TIFF to WebP Converter

TIFF scans and print files are big, and Chrome, Edge and Firefox cannot even display them. WebP turns them into compact images that load fast on any website. This converter reads each TIFF page in your browser — strips or tiles, uncompressed, PackBits, LZW, Deflate or JPEG, greyscale, RGB, palette or CMYK — and saves it as WebP, lossy for photos or lossless for documents and line art.

How to use this tool

1. Drop one or more .tif or .tiff files.
2. Choose the first page, all pages, or a list such as 1-3, 5.
3. Set the quality, or tick lossless for text and drawings; optionally set a max size such as 2000 px.
4. Download the WebP files, one per page.

Formula

Pages are found by following each image directory's "next" offset from the TIFF header; reduced-size thumbnails are skipped. Each page is decoded to 8-bit RGBA and encoded as WebP: VP8 (lossy, quality q) or VP8L (lossless).

A built-in reader decodes 1-, 4-, 8- and 16-bit pages with any of the common compressions; JPEG-compressed pages use the browser's JPEG decoder. Rare layouts such as CCITT fax pages use the ffmpeg engine, a one-time download of about 30 MB. CMYK is converted with a simple formula without a colour profile. WebP allows at most 16,383 px per side, so very large scans need a max size.

Example

A portrait A4 page scanned at 300 DPI is 2480 × 3508 px. With a max size of 1600, the long side (the height) becomes 1600 px and the width 2480 × 1600 ÷ 3508 = 1131 px. A two-page contract.tiff with "All pages" gives contract-p1.webp and contract-p2.webp.