Convert JPG to ICO
Choose your JPG file and get a ICO file in seconds. Nothing leaves your device.
Converter
- FilesOne or many, images and videos mixed
- FolderEvery matching file inside, subfolders included
- ArchiveZIP, RAR, 7z or TAR: convert the contents or the archive itself
Drop files, folders or archives here
Unsupported files are skipped. Nothing is uploaded.
Everything runs in your browser. Files are not uploaded.
About this conversion
A ICO file is usually larger than the JPG original; choose it for compatibility or editing rather than size.
Good to know
The file usually becomes larger.
Quality does not improve; artifacts of the source stay.
Icons are limited to 256 × 256 pixels; larger images are scaled down.
How it works
This conversion uses a compact WebAssembly codec that is loaded only when you select a file, and it runs in a background thread.
Your browser can
- Built-in image codecs
- Hardware video (WebCodecs)
- Multiple threads
- Create AVIF natively
If something is missing, the conversion takes a little longer but still works.
About JPEG (JPG)
JPEG is the most widely used photo format, trading some detail for very small files.
- Photos on websites
- Email attachments
- Social media uploads
About ICO (Windows Icon)
ICO is the icon format used for Windows programs and website favicons.
- Accepted as favicon by all browsers
- Supports transparency
- Can hold several sizes
Related conversions
Frequently asked questions
Are my files uploaded to a server?
No. The conversion runs entirely in your browser with local code. Your files never leave your device, and there is no upload.
Is there a file size limit?
There is no limit on our side, but your browser memory is. Images work for very large files; for videos, files above a few hundred megabytes can fail on devices with little memory.
Will the quality suffer?
That depends on the target format and settings. Use the quality option to balance size and detail; lossless targets keep everything the source contained.
Which browsers are supported?
Current versions of Chrome, Edge, Firefox and Safari. Fast hardware paths are used where available, with a compatible fallback otherwise.