves file sizes vs JPEG and PNG
+Supports HDR and 10+ bit color
+Alpha transparency and animation
+Royalty-free and open

Cons

−Slower to encode than JPG
−Limited support in older browsers and tools
−Less editing software support
−Hardware decoding still maturing

How to convert BMP to AVIF

1
Select BMP files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose avif — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your avif file right away.

BMP vs AVIF

Property	BMP	AVIF
Compression	Uncompressed	Lossy or lossless
Transparency	Yes	Yes
Animation	No	Yes
Color depth	up to 32-bit	up to 12-bit HDR
Open format	Yes	Yes

When to use BMP vs AVIF

BMP

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

AVIF

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Use cases for BMP → AVIF

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images
Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Frequently Asked Questions

Is converting BMP to AVIF free?

Yes. This BMP → AVIF converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert BMP to AVIF?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my BMP files uploaded to a server?

No. Files never leave your device. The entire BMP → AVIF conversion runs locally in your browser, so your data stays private.

Can I convert multiple BMP files at once?

Yes — batch conversion is supported. Add as many BMP files as you like and convert them to AVIF in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting BMP to AVIF reduce the quality?

Because both formats use lossy compression, the AVIF output will not bring back any quality that has already been lost in your BMP file. Avoid repeated re-encoding to keep the best quality.

Will transparency be preserved when converting BMP to AVIF?

Yes. Both BMP and AVIF support alpha-channel transparency, so transparent areas of your file are kept unchanged in the AVIF output.

Will the converted AVIF file be smaller than the BMP?

Usually yes. Converting from a lossless or uncompressed format to a lossy one dramatically reduces file size. Typical savings range from 50% to 90%, depending on the quality setting you choose.

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert BMP to AVIF Quality Rating

4.8

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