AVI to BMP Converter
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Supports: AVI
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Need help?How to Convert AVI to BMP
- Upload your AVI video — Click "+ Add Files" or drag and drop your AVI files.
- Choose frame extraction — Under "Frame Selection," pick "Specific Frame" and enter a timestamp in seconds, or choose "Multiple Screenshots" to extract frames at intervals from every 0.1 seconds to every 10 seconds.
- Adjust quality — Under "Image Compression," select "Quality Preset" (High to Low) or "Specific file size" in KB/MB. Note: BMP is uncompressed, so the primary size control is resolution.
- Set resolution — Keep original, scale by percentage (1–100%), pick a preset (4320p to 144p), or enter exact width/height.
- Convert and download — Click "Convert" and download your BMP images.
Why Convert AVI to BMP?
BMP (Bitmap) is an uncompressed image format that stores every pixel's exact color value — no compression artifacts, no quality loss. Extracting AVI frames as BMP produces pixel-perfect images ideal for scientific analysis, machine vision, medical imaging, forensic examination, and any workflow where compression artifacts are unacceptable.
While BMP files are significantly larger than JPEG or PNG (a 1920×1080 frame is ~6 MB as BMP vs ~200 KB as JPEG), the zero-compression guarantee makes BMP the format of choice for applications requiring exact pixel data. Legacy Windows software and embedded systems also commonly require BMP input.
BMP vs Other Formats for Frame Extraction
| Format | Compression | 1080p Frame Size | Quality Loss | Best For |
|---|---|---|---|---|
| BMP | None | ~6 MB | Zero | Scientific, forensic, legacy |
| PNG | Lossless | ~2–5 MB | Zero | Archival with smaller files |
| JPEG | Lossy | ~150–300 KB | Minimal | General sharing |
| AVIF | Lossy/lossless | ~60–100 KB | Minimal | Web optimization |
Frequently Asked Questions
Why extract as BMP instead of PNG?
BMP stores raw pixel data with zero processing — no compression algorithm is applied. While PNG is also lossless, it applies compression that could theoretically interact with downstream analysis tools. BMP is the safest choice for scientific, medical, and forensic applications where absolute data integrity is required.
Can I extract multiple frames as BMP?
Yes. Choose "Multiple Screenshots" and set the capture rate. Be aware that BMP files are large — extracting 100 frames from a 1080p video produces ~600 MB of BMP files.
How do I reduce BMP file size?
Since BMP is uncompressed, the only way to reduce file size is to reduce resolution. Scale by percentage (e.g., 50% halves dimensions and quarters file size) or pick a lower preset resolution. For smaller files with lossless quality, consider AVI to PNG instead.
What AVI codecs are supported?
XConvert handles AVI files with any codec including DivX, Xvid, MJPEG, H.264, MPEG-4, and uncompressed video.
Can I extract a frame at a specific timestamp?
Yes. Choose "Specific Frame" and enter the exact time in seconds. Decimal values work — 5.25 captures the frame at 5 seconds and 250 milliseconds.