Is my TIFF file uploaded to a server?

No. The entire conversion happens in your browser using JavaScript and the Canvas API. Your file never leaves your device.

Which browsers support AVIF encoding?

AVIF encoding via canvas.toBlob is supported in Chrome 94+, Edge 94+, and Firefox 93+. Safari has limited or no support depending on the version. If your browser cannot encode AVIF, the tool falls back to PNG and informs you.

What does the quality slider control?

The quality value (0–100) maps to the AVIF encoder's quality setting. Higher values produce better image quality but larger file sizes. Lower values compress more aggressively. A value of 80 is a good default for most images.

What happens with multi-page TIFF files?

Multi-page TIFFs contain multiple images in one file. This tool converts and exports only the first page. A notice is shown when a multi-page file is detected.

Does the tool support compressed TIFFs?

Yes. UTIF.js supports common TIFF compression methods including LZW, Deflate, and uncompressed. PackBits and CCITT formats may vary by file.

How much smaller will the AVIF file be compared to TIFF?

AVIF typically achieves 50–80% smaller file sizes than uncompressed TIFF, and is often 30–50% smaller than JPEG at equivalent visual quality. Results vary by image content and the quality setting you choose.

TIFF to AVIF Converter

Drop a TIFF file, choose quality, and download it as AVIF — all conversion happens in your browser, nothing is uploaded.

Upload TIFF File

Drag and drop a TIFF file here or click to browse — .tiff / .tif accepted

AVIF Quality 80

Smaller file Better quality

Your converted image preview will appear here

Upload a TIFF file to get started

Summary

This tool converts TIFF (Tagged Image File Format) files to AVIF entirely inside your browser using UTIF.js to decode the TIFF and the browser's native Canvas API to encode AVIF. Your file is never uploaded to any server. AVIF encoding via canvas.toBlob is supported in Chrome 94+ and Firefox 93+; Safari has limited support. A quality slider (0–100) lets you balance file size against visual fidelity. If your browser does not support AVIF encoding, the tool automatically falls back to PNG.

How it works

Select or drag-and-drop a TIFF or TIF file onto the upload area.
UTIF.js decodes the TIFF binary data into raw RGBA pixel data entirely in your browser.
The pixel data is drawn onto an HTML Canvas element at the original image dimensions.
The Canvas encodes the image to AVIF using your chosen quality setting (0–100).
If your browser does not support AVIF encoding, the tool falls back to PNG automatically.
A preview of the converted image is shown; click "Download" to save the file.

Use cases

Convert TIFF scans or photos to AVIF for drastically smaller web-ready file sizes.
Prepare TIFF exports from design or photography software for modern browsers.
Convert TIFF camera RAW exports to AVIF for sharing or web publishing.
Reduce storage footprint of archival TIFF images using AVIF compression.
Test AVIF output quality at different compression levels before deploying.
Process TIFF images privately — no server upload, no data leaves your device.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu