免费设计工具
无需注册。使用这些工具检查无障碍性、预览 Lottie 动画、生成渐变、转换单位和创建配色方案。
Contrast Checker
Free WCAG 2.1 color contrast checker. Test your text and background colors against AA and AAA accessibility standards. Get contrast ratio and fix suggestions instantly.
Color Converter
Convert colors between HEX, RGB, HSL, and OKLCH. Generate complementary, analogous, and triadic palettes. Export as CSS variables or Tailwind config.
Gradient Generator
Free CSS gradient generator with live preview. Create beautiful linear, radial, and conic gradients visually. Adjust colors, stops, and angles, then copy production-ready CSS code instantly.
Color Info
Look up any hex color code for detailed conversions (RGB, HSL, OKLCH), WCAG contrast ratios, shades, tints, and the closest CSS named color.
Lottie Preview
Free online Lottie preview tool. Upload .json or .lottie files to view, test, and check animations. Inspect frame rate, dimensions, and duration. Works as a Lottie viewer, checker, tester, and JSON animation player.
Lottie to GIF
Convert Lottie JSON animations to GIF or WebM (VP9) right in your browser. Set resolution, frame rate, and quality — then download. No upload to servers, fully private.
Lottie to dotLottie
Convert Lottie JSON files to the optimized dotLottie (.lottie) format. Smaller file size, same quality. Works entirely in your browser — no upload required.
专注一件事，并把它做好。
我们每天都在用这些工具打磨 MiroMiro。所以我们按自己理想中的样子把它们做了出来——快速、私密、不啰嗦。
真正免费
转换 3 次后不会弹注册墙，没有升级弹窗，下载也不用留邮箱。你需要的工具，一键即可使用。
在你的浏览器中运行
每一次转换、预览和检测都在本地完成。你的颜色、文件和输入内容绝不离开你的设备。就这么简单。
可分享的链接
每个工具都会把你的输入编码进 URL。把链接发给同事、放进 bug 报告、粘贴到 Slack——他们打开就能看到同样的结果。