OME-TIFF Viewer
Open OME-TIFF files with all their channels and planes. Nothing to convert, nothing to upload. A large file starts showing right away, because the viewer reads only the part you look at.
How It Opens
- One file on your disk, in any browser. Drop it on the viewer, or click Open Image and Choose File. See Local Files.
- A folder of files, in Chrome and Edge. One file opens, several show a list. See Local Files.
- An address:
https://,s3://orgs://. Paste it under Open Image. See Remote URLs. - Private data, with a private link or a token. See Private Images and Slides.
A Z-stack can also be viewed in 3D, whichever of these it was opened from. See 3D Rendering.
What You Will See
- Lower resolutions. When the file has them, zooming out stays fast.
- Channels. Names and colours come from the file. RGB and multi-channel fluorescence both open.
- Z and time. Sliders step through the planes.
- 3D. A Z-stack opens in 3D too, with XY, XZ and YZ planes and the volume. See 3D Rendering.
- Pixel types. 8, 16 and 32-bit integers and float.
- Compression. None, LZW, Deflate and JPEG.
- Pixel size and magnification. The pixel size comes from the file, and the magnification from the objective it names. To set your own, see Pixel Size and Magnification.
If a File Does Not Open
The viewer tells you why.
| What the file has | What the viewer says |
|---|---|
| Planes kept in other files | This OME-TIFF keeps its planes in other files. The viewer reads one file for now. |
| Another compression, such as JPEG 2000 | This OME-TIFF uses a compression the viewer cannot read yet. |
| Another pixel type, such as double | This OME-TIFF has a pixel type the viewer cannot read yet. |
| Not an OME-TIFF | This file is not an OME-TIFF. |
| A damaged or incomplete file | This OME-TIFF looks damaged or incomplete. |
Label and overview images are left out, with a note.
Annotations
Import GeoJSON or OME-XML, and export both, from the Annotations panel. Send a link that opens the slide with its annotations. Exchanging Annotations shows how. To draw, measure and label shapes on the slide, see Annotations.
Public Files to Try
The OME project publishes sample OME-TIFF files, with pyramids under sub-resolutions.
For Your IT Team
To open a file by address, the server must answer byte-range requests and allow them through CORS. For a bucket, allow GET and the Range header in its CORS rules. What the Server Needs has the details.
When a server cannot send parts of a file, the viewer says so. Download the file and open it from your computer.
Addresses that start with s3:// and gs:// work too.
Image credits
The screenshot uses Leica-1.ome.tiff, a sample OME-TIFF file (c) the OME Consortium, CC BY 4.0, made from an OpenSlide Leica slide. See Sample Data and Credits.
Privacy
The file is read in your browser. Opening one counts as one opened image of the kind "OME-TIFF file". The file name and address are never recorded. See the privacy policy.