BMP 到 PNG 转换器 — 快速免费
BMP to PNG converts uncompressed bitmap pixel data into a lossless, compressed PNG with optional alpha, keeping sharp edges and preserving colors.
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支持所有主要格式
How BMP to PNG Conversion Works
BMP is an image format: it stores uncompressed pixel data in a simple row-by-row grid, resulting in large file sizes but zero quality loss. PNG is an image format that uses lossless DEFLATE compression and supports a full alpha-transparency channel, preserving every pixel exactly as encoded. This conversion changes the file's encoding, compression method, and supported feature set. The output is pixel-accurate: no further quality is lost beyond what the source already encoded. Converting between these two formats is common when the source application does not support PNG natively or when the target platform only accepts PNG. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and automatically deleted after 24 hours.
Sources & specifications
如何将 BMP 转换为 PNG
按照以下简单步骤，几秒钟内将 BMP 文件转换为 PNG 格式
步骤 1
Upload your BMP file to the converter
步骤 2
Select the PNG output format and keep the default lossless settings
步骤 3
If available, enable alpha/transparent handling for images with transparency data
步骤 4
Start the conversion and wait for the PNG to finish generating
步骤 5
Download the resulting PNG and verify dimensions and color fidelity
平均转换时间: 不到2分钟
转换可视化预览
源文件
转换中...
输出文件
此可视化展示了从 BMP 到 PNG 格式的典型转换过程，包括预期的大小缩减和质量保持。
选择转换质量
为您的 BMP 到 PNG 转换找到质量与文件大小的完美平衡
低质量
文件最小，基础质量
中等质量
大小与质量平衡
高质量
文件更大，质量出色
最高质量
文件最大，最佳质量
tips_and_updates质量选择技巧
何时使用低/中质量：
- •网页上传和社交媒体分享
- •有大小限制的电子邮件附件
- •快速预览和缩略图
何时使用高/最高质量：
- •专业打印和出版
- •归档和长期存储
- •当质量比大小更重要时
图片提示：中等质量为照片提供最佳平衡。对于带文字的图形，使用高或最高质量以保持清晰度。
为什么要将 BMP 转换为 PNG？
了解将 BMP 文件转换为 PNG 格式的优势
Lossless PNG compression reduces file size versus BMP’s uncompressed storage
Preserves crisp pixel art and sharp edges without JPEG-style artifacts
Supports transparency (alpha channel) if your BMP includes masked/used alpha data
Keeps exact color values for editing, re-saving, and repeated processing
Improves cross-platform compatibility for viewing and web workflows
附加功能
热门使用场景
专业人士如何使用我们的 BMP 到 PNG 转换器
Convert a BMP screenshot to PNG for smaller, lossless archiving
快速轻松地将 BMP 转换为 PNG。
Prepare pixel-art assets for web use while keeping exact colors
快速轻松地将 BMP 转换为 PNG。
Export scanned images from BMP into PNG for cleaner downstream edits
快速轻松地将 BMP 转换为 PNG。
Create transparent overlays/icons when the source is a BMP with alpha or mask
快速轻松地将 BMP 转换为 PNG。
Convert legacy BMP textures for use in software that prefers PNG
快速轻松地将 BMP 转换为 PNG。
专业人士信赖
Frequently Asked Questions
Everything you need to know about converting BMP to PNG
Still Have Questions?
Our support team is here to help you with any questions about BMP to PNG conversion.
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