FREE companion utility

PNG Pixelizer

Turns transparent PNG cutouts into a crisp pixelated / 8‑bit style PNG while preserving transparency (or optionally filling a solid background).

Single EXE No installer Batch folder mode Transparent PNG only
Quick start Troubleshooting

At a glance

  • Drop the EXE into a folder of PNGs
  • Run it → it scans that folder
  • Outputs go into pixelized\
  • Skips PNGs with no transparency
Designed to pair with TomsBGRemover outputs, but works with any transparent PNG.

1) What is this?

PNG Pixelizer is a tiny Windows utility that applies a deterministic “block pixel” effect to transparent PNG images. It’s meant for sticker packs, thumbnails, retro aesthetics, and quick batch conversion — not for hand-drawn “true pixel art”.

Important: This tool does not remove backgrounds. It only pixelizes images that already have transparency.

2) Why you might want it

  • Make “retro / 8‑bit” style versions of your cutouts quickly.
  • Create consistent pixel thumbnails for social posts and listings.
  • Batch-process entire folders without any setup.
  • Preserve transparency so results can be layered anywhere.

3) Where to find it in your ZIP

If this tool is bundled with another download, it will usually be in a folder like: 

Tools\PNGPixelizer\PNGPixelizer.exe

If you downloaded it by itself, you’ll just have PNGPixelizer.exe.

4) Quick start (fastest way)

  1. Create (or pick) a folder containing your transparent PNG images.
  2. Copy PNGPixelizer.exe into that same folder.
  3. Double‑click the EXE.
  4. Choose your options (or leave defaults).
  5. Click Pixelize Folder Images.
  6. Your results will appear in a new subfolder: pixelized\
If a PNG has no transparent pixels, it will be skipped and logged as: Skipped (no transparency detected)

5) How it works (step‑by‑step)

  1. Scans the folder where the EXE is located.
  2. Finds all .png files in that folder.
  3. Checks each PNG for transparency.
  4. Pixelizes by downscaling then upscaling using crisp block pixels.
  5. Optionally reduces colors (palette mode) for a more retro look.
  6. Writes output PNGs into pixelized\.

6) Settings explained

Pixel block size

Controls how chunky the pixels are. Larger = bigger blocks.

  • Default: 16
  • Range: 4 → 64
  • Try 8–16 for stickers, 24–48 for strong retro.

Clean edges

Helps reduce “halo” edges by cleaning up semi‑transparent alpha after pixelization. This can make soft edges (hair/fur) look sharper, so it’s a taste call.

  • Default: ON
  • Turn OFF if you want to preserve very soft edges.

Palette reduce (optional)

Limits colors to a smaller set for a classic retro look.

  • Default: OFF
  • Palette size: 16 / 32 / 64 (default 32)
  • Useful for a consistent “game sprite” vibe.

Transparent vs solid background

By default, output remains transparent. If you enable solid background, transparent pixels are filled with the chosen color and the result becomes opaque.

  • Transparent output: Default ON
  • Solid background: Default OFF (color picker when ON)

7) Output files

Output images are written to: 

pixelized\originalfilename_pixel.png
Originals are never modified. The tool only creates new files in pixelized\.

8) Tips for best results

  • Start with clean cutouts (best results come from good transparency masks).
  • Try block size 12–20 for product-style stickers.
  • If edges look too harsh, turn Clean edges OFF.
  • For a stronger retro vibe, enable Palette reduce (try 32 colors).
  • Use solid background if you need a consistent “card” look for socials.

9) Troubleshooting

It says “Skipped (no transparency detected)”

The PNG has no transparent pixels. This tool only processes transparent PNGs. If you meant to remove the background first, run it through TomsBGRemover first.

No files appear in pixelized\

  • Make sure the EXE is in the same folder as the PNGs.
  • Check the log box for skip messages or errors.
  • Ensure Windows security hasn’t blocked the EXE (right‑click → Properties → Unblock).

Some PNGs fail to process

PNGs can vary in how they’re encoded. Try re‑saving the PNG with a standard editor, then run again. The tool will keep processing the rest of the folder.

10) Support ticket template (copy/paste)

Use this if you’re reporting a bug:

Tool: PNG Pixelizer (Free)
Windows version: (e.g. Windows 10 / 11)
What you expected:
What happened:
Pixel block size used:
Options enabled: Clean edges (Y/N), Palette reduce (Y/N, size), Solid background (Y/N)
Number of PNGs in folder:
Example PNG (attach one that fails, if possible)
Log output (copy from the log box):
Bundled: These free apps are included in the latest TomsBGRemover ZIP file. You can find the EXE tools in the output folder inside the ZIP (along with these HTML pages).