Convert TIFF and TIF images to AVIF directly in your browser. The smallest modern format, ideal for shrinking large uncompressed TIFF files for the web.
AVIF
Smallest Format
~50%
Smaller Size
Instant
Browser Conversion
Private
No Uploads
Drop TIFF files here or click to browse
Supports .tif and .tiff, all processing stays in your browser
AVIF encoding is slower than JPEG or WebP, especially for large source files. Batches of high-resolution scans may take a little longer to finish, entirely in your browser.
AVIF is the right choice when file size matters most for a TIFF headed to a website or app rather than an internal archive.
Large archival scans for the web
Publishing a scanned document or photo archive online sees the biggest practical size reduction from AVIF.
Professional photography exports
Camera TIFF exports converted to AVIF keep detail high while cutting file size well beyond what JPEG achieves.
Product and catalog photography
Large product photo libraries benefit most from AVIF's compression when every image needs to load quickly.
Maximizing Core Web Vitals
Replacing heavy TIFF-derived images with AVIF has an outsized effect on page weight and load time.
Not sure AVIF is the right target? The TIFF to WebP converter trades a little extra file size for noticeably faster encoding on large source files.
Professional TIFF exports often carry more color information per pixel than a typical web image ever will. Many cameras and scanners save 16 bits per channel rather than the 8 bits a standard JPEG uses, capturing far more subtle tonal gradation than a screen usually needs to display. AVIF supports higher bit depth output than JPEG, so converting a 16-bit TIFF to AVIF preserves noticeably more of that extra tonal range than converting to JPEG would, which matters most for a photo with a wide dynamic range, like a sunset or a high-contrast scan.
TIFF remains a mainstay of professional print and prepress work partly because it can carry a CMYK color space or an embedded ICC color profile, giving printers exact color reproduction instructions. AVIF, like every other browser image format, only understands RGB, so converting a CMYK TIFF forces a conversion step through RGB, and colors calibrated for a specific printer or press can shift slightly in the result. This rarely matters for a scanned document or a straightforward RGB photo, but it's worth a quick check on any TIFF that came out of a print production workflow.
AVIF's AV1-based encoding is already more compute intensive than JPEG or WebP, and that cost is paid based on how many pixels go into the encoder, not how small the output ends up being. A large archival TIFF scan at several thousand pixels wide takes noticeably longer to encode than a small web graphic would, even though the resulting AVIF file itself might be tiny. For a batch of large scanned TIFFs, expect each conversion to take real time rather than finishing instantly the way a small icon conversion would.
The size gap between an uncompressed TIFF and its AVIF equivalent is usually the largest of any format pairing on this site, since TIFF frequently starts out uncompressed and AVIF finishes as one of the most compressed formats available anywhere. That makes the extra encoding time worth it specifically when the destination is a website or app where every kilobyte affects load time, rather than for a copy that's staying in an internal archive, where the original TIFF should remain the master file regardless.
AVIF is the most efficient widely supported format for photographic content, typically producing files around 50 percent smaller than an equivalent JPEG and noticeably smaller than WebP at the same visual quality. Since TIFF files are usually uncompressed or only lightly compressed, converting straight to AVIF gives the largest possible reduction in file size for a photo or scanned image originally saved as TIFF.
Yes. AVIF support is now near universal across Chrome, Firefox, Safari and Edge, and Google's PageSpeed Insights recommends it as a preferred format for web images. For situations needing guaranteed compatibility with very old browsers or software, WebP or JPEG remain safer fallback choices, but AVIF is the strongest default for most modern audiences.
Yes. AVIF encoding is more computationally intensive than JPEG or WebP, and that cost scales with the size of the source image. Large archival TIFF scans or high-resolution camera exports take noticeably longer to encode than a small web graphic would. This happens entirely in your browser using WebAssembly, so there is no upload wait, only the local encoding time itself.
Yes. If your source TIFF includes an alpha channel, it carries through to the AVIF output. AVIF supports full transparency, the same as PNG and WebP.
No. The TIFF decoder and AVIF encoder both run entirely in your browser. Your file never leaves your device at any point during the conversion.
