What TIFF to QOI conversion does

Convert a TIFF image to QOI (Quite OK Image) directly in your browser. QOI is a simple, fast, lossless image format popular in developer and graphics-programming workflows.

How to convert TIFF to QOI

1. Choose a TIFF or TIF file.
2. Select Convert & download.
3. Save the .qoi file from your browser downloads.

Why use this conversion

QOI’s small, easy-to-implement specification makes it popular in tooling and pipelines that specifically read or write QOI, where fast encode/decode matters more than universal support.

Transparency and output quality

QOI supports a full alpha channel, and this tool preserves it from the source. QOI encoding is always lossless — every pixel from the source is reproduced exactly. Resulting file size is typically comparable to PNG.

Privacy and local processing

• Processing occurs locally in the browser.
• Files are not uploaded to Looty Tools for conversion.
• Converted files remain on your device.

Limits and known issues

• Input: TIFF (.tif, .tiff) only, up to 25.0 MB and 8,192 px per side.
• QOI is a developer-focused format with limited support in mainstream operating systems and browsers — it is intended for tooling and pipelines that read QOI directly.
• Multi-page TIFF: only the first page is converted to QOI. Additional pages are not extracted or included in the download.
• Metadata is not preserved in the downloaded file.

Related tools

• TIFF to AnyConvert TIFF images into multiple common output formats.
• TIFF to BMPConvert TIFF images to uncompressed BMP bitmaps.
• TIFF to GIFConvert TIFF images to a static GIF.

TIFF to QOI FAQ

Why convert TIFF to QOI?

QOI’s small, easy-to-implement specification makes it popular in tooling and pipelines that specifically read or write QOI, where fast encode/decode matters more than universal support.

Is QOI output lossless?

Yes. QOI encoding is always lossless — every pixel from the source is reproduced exactly.

Does QOI output keep transparency?

Yes. QOI supports a full alpha channel, and this tool preserves it from the source.

Does this convert every page of a multi-page TIFF?

No. Only the first page (IFD) is converted. Additional pages are not extracted or included in the download.

Are my files uploaded?

No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

What is validated before conversion?

The file must actually be a TIFF — the tool checks the byte-order header (little-endian "II*" or big-endian "MM*"), not just the filename or extension, before decoding.