AVIF to BMP Converter
Convert AVIF files (released 2019 (AOMedia), Lossless + Lossy (AV1-based)) to BMP (None (uncompressed) or RLE, typically Very large — pixel-by-pixel storage). Runs in your browser — no upload, no signup.
Based on 12,431+ conversions delivered
The thing most people want to know about converting AVIF to BMP is what happens to quality. Here's the honest version: AVIF is Lossless + Lossy (AV1-based) and BMP is None (uncompressed) or RLE, so the move changes how the image is stored — transparency becomes Limited (32-bit BMP only) and animation support becomes No. In our sample set, BMP files ran about 3353% larger than the AVIF source. For most everyday conversions the visible difference is negligible and the compatibility or size gain is worth it; the comparison and pitfalls below flag the cases where it isn't, so you can decide with the facts in front of you.
Looking to programmatically convert AVIF to BMP?
Same engine, available as a JSON API. Drop a file or URL via REST and get the converted output back — no browser, no UI, no rate limits on paid tiers.
Sub-second response on common pairs
Webhook delivery for batch jobs
100+ format pairs supported
AVIF vs BMP — side-by-side
The numbers and capabilities at a glance, so you know what you're trading.
AVIF
- Year released
- 2019 (AOMedia)
- Compression
- Lossless + Lossy (AV1-based)
- Transparency
- Yes
- Animation
- Yes
- Browser support
- Modern browsers (~90% since 2023)
- Best for
- Bandwidth-critical pages with modern audiences
BMP
- Year released
- 1986 (Microsoft)
- Compression
- None (uncompressed) or RLE
- Transparency
- Limited (32-bit BMP only)
- Animation
- No
- Browser support
- Universal — read by every browser since the 90s
- Best for
- Legacy Windows tools, embedded devices, industrial scanners
Real AVIF → BMP file sizes
We ran a fixed set of sample images through this exact converter so you can see the typical size impact before converting your own files.
| Sample image | AVIF size | BMP size | Change |
|---|---|---|---|
| Photo | 17.4 KB | 192.1 KB | +1001% larger |
| Screenshot / UI | 746 B | 256.1 KB | +35058% larger |
| Logo / transparency | 2.2 KB | 256.1 KB | +11399% larger |
Measured on a 256×256 sample set with this converter on 2026-05-28. Real-world files vary with resolution, colour and content.
Heads up before converting AVIF → BMP
What changes — and what your conversion will cost — based on how AVIF and BMP differ.
Animation collapses to a single frame
AVIF can hold multiple frames in one file; BMP cannot. The conversion keeps only the first frame, so every loop, transition, or sprite sheet collapses into a still image. If the motion matters, pick an animated target (WebP, AVIF, GIF, APNG, JXL) — or extract frames separately first.
Higher bit depth gets clipped
AVIF stores image data at a higher bit depth per channel than BMP encodes by default. Subtle gradients, HDR highlights, and 16-bit print sources collapse into the narrower 8-bit range — the difference is invisible in most photos, but banding shows up in skies, soft skin tones, and low-key shadows. If you need the precision (retouching, print, raw archive), keep the AVIF source and convert a copy.
Embedded color profile gets dropped
AVIF can carry an embedded ICC color profile; BMP doesn't preserve one. Colour-managed pipelines (proofing, brand-accurate print, wide-gamut displays) interpret the missing profile as sRGB, which shifts hues on anything captured in Display P3 or Adobe RGB. If the colour math matters, convert the image to sRGB explicitly before exporting to BMP.
Best practices for AVIF → BMP
Concrete settings to pick before you convert AVIF to BMP.
- Always preview the BMP output before bulk-downloading — colour shifts, transparency surprises, and quality artifacts show up in the preview before they ship.
- Strip EXIF metadata if file size or privacy matters — camera GPS coordinates, timestamps, and serial numbers travel inside the image bytes by default.
- BMP is lossless, so quality settings don't apply — but you can still shave bytes by quantising the palette (pngquant for PNG, gif2webp for GIF) when the image has a limited colour count.
- Verify the alpha channel rendered as expected — premultiplied vs straight alpha and edge halos around antialiased pixels are the most common surprises when going to BMP.
- For web BMP delivery, encode in sRGB — wider colour spaces (Display P3, ProPhoto) render unpredictably across browsers and email clients.
- Converting to BMP silently drops EXIF/XMP metadata embedded in the source. That's a privacy win if the file is being shared, but a loss if you rely on capture date, GPS, or camera settings — copy what you need to a sidecar before converting.
When NOT to convert AVIF → BMP
Honest cases where this conversion is the wrong call — pick a different format or keep your AVIF source.
Skip if the file is bound for print
BMP is a delivery-grade web format. Print pipelines (offset, large-format, packaging) expect TIFF, PDF, or high-bit-depth PNG with embedded ICC profiles and a CMYK option. Converting AVIF to BMP for a print job will likely fail prepress checks — keep the original or convert to a print-friendly format instead.
The importance of a good image conversion
Why getting AVIF → BMP right matters more than you think.
Frequently asked
The basics everyone asks before dropping a file.
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