JFIF to ICO Converter
Got a logo or avatar that your browser saved as .jfif, and a site builder or Windows shortcut that wants an .ico? Upload it here and get one icon file holding five sizes, from 16 px for a browser tab to 256 px for a desktop shortcut.
Image Converter
or drop JPG, JPEG, JPE … files here ·
Max 95 MB per file· Up to 20 files· Deleted after 30 minutes
Files are processed on our servers and deleted after 30 minutes.
85 keeps photos visually identical to the original. Lower it only when you need a smaller file.
JPG, BMP and EPS have no transparency. Transparent pixels are filled with this color.
Hex color used behind transparent pixels, e.g. #FFFFFF.
This format holds a single image. Choose GIF or WebP output if you want to keep the animation.
A multi-size icon contains several resolutions in one file; browsers and operating systems pick the one they need.
Keep the original dimensions, or enter one side and the aspect ratio is kept.
Pixels for the side you chose above.
Percentage of the original dimensions.
sRGB is right for screens and the web. Keep the original for print workflows; grayscale discards color.
Metadata only, 0 keeps the original value. Printers and some portals read this number; it does not change pixel dimensions.
How to use this tool
- 1
Upload the .jfif file
Drop it on the upload area or pick it from your Downloads folder. Square artwork works best.
- 2
Keep All sizes, or pick one
Icon sizes starts at All sizes (16–256), which suits a favicon and most Windows uses. Choose a single size only when a program asks for exactly one.
- 3
Convert and save as favicon.ico
Press Convert to ICO and download the result. Rename it favicon.ico if it is going to the root folder of a website.
Can a .jfif image be turned into an icon file?
Yes. A .jfif is a normal JPEG under an older extension name, so it converts straight to ICO. You get one file with 16, 32, 64, 128 and 256 px versions. The picture stays opaque, because JPEG never stored transparency.
How a favicon source ends up as a .jfif file
You probably did not choose the .jfif extension. You right-clicked a logo on a company page, or a profile picture, picked Save image as, and Chrome or Edge on Windows suggested a name ending in .jfif. The browser asks Windows which extension belongs to the image/jpeg type, and on many machines the registry answers .jfif instead of .jpg. The data inside is plain JPEG either way.
The name goes back to the JPEG File Interchange Format, written by Eric Hamilton at C-Cube Microsystems in 1992 to define how JPEG data is stored in a file; it was later published as ITU-T T.871. An ICO is far older on the desktop: Windows 1.0 used icon resources in 1985, and Internet Explorer 5 made favicon.ico a web convention in 1999.
Theme settings and Windows shortcut dialogs ask for .ico, and even fields that accept JPEG often reject .jfif because they check the extension, not the content.
JFIF to ICO: what goes into the icon file
JFIF
JPEG File Interchange Format
JFIF is the original container specification for JPEG data, written in 1992 by Eric Hamilton at C-Cube Microsystems. A .jfif file holds exactly the same lossy JPEG image data as a .jpg file; only the extension differs. Windows and some browsers save downloaded web images with the .jfif extension, which confuses apps and upload forms that only accept .jpg. Quality, size and limitations are identical to JPEG: no transparency, no animation, and some loss on every re-save. Most image viewers open it, and simply renaming it to .jpg usually works.
- Compression
- Lossy
- Transparency
- No
- Animation
- No
- Introduced
- 1992 · C-Cube Microsystems (Eric Hamilton)
ICO
Windows icon
ICO is the Microsoft icon format used for Windows program icons and website favicons. One .ico file can contain several images at different sizes, such as 16×16, 32×32, 48×48 and 256×256 pixels, so the system can pick the best fit. Each image can be stored as a bitmap or as PNG data and supports full alpha transparency. ICO is not meant for photos or large artwork. Browsers, Windows and most icon editors can read it.
- Compression
- Lossless
- Transparency
- Yes
- Animation
- No
- Introduced
- Microsoft
A .jfif becomes an ICO when the only copy of a logo or profile picture is a file the browser saved from a web page, and a favicon slot or a Windows shortcut accepts nothing but .ico.
- 16, 32, 64, 128 and 256 px in one ICO
- 5 sizes
- per batch, each up to 95 MB
- 20 files
- until uploads and icons are deleted
- 30 min
Square crop and a solid background before converting
A .jfif saved from the web is rarely icon-shaped. Logos often come as wide headers and photos as 4:3 frames. Crop to a square first and leave a small margin of about 10% on each side, so a round mask in a taskbar or a browser tab does not clip the edges. The guide to cropping an image to a ratio walks through choosing the frame.
Because JPEG has no alpha channel, the background color is baked in. On a dark tab strip or desktop the icon shows as a light square. If the brand owner can send a PNG or SVG of the logo, use that instead.
Finally, check the detail at 16 px. Words, thin outlines and small faces disappear at that size. A single initial, a bold symbol or the central part of a badge survives much better. If you only need a lossless copy for editing rather than an icon, JFIF to PNG is the better route.
JFIF to ICO questions
Does the converter care that my file ends in .jfif rather than .jpg?
No. A .jfif file holds ordinary baseline JPEG data with a JFIF header, so it is decoded exactly like a .jpg.
Why does my new icon have a white box around the logo?
The box was already in the .jfif. JPEG data has no transparency, so whatever color surrounded the logo when it was saved, usually white, is part of the picture. The ICO keeps it. To get a see-through icon you need a source with an alpha channel, such as a PNG export of the logo, run through PNG to ICO 256x256 or the multi-size PNG converter.
My .jfif is a wide banner. What will the icon look like?
Icon slots are square, so a wide picture ends up either squeezed or surrounded by empty space, depending on the program showing it. Cut a square around the part you want with crop image and convert that square instead.
Can I put the ICO from a JFIF on a Shopify or WordPress site?
WordPress asks for a Site Icon of at least 512 × 512 px in the Customizer and builds its own sizes, so upload a large square image there rather than an ICO. If your theme or host lets you place files in the site root, favicon.ico at that location is still requested by many browsers automatically.
Will JPEG artifacts from the .jfif show up in the icon?
At 16 and 32 px they almost always vanish, because many source pixels are averaged into each icon pixel. At 256 px, blocky edges around text can remain if the .jfif was saved at low quality.
How large does the .jfif need to be for a crisp 256 px icon?
At least 256 × 256 px of the area you keep after cropping. Smaller images are scaled up and look soft at 256 px.
More ways to make an icon
- JPG to ICO ConverterConvert a JPG or JPEG to an .ico file with 16, 32, 64, 128 and 256 px sizes inside, for a website favicon or a Windows shortcut. No account needed.
- PNG to ICO ConverterChange PNG to ICO online: one .ico file holding every size from 16 to 256 px, transparency kept. For favicons and Windows shortcuts. Free, no account.
- Image to ICO ConverterTurn any image into a multi-size .ico for a favicon or Windows shortcut. Accepts PNG, JPG, SVG, WebP, HEIC and more; 16 to 256 px in one file.
- JFIF to PNG ConverterConvert .jfif images to PNG so the next edit adds no new compression. Batches of 20, 95 MB per file, color profile kept, files deleted after 30 minutes.
- PNG to ICO 256x256 ConverterMake a 256 × 256 ICO from a PNG for Windows Extra large icons, app installers and Electron builds. Transparency kept, one size per file, no account.
- ICO to PNG ConverterConvert .ico files to PNG with the transparent background kept. Pulls the largest image stored in the icon, so favicons and Windows icons come out sharp.