File formats, made simple
Guides, comparisons and how-tos about file formats and conversion — in plain language, with no fluff and real takeaways.
How-toHow to Open and Convert TGA: PNG, JPG and Every Method
How to open a .tga file and convert TGA to PNG or JPG: online in seconds, or in Photoshop, GIMP, IrfanView. When to pick PNG, when JPG, and how to…
How-toHow to Open DjVu: Apps for Windows, Mac, Android and Online
How to open a DjVu file on Windows, Mac, Android and iPhone — the best readers (WinDjView, SumatraPDF, MacDjView, FullReader) and an online way wit…
How-toHow to Open a JP2 and J2K File: A Simple Guide
How to open a JP2 and J2K file on Windows, Mac and phone: what reads JPEG 2000 and how to quickly convert it to PNG or JPG online. A step-by-step g…
How-toHow to Open JXL: Working Ways to View a .jxl Today
How to open a JXL (JPEG XL) file in 2026: which browsers and apps understand it, and how to quickly convert .jxl to PNG or JPG. Step-by-step guide…
How-toHow to Open PPM and Convert It to PNG or JPG
How to open a PPM file on Windows, Mac and online, and how to quickly convert PPM to PNG or JPG. A step-by-step guide with the right apps and the s…
How-toHow to Open .xcf Without GIMP and Convert It to PNG/JPG
How to open a .xcf file without GIMP and quickly convert it to PNG or JPG. We cover GIMP, XnView, ImageMagick, an online converter, the Open vs Exp…
ComparisonJPEG 2000 vs JPEG: Quality, Artifacts, Size, Support
JPEG 2000 vs regular JPEG: how their artifacts differ (blocks vs blur), who compresses better, who weighs less, and why JPEG still wins on support.…
Deep DiveLossless JPEG to JXL: Save 20% of Space Honestly
Lossless JPEG-to-JXL recompression: how JPEG XL shrinks old photos by about 20% with zero quality loss and bit-for-bit reversibility. Why it matter…
ComparisonJPEG XL vs AVIF vs WebP: Which Format to Choose in 2026
JPEG XL vs AVIF vs WebP: an honest 2026 comparison of compression, encoding speed, features and browser support. Which format to pick for the web,…
Deep DiveWhy Programmers Love PPM in Code and Image Processing
Why programmers love PPM: how it's used in the ImageMagick, dcraw and ffmpeg pipelines, for image generation and teaching graphics. A sample that o…
ComparisonPPM vs PNG and BMP: Size, Compression and the Winner
PPM vs PNG and BMP: how they differ in size, compression and transparency, which weighs more, and when to choose each. A clear comparison of three…
Deep DiveAlpha and RLE: How TGA Works Inside
How TGA works inside: the 18-byte header, image types 2 and 10, the RLE algorithm, the 8-bit alpha channel, the version 2.0 footer and the TRUEVISI…