Pixelmint
A specimen on transformation

TIFF to AVIF.

Convert .tiff to .avif inside your browser. No uploads, no signup, no watermark.

Source
image/tiff
Target
image/avif
Encoder
WASM (Squoosh)
Privacy
Fully local

Drop image here

orClick to browse
PNG · JPG · WEBP · AVIF · JPEG XL · GIF · BMP · SVG · ICO · TIFF · HEIC
100% private · files never leave this device
Convert to
Quality / 92
Resize
Resize value
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Two formats

What you bring, what you leave with.

Source.tiff

TIFF

TIFF is a flexible, lossless raster format common in print and archival workflows. Pixelmint emits uncompressed RGBA TIFF.

Target.avif

AVIF

AVIF is the newest open image format. It delivers smaller files than WebP at the same quality — often 30-50% smaller than JPG. Supported by all modern browsers.

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On the matter

Why convert TIFF to AVIF.

AVIF is the newest open image format. It is typically 40-50% smaller than TIFF at the same visual quality, with full transparency support. The encoder runs locally in your browser via WebAssembly.

The procedure.

  1. 01Open this page in any modern browser.
  2. 02Drop a .tiff file onto the zone above, or click to pick.
  3. 03Adjust quality if needed.
  4. 04Download your .avif. Nothing is uploaded.
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Correspondence

Letters to the editor.

Q.01How do I convert TIFF to AVIF?+
A.01

Drop your TIFF file onto the converter above (or click to pick one), then hit Convert. Your AVIF download starts the moment the encoder finishes — usually under a second. Nothing leaves your device.

Q.02Is converting TIFF to AVIF lossless?+
A.02

No. AVIF uses lossy compression by default. You can tune the quality slider to trade file size for fidelity. Quality 90 is a good default that beats most online tools.

Q.03Will my TIFF files be uploaded to a server?+
A.03

No. Pixelmint runs the entire conversion in your browser using the Canvas API. Your image bytes never touch our servers, which is why this is safe for confidential screenshots, IDs, and proprietary artwork.

Q.04Is there a file size limit?+
A.04

There's no hard limit, but very large images (over ~50 megapixels) can be slow on low-RAM devices because everything happens locally. Most browsers cap canvas size around 32,767 pixels per side.

Q.05Does it cost anything?+
A.05

No. TIFF to AVIF conversion is free, unlimited, and has no watermarks, signups, ads on the file, or hidden tiers.