Open a TN3 file online
Tiny High-Resolution Image (Atari ST) · Free online file viewer
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What is a .TN3 file?
A TN3 file is a "Tiny" compressed bitmap from the Atari ST computer — the high-resolution monochrome variant (640x400, black-and-white). To open one today, use RECOIL or XnView MP, both free and available on Windows, macOS, and Linux. Most people just want to convert the TN3 to PNG, which both tools handle directly.
- Full name
- Tiny High-Resolution Image (Atari ST)
- Category
- Raster Image Files
- Type
- Binary raster bitmap, RLE-compressed (Atari ST 'Tiny' format), high-resolution variant
- MIME
- application/octet-stream
- Developer
- David Mumper (Tiny Stuff / Tiny View utilities); Atari ST community