TIFF to ICO Converter: Free, Private, No Upload
Convert TIFF files to ICO in your browser. Lossless output, batch up to 20 files at once, no upload, no account, no watermark. Your files never leave your device.
- TIFF to ICO
- Batch up to 20 files
- No upload, no account
- Metadata stripped
- 1Add up to 20 images
- 2Pick from 18 formats
- 3Download or copy the code
Processed on your device. Your images are never uploaded, and metadata is stripped. How we keep it private
How do I convert TIFF to ICO for free?
Drop your TIFF files into the tool above, choose ICO as output, and download the result. Everything runs in your browser, so nothing is uploaded and there is no limit or watermark. It works on Windows, Mac, Linux, ChromeOS, iOS and Android — anywhere you have a modern browser.
- Price
- Free, no credits and no daily cap
- Account required
- No
- File uploaded to server
- No, processed locally in your browser
- Batch limit
- Up to 20 files at once
- Input format
- TIFF
- Output format
- ICO
- Best for
- ICO workflows, lossless quality, editing, printing
- Works on
- Chrome, Edge, Firefox, Safari, iOS and Android browsers
- Privacy
- No upload, no tracking, metadata stripped
- Output quality
- Lossless, exact pixels
How to convert TIFF to ICO
- 1
Drop your TIFF files
Drag up to 20 TIFF files onto the page or click to choose them. Everything runs in your browser.
- 2
ICO is preselected
Output is already set to ICO. Adjust quality, resize or batch if you want.
- 3
Download
Save each ICO, or download all of them together as a ZIP.
TIFF to ICO: what changes and when it makes sense
TIFF is a Tagged Image File Format. It is best known for archival quality, high bit depth and CMYK support. The main drawbacks are large files and no display support in most browsers.
ICO is an Windows icon format. It is best known for packing several sizes (16, 32, 48, 256 pixels) into a single file. The main drawbacks are a maximum size of 256 by 256 pixels and little use outside icons.
TIFF vs ICO at a glance
| Property | TIFF | ICO |
|---|---|---|
| Type | Container format | Container format |
| Compression | Flexible: uncompressed, lossless (LZW or ZIP) or JPEG-compressed | A container holding one or more bitmaps, each stored as BMP or PNG data |
| Transparency | Full alpha channel with soft edges | Full alpha channel with soft edges |
| Animation | No | No |
| Colour depth | 8, 16 or 32 bits per channel, with CMYK, layers and multiple pages | Up to 32-bit colour with an 8-bit alpha channel |
| Support | Supported by professional editors, scanners and print workflows. Safari is the only major browser that displays it | Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly |
| History | Created by Aldus (later Adobe) in 1986 for desktop publishing and scanning. Owned by Adobe since 1994. Remains the professional standard for print, archival imaging and medical imaging. | Introduced by Microsoft with Windows 1.0 in 1985. The modern 32-bit alpha version became standard with Windows XP (2001). Windows Vista (2007) added PNG compression inside ICO for icons larger than 48x48. |
What actually changes in this conversion
- Both TIFF and ICO are lossless, so the pixels come through unchanged.
- Transparency is preserved, including soft edges.
- Browser-based conversion works in 8-bit sRGB. Wide-gamut, 10-bit and 16-bit data are reduced. For colour-critical work, keep the original.
- ICO holds images up to 256 by 256 pixels. Larger sources are scaled down.
- EXIF, GPS and camera data are stripped on every conversion. That is good for privacy, but you lose capture dates.
About TIFF: history and technical details
Created by Aldus (later Adobe) in 1986 for desktop publishing and scanning. Owned by Adobe since 1994. Remains the professional standard for print, archival imaging and medical imaging.
Technical: Tag-based file structure with IFD (Image File Directory) entries. Supports CMYK, Lab, RGB, grayscale, bilevel. 8, 16, 32-bit depth. Multiple pages. Layers via extensions. Compression: none, LZW, ZIP, JPEG, PackBits.
Real-world size: A 300 DPI A4 scan is 25-50 MB as uncompressed TIFF. Same as PNG: 10-20 MB. As JPG at quality 90: 3-8 MB but with loss. Print workflows use TIFF because quality is preserved and CMYK is supported.
Popular tools: Adobe Photoshop, Adobe Illustrator, GIMP, ImageMagick, Capture One, Vuescan, SilverFast.
Alternatives: PNG (8-bit only, no CMYK), JPEG XL (future format), PSD (Photoshop native), PDF (for sharing).
About ICO: what you get
Introduced by Microsoft with Windows 1.0 in 1985. The modern 32-bit alpha version became standard with Windows XP (2001). Windows Vista (2007) added PNG compression inside ICO for icons larger than 48x48.
Technical: Container holds 1-65535 images. Each entry has a 16-byte directory: width, height, colour count, planes, bit count, data size, data offset. Images are BMP (DIB) or PNG. Max dimension 256x256. Typical Windows icons use 16, 32, 48, 64, 128, 256.
Real-world size: A 6-size favicon.ico is typically 15-40 KB. A single 256x256 PNG favicon is 8-15 KB. Modern best practice uses separate files for 16, 32, 180 (Apple), 192, 512 (PWA).
Popular tools: IcoFX, GIMP, Adobe Photoshop (with plugin), ImageMagick, Favicon Generator, RealFaviconGenerator.
Alternatives: PNG (single size, widely accepted), SVG (sharp at any size), favicon.ico (still needed for legacy).
Browser and software compatibility
TIFF: Supported by professional editors, scanners and print workflows. Safari is the only major browser that displays it. ICO: Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly.
ICO is meant for favicons and Windows icons. It is not a general-purpose image format.
Why people move away from TIFF
- Browsers other than Safari cannot display TIFF, so it is unusable on web pages.
- TIFF files are huge. A single scan can run to hundreds of megabytes.
- Email clients and chat apps often cannot preview TIFF at all.
Why people choose ICO
- Browsers and Windows still look for favicon.ico at the root of a site by default.
- One ICO file can carry several sizes, so tab icons, bookmarks and shortcuts all look sharp.
- Windows shortcuts and application icons expect ICO.
Common mistakes with TIFF
- Using TIFF for web images — browsers will not display it
- Assuming all TIFFs are lossless — JPEG-compressed TIFF exists
- Ignoring bit depth — a 16-bit TIFF converted to 8-bit loses tonal range
Best practices for keeping quality
- TIFFs often hold 16-bit or CMYK data. Browser conversion works in 8-bit sRGB, so bit depth is reduced and colour can shift. For colour-critical work, use Photoshop or ImageMagick.
- Start from a square image of at least 256 by 256 pixels and keep the design simple, since it will often be shown at 16 by 16.
- Keep a PNG or SVG copy. Modern browsers accept link rel="icon" pointing at PNG or SVG.
- Resize before converting if the image will be shown small. A 4000 pixel photo displayed at 800 pixels wastes bytes in any format.
- Check the result at 100 percent zoom, especially around text, edges and gradients, before you replace any originals.
- Keep your original files. Conversions to a lossy format cannot be undone.
- When you convert a set of images, use the same quality setting for the whole batch. The converter handles up to 20 files at once.
TIFF to ICO questions
Quick answers about privacy, quality, supported formats, file limits and how ICO works.
Why convert TIFF to ICO?
ICO is lossless. It keeps every pixel exactly. It is the safe choice when you plan to edit, print or need exact pixel data.
Will converting TIFF to ICO lose quality?
No. ICO is lossless, so nothing is thrown away.
Does ICO keep transparency?
Yes. ICO supports full transparency, so transparent areas in your original are kept.
Are my files uploaded?
Never. Everything runs in your browser. Your files never leave your device. Open DevTools Network tab while processing — you will see no upload request.
Can I convert many files at once?
Yes, up to 20 files at once. Download them individually or all together as a ZIP.
Does the converter strip metadata?
Yes. Browsers do not pass EXIF data through a canvas, so GPS, camera model and dates are removed on every conversion. That is good for privacy.
Is it free?
Yes. No credits, no daily cap, no account, no watermark. The practical limit is your device memory.
What sizes should a favicon.ico have?
At minimum 16x16, 32x32, and 48x48. Modern best practice is to include 16, 32, 48, 64, 128, and 256 pixel versions in one ICO file. Browsers pick the size they need.
Your files never leave your device
No upload, no account, no tracking. Everything happens in your browser using the Canvas API and WebAssembly. You can confirm this in your browser's DevTools Network tab while the tool runs — no request carries your file. See why ToolDeck is different.