How to Convert ICO to RAS — Quick & Free
Fast, instant ICO to RAS conversion. No signup required. Just drop your .ico file and get .ras in seconds.
Batch Settings
在数字世界里，图片格式的转换是家常便饭。您手中的ICO小图标，可能承载着网站的独特标识，或是桌面应用的个性化象征。但当这些精巧的ICO图标需要适配到某些专业图形软件、老旧系统，或者在特定的游戏开发、图像处理流程中，您会发现它们可能无法直接使用。这时候，将ICO转换为RAS格式就显得尤为重要。RAS，作为一种历史悠久且兼容性良好的位图格式，在某些特定场景下依然发挥着不可替代的作用。我们的工具旨在帮助您无缝完成这一转换，确保您的图标在不同平台和应用中都能被正确识别和高效利用，无论是为了专业设计需求，还是为了兼容旧版软件，都能轻松搞定，省心省力。
- 游戏开发中的贴图适配
- 旧版图形工作站兼容性
- 专业图像处理软件导入
在大陆和台湾地区，虽然ICO和PNG等现代格式更为主流，但RAS在一些历史较久的工程项目或特定行业软件中仍有应用，例如某些工业控制系统或早期游戏引擎可能会用到。
About ICO to RAS Conversion
Short answer: yes, you can convert ICO to RAS online for free, and quality is well preserved with the right settings. Just upload your .ico file to CocoConvert, pick RAS as the output, and click Convert. The whole process takes seconds.
Now for the details. ICO is the icon format used for website favicons and Windows application icons. RAS is a widely used file format. Converting between these two formats lets you convert between formats quickly.
Your ICO file is decoded and re-encoded as RAS. Converting ICO to RAS maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert ICO to RAS
- 1
1. Upload ICO
Drop your .ico file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select RAS
Choose .ras from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .ras file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert ICO to RAS
Your ICO file is decoded and re-encoded as RAS.
Your ICO file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in RAS format
The converted file is ready for download
Format Comparison
ICO
.ico file
| Extension | .ico |
| MIME Type | image/x-icon |
| Category | Image |
RAS
.ras file
| Extension | .ras |
| MIME Type | image/x-sun-raster |
| Category | Image |
Should You Convert ICO to RAS?
When to Convert
- ✓When you need a RAS file
Frequently Asked Questions
Is ICO to RAS conversion free?
Yes. CocoConvert offers free ICO to RAS conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is ICO to RAS conversion?
Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded ICO file and the converted RAS file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting ICO to RAS lose quality?
Converting ICO to RAS maintains high quality with CocoConvert's optimised encoder settings.
Can I convert RAS back to ICO?
Yes, CocoConvert supports RAS to ICO conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.