TIFF to AVIF converter
This makes an AVIF out of the TIFF you already have. AVIF is the smallest way to put a photo on a web page today, often around half the size of a JPG that looks the same. The practical difference is that the result opens anywhere, which TIFF files do not. Your file never leaves your computer.
Need the other direction? Convert AVIF to TIFF
How to convert TIFF to AVIF
- 1 Drop your TIFF .tiff or .tif file onto the page, or click to browse for it.
- 2 Set the quality, or leave the default, which keeps the file small without anything showing.
- 3 Convert. The work happens on your own machine, so how long it takes depends on your computer and the file.
- 4 Download the AVIF, or add more files and do the whole set in one go.
Why convert TIFF to AVIF
- A TIFF will not open in a browser, so anything going onto a web page, into a document or into a message has to become an AVIF first.
- Best size-to-quality ratio of any widely supported still format.
- Handles transparency and very bright, very colourful photographs.
- Image CDNs serving modern browsers with a JPEG fallback.
- TIFF: no browser displays TIFF natively, so the web needs a conversion.
TIFF compared with AVIF
How the two formats differ on the things that decide whether a conversion is worth making.
| Property | TIFF | AVIF |
|---|---|---|
| File extension | .tiff | .avif |
| Animation | No | Yes |
| Multiple pages | Yes | No |
| Colour depth | Up to 32 bits per channel, RGB, CMYK, Lab and greyscale | Up to 12 bits per channel, HDR and wide gamut |
| Browser support | No browser support | All current browsers |
| Introduced | 1986 | 2019 |
| Developed by | Aldus, now Adobe | Alliance for Open Media |
Quality and what changes
AVIF stores the same content under a different set of rules, so what matters here is compatibility rather than picture quality. Convert once from the best source you have rather than through a chain of intermediate files.
- A multi-page TIFF produces one AVIF per page.
- One AVIF limitation to keep in mind: poor support in desktop image editors and older operating systems.
Questions about TIFF to AVIF
What happens to a multi-page TIFF?
AVIF holds one page, so each page becomes a separate file and you get the set as a ZIP. Nothing is discarded, it just cannot stay in a single document.
Is my TIFF file uploaded anywhere?
No. The whole thing runs inside the browser tab you already have open. Your TIFF is read straight from your own disk, converted on your machine and handed back as an AVIF. Nothing is sent anywhere, nothing is stored and there is no account.
Is there a file size limit?
There is no server-side limit because no server sees the file. The real ceiling is your device memory, since the input and the output both have to fit in the tab. A few hundred megabytes is usually fine on a desktop machine and considerably less on a phone.
Can I convert several TIFF files at once?
Yes. Add as many as you like and they are processed one after another, then offered as separate AVIF downloads or as a single ZIP. Speed depends on your own processor rather than on a queue.
Does the converter work offline?
Yes, after the page has loaded once. The engine is cached by the browser, so you can disconnect, reload and keep converting. That falls out of doing the work locally rather than being a separate mode you switch on.