TGA to PNG Converter: Free, Private, No Upload

What actually changes in this conversion

• Both TGA and PNG are lossless, so the pixels come through unchanged.
• Transparency is preserved, including soft edges.
• Expect the PNG file to be far smaller than the TGA source.
• EXIF, GPS and camera data are stripped on every conversion. That is good for privacy, but you lose capture dates.

About TGA: history and technical details

Created by Truevision in 1984 for the TARGA and VISTA graphics cards. It became a standard for video editing (Windows and Mac) and later game texture pipelines. Still widely used in Unity, Unreal and 3D tools.

Technical: 18-byte header with image type, colour map, width, height, bit depth. Types 1, 2, 3, 9, 10, 11 for uncompressed and RLE variants. Supports 8-bit indexed, 15/16-bit high colour, 24-bit truecolour, 32-bit with alpha. Bottom-left origin by default.

Real-world size: A 1024x1024 32-bit TGA is 4 MB uncompressed, 1-3 MB with RLE. A 2048x2048 texture is 16 MB uncompressed. Game engines prefer DDS or KTX2 for shipping but TGA for authoring.

Popular tools: Unity, Unreal Engine, Blender, GIMP, Adobe Photoshop, ImageMagick, NVIDIA Texture Tools.

Alternatives: DDS (better for games), KTX2 (modern GPU texture), PNG (universal), WebP (web).

About PNG: what you get

Created in 1995 as a free, patent-unencumbered replacement for GIF after Unisys began charging royalties for LZW compression. Became a W3C Recommendation in 2003. The signature bytes are 89 50 4E 47 0D 0A 1A 0A — "PNG" with newlines designed to catch file corruption.

Technical: Uses DEFLATE (LZ77 + Huffman) compression. Two main modes: 8/16-bit truecolour with alpha, and 8-bit indexed with up to 256 colours. Filters per scanline (None, Sub, Up, Average, Paeth) before DEFLATE for better ratios.

Real-world size: A 1920x1080 screenshot is 200-600 KB as PNG. As JPG at quality 85 it is 100-300 KB but with blurry text. A 12-MP photo is 18-25 MB as PNG, 2-4 MB as JPG. PNG wins on text, JPG wins on photos.

Popular tools: Adobe Photoshop, GIMP, Figma, Sketch, Snipping Tool, macOS Screenshot, ImageMagick, pngquant, oxipng.

Alternatives: WebP lossless (20-30% smaller), AVIF (better for photos), JPG (photos only), SVG (vector graphics).

Browser and software compatibility

TGA: Supported by game engines and 3D tools, but not displayed by browsers. PNG: Opens in every browser and image editor.

PNG output opens in virtually every browser, operating system and editor.

Why people move away from TGA

• Browsers and most messaging apps cannot display TGA, so sharing it is awkward.
• TGA files are large because compression is minimal.

Why people choose PNG

• PNG keeps every pixel, making it safe for screenshots, diagrams, logos and anything with text.
• It stores full alpha transparency, including soft shadows and anti-aliased edges.
• Lossless output means you can keep editing without generational loss.

Common mistakes with TGA

• Uploading TGA to a website — browsers will not display it
• Forgetting alpha channel in TGA exports — some tools drop it
• Assuming RLE TGA is fast — it is slower to decode than uncompressed

Best practices for keeping quality

• A TGA from a game pipeline may use a bottom-left origin or channel-packed data. Compare against the original before relying on it.
• Converting a lossy file to PNG stops further loss but does not restore detail already discarded. Expect a much larger file with no visible gain.
• PNG suits screenshots and flat graphics. For photographs, a lossy format is usually the better trade.
• Resize before converting if the image will be shown small. A 4000 pixel photo displayed at 800 pixels wastes bytes in any format.
• Check the result at 100 percent zoom, especially around text, edges and gradients, before you replace any originals.
• Keep your original files. Conversions to a lossy format cannot be undone.
• When you convert a set of images, use the same quality setting for the whole batch. The converter handles up to 20 files at once.