TIFF to CSS Converter: Free, Private, No Upload

Convert TIFF files to CSS in your browser. Smaller output file, batch up to 20 files at once, no upload, no account, no watermark. Your files never leave your device.

TIFF to CSS
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 CSS for free?

Drop your TIFF files into the tool above, choose CSS 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: CSS
Best for: CSS workflows, smaller files, faster sharing
Works on: Chrome, Edge, Firefox, Safari, iOS and Android browsers
Privacy: No upload, no tracking, metadata stripped
Output quality: Adjustable 1-100, defaults to 90

How to convert TIFF to CSS

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
CSS is preselected
Output is already set to CSS. Adjust quality, resize or batch if you want.
3
Download
Save each CSS, or download all of them together as a ZIP.

TIFF to CSS: 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.

CSS is not an image format. It is a CSS snippet that wraps the image data as text. Its main appeal is keeping small icons and textures inside the stylesheet with no extra request. The main drawbacks are a bigger stylesheet that blocks rendering, and no separate caching for the image.

TIFF vs CSS at a glance

Property	TIFF	CSS
Type	Container format	Text encoding of an image
Compression	Flexible: uncompressed, lossless (LZW or ZIP) or JPEG-compressed	The image bytes are written out as Base64 text, which adds about 33 percent to the size
Transparency	Full alpha channel with soft edges	Same as the embedded image
Animation	No	Same as the embedded image
Colour depth	8, 16 or 32 bits per channel, with CMYK, layers and multiple pages	Same as the embedded image
Support	Supported by professional editors, scanners and print workflows. Safari is the only major browser that displays it	Works in all modern browsers
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.	CSS background-image with data URIs became popular around 2010 for embedding small icons and gradients in stylesheets. Modern bundlers (webpack, Vite) still support this pattern.

What actually changes in this conversion

CSS is an encoding of the image data, not a new compression scheme. The text is about a third larger than the binary file, so what you gain is portability rather than a smaller size.
Transparency follows the image data being encoded. CSS itself is only a text wrapper.
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.
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 CSS: what you get

CSS background-image with data URIs became popular around 2010 for embedding small icons and gradients in stylesheets. Modern bundlers (webpack, Vite) still support this pattern.

Technical: .icon { background-image: url("data:image/svg+xml;base64,..."); }. SVG data URIs can also use URL-encoded text (smaller than base64). For raster icons, base64 adds 33% overhead.

Real-world size: A 2 KB SVG icon as base64 CSS is ~2.7 KB, but as URL-encoded text is ~2 KB. A stylesheet with 20 embedded icons can be 40-60 KB, downloaded before first paint.

Popular tools: Webpack (css-loader), Vite, PostCSS, Sass (with helpers), online CSS minifiers.

Alternatives: External image URL (cacheable), Inline SVG in HTML, Icon font, SVG sprite.

Browser and software compatibility

TIFF: Supported by professional editors, scanners and print workflows. Safari is the only major browser that displays it. CSS: Works in all modern browsers.

The CSS snippet works in all modern browsers. Keep it for small assets.

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 CSS

A CSS rule with the image embedded as a background keeps small icons in the stylesheet, no extra request.
It is handy for widgets and component libraries that ship as a single CSS file.

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.
Stylesheets block rendering, so a large embedded image delays first paint. Use this only for small assets.
For simple icons, an SVG data URI is usually sharper and smaller than a Base64 PNG.
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 CSS questions

Quick answers about privacy, quality, supported formats, file limits and how CSS works.

Why convert TIFF to CSS?

CSS files are typically smaller than TIFF, which makes them faster to share, send and load. The trade-off is a small amount of image detail at low quality settings.

Will converting TIFF to CSS lose quality?

At 90% quality, most people cannot tell the difference. Use 85-95% for photos and you are fine.

Does CSS keep transparency?

CSS is only a text wrapper around the image data, so transparency depends on the image format inside it.

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.

SVG base64 or URL-encoded in CSS?

URL-encoded is usually 15-25% smaller than base64 for SVG, because SVG is text. For raster images (PNG, JPG), base64 is the only option.

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.