Convert
TIFF to AVIF Converter
Convert TIFF files to AVIF for very compact web images. Conversion runs in your browser, and your files are never uploaded.
Your images never leave your device
How to use TIFF to AVIF
- Drop your TIFF files on the page or pick them from your device.
- Wait while each file is converted to AVIF. AVIF encoding is slow, and large photos can take several seconds.
- Download the AVIF files one by one, or all together as a zip.
Frequently asked questions
Why does TIFF to AVIF take longer than other conversions?
AVIF encoding searches for the smallest result and is heavy work, and TIFF images are large to start with. Expect a few seconds for a big file, depending on your device.
Is AVIF good for scanned documents?
Not usually. Lossy compression can soften small text. Use PNG for scans of documents, and keep AVIF for photographs on a website.
Which browsers display AVIF?
Current versions of Chrome, Edge, Firefox and Safari. Older browsers and many apps do not, so keep a JPG or WebP fallback.
Are my TIFF files uploaded anywhere?
No. The conversion runs in your browser using WebAssembly, so your TIFF files stay on your device. There is no signup, no watermark and no cost, and you can convert a whole batch and download it as a zip.
About TIFF to AVIF
A TIFF is among the heaviest ways to store a picture and AVIF is among the lightest, so this conversion gives the largest saving of any TIFF page here. A scan or photo of tens of megabytes can end up well under a megabyte, which suits image-heavy websites that want fast pages. AVIF also supports transparency and wide color.
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AVIF encoding is slow, and a large TIFF can take several seconds per file, all on your own device. The compression is lossy, so fine detail is softened a little in photographs, and sharp text in a scan may look less crisp than in the TIFF or in a PNG. Only the first page of a multi-page TIFF is converted. Metadata is removed. Many editors, email clients and upload forms still cannot open AVIF, so use JPG or PNG when the file leaves the browser.
TIFF is normally lossless, stored uncompressed or packed with LZW or ZIP, so files are large; AVIF is lossy or lossless, compressed with AV1. Both formats can store transparency, so transparent areas in the TIFF file stay transparent. For scale, a 12-megapixel photo is typically 36 to 48 MB uncompressed as TIFF and 1 to 2.5 MB as AVIF. Compatibility: Recent versions of Chrome, Edge, Firefox and Safari display it. Support in editors, email clients and upload forms is still patchy.