.tga

What is a .tga file?

TGA is a legacy image format still used in game development and 3D rendering for its simplicity and alpha channel support.

Safe format
Type Image
By Truevision (now Avid)
MIME image/x-tga

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What is it

TGA has been around since 1984 and refuses to retire. Truevision designed it for their graphics cards, and it became the default texture format for a generation of game engines and 3D renderers. The format is dead simple — a small header followed by raw pixel data — which makes it trivially fast to load and write. When a game engine needs to blast thousands of textures into GPU memory, TGA's simplicity is a genuine advantage.

The format supports 8, 16, 24, and 32-bit colour depths, with the 32-bit variant including an 8-bit alpha channel for transparency. Optional RLE compression is available but rarely used — most tools expect uncompressed TGA. The files are large compared to PNG, but when you're loading textures into a GPU that will decompress them anyway, the disk size matters less than the load speed.

You'll find TGA in game asset pipelines, 3D rendering outputs (Blender, Maya), and legacy graphics workflows. Photoshop, GIMP, and most image editors open TGA. For web or general use, convert to PNG (same quality, better compression, same alpha channel support).

Technical details
Full Name
Targa Image
MIME Type
image/x-tga
Developer
Truevision (now Avid)
Magic Bytes
N/A
Safety
.tga is a known, safe format. Image data only. No executable content.
What opens it
Photoshop
$22.99/mo Windows / Mac
GIMP
FREE Windows / Mac / Linux
IrfanView
FREE Windows
FAQ
Why do game developers use TGA?
TGA is extremely fast to load — its simple format means minimal parsing overhead. For game texture pipelines that process thousands of images, this speed matters. The format also natively supports alpha channels for transparency.
Should I convert TGA to PNG?
For web use or sharing, yes — PNG offers better compression with the same quality and transparency support. For game development pipelines, TGA may be preferred for its faster loading.
Related formats