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ImageConverter

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TIFF to AVIF Converter

Convert a TIFF — a scan, a print file, an archive master — into AVIF for the web. It becomes a fraction of the size, about 88% smaller for a photograph in testing, and keeps more of a TIFF's quality than most web formats can: transparency survives, and a 16-bit TIFF is stored at 12 bits rather than being cut to 8.

Deleted automatically Uploads removed within 30 minutes

Drag and drop your TIFF images here

Add several at once. Each file is processed and then deleted from our server.

Up to 20 MB per file Batch ready

80
Smaller file More detail
Presets:

Higher keeps more detail; lower makes a smaller file. Applies to images you add after changing it.

Step by step

How to convert TIFF to AVIF in 3 steps

  1. Check whether your TIFF has several pages

    Only the first is converted; TIFF to PDF keeps them all.

  2. Add your TIFF and adjust quality if you like

  3. Download your AVIF

Format comparison

TIFF vs AVIF

TIFF (Tagged Image File Format)

Lossless

A flexible container used in scanning, printing and archiving, where quality matters more than size.

  • Lossless, with high bit depths and CMYK for print
  • Standard in publishing and scanning workflows
  • Large files, and web browsers cannot display it

AVIF (AV1 Image File Format)

Lossy or lossless

The newest widely supported web format, built on the AV1 video codec and designed for the smallest files.

  • Usually the smallest file at a given visual quality
  • Supported by current Chrome, Edge, Firefox and Safari
  • Slow to encode, and unsupported by much older software

From master file to web image

TIFF is built for fidelity: lossless storage, high bit depths, CMYK for printing, several pages in one file. AVIF is built for delivery: the smallest possible file for a given visual quality. Converting keeps what the web can use and compresses it heavily.

Measured at this page's default quality:

  • An 8-bit photograph: 361 KB → 44 KB, 88% smaller.
  • The same photo as a 16-bit TIFF: 723 KB → 46 KB, 94% smaller.
  • A transparent graphic: 960 KB → 1.7 KB.

What AVIF keeps

  • More than 8 bits of precision. A 16-bit TIFF was stored as a 12-bit AVIF. That is a reduction from 16 bits, but still far more gradation than the 8 bits JPG or WebP allow, which helps smooth skies and gradients avoid banding.
  • Transparency. A TIFF with an alpha channel becomes an AVIF with one.

What does not survive

  • Exact pixels. AVIF is lossy. At the default the image looks essentially unchanged, but it is no longer a lossless master — keep the TIFF.
  • CMYK. Print files are converted to RGB screen colour, which is what the web displays. The ink values are not recoverable from the AVIF.
  • Extra pages. A multi-page TIFF becomes a single image of page one, and the tool tells you how many pages there were.
  • Metadata. Camera, scanner and location data are not carried across.

Quality

Quality and file size

The default here is 80, higher than for most AVIF conversions, because a TIFF is usually a high-quality master and it is worth preserving that on the way to the web.

  • 80, the default — for photographs, artwork and scans shown at full size.
  • 90–100 — for images where fine detail is examined closely, such as high-resolution artwork or product photography.
  • 55–70 — for thumbnails, previews and backgrounds.

Scanned documents

AVIF is a photographic format. For scanned pages of text, lossy compression can soften fine lettering, and a multi-page document loses every page but the first. For documents, TIFF to PDF keeps every page losslessly and is the better choice.

Large TIFFs

Print and archive TIFFs can be very large in pixel dimensions — far larger than a web page ever displays. It is usually worth resizing to the size the image will actually be shown at, which makes the AVIF smaller still and quicker to encode.

When TIFF to AVIF makes sense

  • Publishing print photography and artwork online from TIFF masters.
  • Web galleries and portfolios built from scanned or professionally edited images.
  • Digital archives offering web-friendly copies of TIFF originals.
  • E-commerce product images exported from photography workflows as TIFF.

AVIF, WebP or JPG?

  • AVIF — smallest files, and keeps more than 8 bits of precision.
  • WebP — larger and limited to 8 bits, but more widely supported outside browsers and much quicker to create.
  • JPG — universally compatible, 8-bit, and the largest of the three.

Measured on a 3000 × 2000 photograph — one previously saved as a JPEG, which makes it compress more easily than a camera original: 68 KB as AVIF, 102 KB as WebP and 381 KB as JPG. AVIF is also the slowest to produce — about 3.6 seconds against 0.6 for WebP — which matters mainly when converting large batches.

Keep the TIFF

An AVIF is a delivery copy, not a replacement. Everything this conversion discards — exact pixels, CMYK values, extra pages, metadata, and the difference between 12 and 16 bits — exists only in the TIFF. Keep the master and generate web copies from it as needed.

What happens to your file

Browsers cannot read TIFF files, so this runs on our server. Your upload is deleted the moment conversion finishes, the result is deleted as you download it, and anything abandoned is swept automatically.

Privacy

What happens to your file

This tool runs on our server, so it works the same on every phone and computer. Your file is uploaded, and this is exactly what happens to it:

  • Stored outside the public web root under a random name, never under your file's name.
  • Processed, with the original upload deleted immediately — whether it succeeded or failed.
  • The result sits behind a signed link that only you receive, which stops working after 20 minutes, and the file is deleted the moment you download it.
  • Anything never collected is deleted automatically within 30 minutes.
  • The image itself is never logged or kept. If a conversion fails, we record the formats involved and the error — not the file.
  • Camera metadata, including any GPS coordinates recording where a photo was taken, is removed from the result. Only the rotation needed to show the image the right way up is kept.

Questions & answers

TIFF to AVIF: frequently asked questions

How much smaller is AVIF than TIFF?

Much smaller. At the default setting an 8-bit photograph went from 361 KB to 44 KB, and the same photo as a 16-bit TIFF from 723 KB to 46 KB.

Does AVIF keep my 16-bit colour?

Partly. A 16-bit TIFF is stored as a 12-bit AVIF — less than 16 bits, but far more gradation than the 8 bits JPG and WebP allow, which helps smooth gradients avoid banding.

What happens to a CMYK print file?

It is converted to RGB screen colour, which is what browsers display. The original ink values cannot be recovered from the AVIF, so keep the TIFF for printing.

Is transparency kept?

Yes. A TIFF with an alpha channel becomes an AVIF with one.

My TIFF has several pages. What happens?

The AVIF contains page one, and the tool tells you how many pages there were. For multi-page scans and documents, TIFF to PDF keeps every page.

Is this lossless?

No. AVIF is lossy; at the default the image looks essentially unchanged but is no longer a lossless master. Keep your TIFF, and use the AVIF as a web copy.

Keep going

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