TIFF to RAS Converter
FileFlip converts TIFF to RAS entirely inside your browser, using ImageMagick compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert a TIFF file to RAS?#
- Drop your TIFF file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to RAS and the conversion starts on its own. FileFlip downloads 14.1 MB of WebAssembly the first time and nothing after that, then runs ImageMagick on your own machine.
- Save the RAS file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting TIFF to RAS lose quality?#
No. Converting TIFF to RAS writes the data out again without discarding any of it, so nothing that was in the TIFF file is lost on the way. What changes is the size of the file, not what is inside it.
Is it safe to convert TIFF files online?#
Yes, because nothing is uploaded. FileFlip converts TIFF files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What TIFF to RAS actually does to the file#
Converting TIFF to RAS runs on ImageMagick, downloads 14.1 MB of WebAssembly the first time and nothing after that, writes the data out again without discarding any of it, and drops EXIF metadata, ICC colour profile, transparency and extra images.
| Engine | ImageMagick |
|---|---|
| Conversion path | One step: TIFF → RAS |
| Downloaded to your browser | 14.1 MB, once, then cached by your browser |
| Quality | Lossless |
| You get back | One file |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| EXIF metadata | Dropped | The target format has nowhere to put it. |
| ICC colour profile | Dropped | The target format has nowhere to put it. |
| Transparency | Dropped | The target format has nowhere to put it. |
| Extra images | Dropped | The target format has nowhere to put it. |
Worth knowing before you start:
- ImageMagick is asked for a single image, so only the first frame, page, or icon size is read
What is a TIFF file?#
A TIFF file stores one or more raster images, usually uncompressed or losslessly compressed, inside a tagged container that scanners, printers, and publishing software rely on to keep exact pixel data intact through repeated edits.
Use TIFF for scanned documents, print production, and archival photography, where preserving every pixel losslessly matters more than file size.
Convert TIFF to JPEG or PNG when the image needs to go on the web or be shared casually, since browsers cannot display TIFF and the files are far bigger than screen viewing requires.
What is a RAS file?#
A RAS file is a Sun Raster bitmap, the raw framebuffer image format Sun Microsystems built into SunOS workstations, and it is byte-for-byte identical to the format most tools also recognise under the .sun extension.
Open a RAS file when it comes from legacy Sun or Solaris workstation software, or from an old dataset captured directly off a SunOS framebuffer.
Convert RAS to PNG or TIFF for anything beyond archival viewing, since almost no current software or web platform accepts Sun Raster natively.
TIFF to RAS questions people ask#
What is a TIFF file used for?
TIFF files are used for scanned documents, professional photography, and print production, because the format can store an image with no compression loss at all. Publishing software, print shops, and archives favor it precisely because a TIFF looks identical no matter how many times it is opened and resaved.
Why are TIFF files so large?
TIFF files are large because most are saved uncompressed or with a lossless scheme like LZW, which shrinks a file far less aggressively than lossy JPEG compression does. A high-resolution scan saved as TIFF can easily run five to ten times the size of the same image saved as a JPEG.
Can I open a TIFF file in a web browser?
No browser displays TIFF files directly; typing a .tiff file's path into the address bar just triggers a download instead of a preview. The format has to be converted to JPEG or PNG before it can appear on a web page.
Is a TIFF file the same as a camera RAW file?
No, TIFF is a separate format from a camera's RAW file, though the two are often confused because both are used for high-quality photography. RAW stores unprocessed sensor data specific to a camera model, while a TIFF holds a fully processed, already-decoded image, which is why many RAW converters export their finished output as TIFF.