Where TIFF comes from and why convert
TIFF is a professional format favored in photography, publishing, scanning, and archiving because it can store images with no loss and preserve rich detail. That quality comes at a price: TIFF files are large, and web browsers, social platforms, and everyday apps generally cannot display them. If you have received a scan or a professional photo as a TIFF, sharing it can be surprisingly difficult.
Converting to JPG makes the image usable everywhere. JPG is understood by every browser, email client, and phone, and its compression shrinks the large TIFF into a size that is practical to send and post. For sharing a proof, uploading to a website, or viewing a scan quickly, JPG is the sensible format.
Keep in mind that JPG discards some data to achieve its small size, so it is not a replacement for the TIFF as an archival master. Keep your original TIFF if you need to preserve maximum quality, and use the JPG for distribution.
How the conversion works
Because browsers do not natively decode TIFF, this tool uses a dedicated TIFF decoder that runs in your browser to read the file. The decoded image is drawn onto an HTML canvas and then encoded as a JPG. No part of your file is uploaded; the decoding and conversion all happen on your device.
If the TIFF contains transparency, it is flattened onto a white background during conversion because JPG cannot store an alpha channel. Multi-page TIFF documents are handled by converting the primary image. The result is a standard JPG that any program can open.
The converter is completely free, applies no watermark, and requires no account. It runs on mobile browsers as well as desktops, so even a large scanner output can be converted directly on your phone.