图片转Base64
生成 DataURL、CSS 与 img 标签代码。
关于「图片转Base64」
它属于「格式转换」分类：批量图片格式互转，解码与编码都在浏览器完成。
完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。
相关关键词：图片转Base64、格式转换、base64、dataurl、在线工具、免费
如何使用「图片转Base64」
- 打开工具：打开「图片转Base64」页面，无需注册、无需安装任何软件。
- 准备输入：准备好要处理的内容或文件：文本可直接粘贴，文件可拖入页面（本工具属于「格式转换」）。
- 填入内容：把内容粘贴进输入框，或把文件拖入页面；也可以点击「示例」先填入样例数据试一下。
- 设置选项并处理：按需调整页面上的选项，然后点击处理 / 转换 / 生成按钮。
- 获取结果：处理完全在浏览器本地完成，结果可直接复制或下载，文件不会上传到任何服务器。
常见问题
- Base64 体积为什么比原图大？
- Base64 编码会比二进制大约膨胀 33%，仅适合小图标内联。
- 能转回图片吗？
- 可以，把 DataURL 直接作为图片地址即可；本站的 Base64 解码工具也能还原。
Image to Base64 (English)
Generate DataURL, CSS and img-tag code.
Belongs to “Converters”: Batch image format conversion, decoding and encoding in the browser.
Free, no sign-up; everything runs locally in your browser and files are never uploaded.
Keywords: Image to Base64, Converters, base64, dataurl, online tool, free
How to use it
- Open the tool：Open the “Image to Base64” page — no sign-up and nothing to install.
- Prepare the input：Prepare the content or file to process: paste text or drop a file onto the page (this tool belongs to “Converters”).
- Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
- Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
- Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.
FAQ
- Why is Base64 larger than the original?
- Base64 is ~33% larger than the binary, so it suits only small inline icons.
- Can it be converted back?
- Yes — use the DataURL as an image src; this site’s Base64 decoder can also restore it.
More tools in Converters
- Batch to JPG — Convert multiple images to JPG and pack them.
- Batch to PNG — Convert to lossless PNG, keep transparency.
- Batch to WebP — Convert to smaller WebP files.
- Batch to BMP — Export uncompressed BMP bitmaps.
- Batch to GIF — Convert static images to single-frame GIF.
- Batch to AVIF — Convert to high-compression AVIF (browser-dependent).
- HEIC Converter — Convert iPhone HEIC photos to JPG/PNG.
- SVG to PNG — Rasterize SVG to PNG at a given scale.
- Extract Audio from Video — Separate the audio track from a video and export WAV.
- Audio Converter — Decode and re-encode to WAV, change sample rate.