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AVIF to TIFF Converter

Turn AVIF files into TIFF in a couple of clicks. AVIF is a next-gen format with the best compression available today; TIFF is a high-fidelity format used in print and archiving. The conversion is lossless — every pixel, sample or byte in the source is preserved.

Not uploaded to any serverConverted on this deviceGone when you close the tabHow this works

Drop your files here

AVIF files (.avif) · up to 120 MB each

or paste files from your clipboard

Ready when you are

Drop a AVIF file above and FileTools360 will turn it into TIFF — right here on your device, without uploading anything.

⌘K to search converters

How to use it

1
Add your AVIF files
Drag them onto the drop area, choose them from your device, or paste them from your clipboard. You can queue several at once. Nothing is sent anywhere — the file stays on this device.
2
Adjust the settings if you want to
The defaults suit most people. Open Advanced to control metadata removal.
3
Convert and download
Press Convert. Everything happens on your own device — nothing is uploaded. Download files one by one, or grab them all as a ZIP.

Privacy, in plain words

Is it safe? Your AVIF file is not uploaded anywhere

What “uploaded” normally means. On most online converters, pressing the button copies your file across the internet onto a computer owned by that website. That copy is what the word “upload” means, and it is the part nobody explains.

What happens instead. This site does not do it. There is no server here that receives files, so your AVIF file is read, converted and handed back by the browser you are using right now. It never travels — so there is no copy to store, read, leak or hand over.

Check it yourself in ten seconds

Turn off your Wi-Fi after this page has loaded, then convert a file anyway. It still works, because everything needed is already on your device.

The longer explanation of how this works, and the full detail of what is and is not stored on the privacy page.

Why this matters more than it sounds

Photographs carry more than what is in the frame — most also carry the time, the device and often the GPS coordinates where they were taken. It matters more than it sounds, because of what images usually are:

Photographs of children

family pictures that should stay in the family

Passport and visa photos

biometric-grade images of your face

Screenshots of private messages

conversations that included other people

Photos of ID cards and licences

the usual way people send identity documents

A file that is never sent cannot be kept, leaked, subpoenaed or used to train anything. That is a property of how this works, not a promise about how carefully it is run.

AVIF and TIFF explained

AVIF stores still images using the AV1 video codec's intra-frame compression. It generally achieves the smallest files of any widely supported format, and it handles wide colour gamut and HDR, which JPEG cannot.

TIFF is a flexible container used in print, publishing and archiving. It can hold multiple pages, layers, and a variety of compression schemes including none at all, which is why TIFF files vary enormously in size.

Where AVIF files come from: Performance-focused websites and modern image pipelines.
Where TIFF is used: Scanners, professional photography workflows, and print production.

AVIF vs TIFF

The two formats solve different problems, which is why converting between them involves trade-offs rather than a straight upgrade.

AVIF compared with TIFF
Property	Source	Target
Compression	Lossy or lossless	Lossy or lossless
Transparency	Yes	Yes
Animation	Yes	No
Introduced	2019	1986
Browser support	Modern browsers only. Limited desktop app support.	Professional tools yes, web browsers no.

AVIF is stronger at: The best compression of any broadly supported image format. Handles HDR and wide colour gamut. Supports transparency and animation.
TIFF is stronger at: Lossless, with optional compression. Supports multiple pages in one file. Handles CMYK and high bit depths for print.

Why convert AVIF to TIFF?

People make this switch when they run into the limits of AVIF: the file needs to be opened outside a browser, or you need fast bulk encoding. TIFF is the better fit when printing, archiving, or handing files to a professional print workflow.

AVIF limitations that prompt the switch: Encoding is slow compared with JPEG or WebP. Desktop application support is still thin. Very low bitrates can smear fine detail in a distinctive way.
What you give up: No browser support at all. Large files.

Does converting AVIF to TIFF reduce quality?

Both formats store the content without discarding data, so this conversion preserves it exactly. The file size may change because the two formats compress differently, but the content itself is unaffected.

Measured, not estimated

What converting AVIF to TIFF actually costs

On every sample measured, the TIFF came out larger — 7.8× larger at best and 2702× larger at worst.

Every sample came back pixel-identical to the file that went in: this conversion changes the container, not the picture.

Each row is one sample chosen to isolate a property these formats treat differently.
Sample	AVIF in	TIFF out	Change	Similarity
Smooth gradientContinuous tone with no detail — the easiest thing to compress, and where banding shows first.	4.6 KB	1.8 MB	406×	1.000
Hard-edged text and UIHigh-contrast edges. This is where JPEG's ringing artefacts appear and where PNG wins.	42.3 KB	1.8 MB	44×	1.000
Film-like noiseRandom detail. Incompressible by design — the worst case for every lossy codec.	242 KB	1.8 MB	7.8×	1.000
Flat colour blocksLarge areas of one colour — a logo or a chart. Lossless formats should crush this.	711 B	1.8 MB	2702×	1.000
Soft alpha edgeA transparent gradient. JPEG cannot store it at all, which is the single most common reason a conversion surprises someone.	2.3 KB	1.8 MB	803×	1.000

Produced by this site's own converter. The same code that runs in your browser, at the same default settings, so these are the bytes you would download.

Samples are generated from a fixed seed rather than taken from real photographs or documents, so the corpus is reproducible and carries no licensing question — and so the numbers predict the shape of your result rather than its exact size. Measured 2026-10-01. The method, and the command that regenerates every figure on this page, are on the how it works page.

About these formats

Source

AV1 Image File Format

Next-gen format with the best compression available today.

Extensions: .avif
MIME type: image/avif
Best for: Smallest web images · HDR and wide gamut · Photography
Compatibility: Modern browsers only. Limited desktop app support.

Target

Tagged Image File Format

High-fidelity format used in print and archiving.

Extensions: .tiff, .tif
MIME type: image/tiff
Best for: Printing · Scanning · Archival masters
Compatibility: Professional tools yes, web browsers no.

Converting AVIF to TIFF cannot restore detail that the original encoder already discarded. It preserves exactly what is there today — nothing more.

Good to know

AVIF to TIFF Converter — questions

How do I convert AVIF to TIFF?

Drop your AVIF file onto the area above, then press Convert. The TIFF file saves straight to your device. You do not need an account, and there is no watermark.

Is it safe to convert AVIF files here — are they uploaded to a server?

No, nothing is uploaded. On most online converters, pressing the button copies your file across the internet onto a computer owned by that website; it is converted there and sent back. That copy is what "upload" means, and it is the part that puts your file out of your control. This site does not do it. Your AVIF file is read and converted by the browser you are using right now and never leaves this device, so there is no copy for anyone to store, read or hand over. You can prove it: turn off your Wi-Fi after this page loads and the conversion still works.

Can I convert confidential AVIF files, like bank statements or contracts?

Yes, and that is the case this site was built for. Because the file never leaves your device, a confidential document is no more exposed than it is sitting in your own folder — there is no transfer, no copy on someone else's hardware, no retention period to read about and no staff with access. Nothing is logged about the file either: not its name, not its size, not its contents. The one thing worth saying plainly is that this protects the file in transit and at rest on our side, not from anything already on your own computer.

What should I know before converting AVIF to TIFF?

Converting AVIF to TIFF cannot restore detail that the original encoder already discarded. It preserves exactly what is there today — nothing more.

Does converting to TIFF reduce quality?

No. TIFF is a lossless format, so the conversion preserves exactly what is in your AVIF file. Note that it cannot recover detail that was already discarded when the AVIF was first created — a lossless container does not undo earlier compression.

How large a file can I convert?

Up to 120 MB per file for this conversion. Because the work happens in your browser, the practical limit is your device's memory — larger files work on a desktop with plenty of RAM and may fail on an older phone.

Can I convert several files at once?

Yes. Add as many as you like and press Convert All. Each file is processed independently, so one failure does not stop the rest, and you can download everything together as a ZIP.

Can I use this on my phone?

Yes. FileTools360 works in mobile browsers on iOS and Android, including choosing files straight from your camera roll. Very large images may run out of memory on a phone — those are better converted on a laptop.