Tessera v1.0.15

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

What's new:

• Show processing and saving messages, update status and update confirmations in dialogs styled to match Tessera.
• Give the color replacement window the shared Tessera dialog frame while retaining the color field, hue strip, palette and HEX controls.

Users of v1.0.11 or later can install this release through the app's update button. The image library stays in place.

Updating from v1.0.10 or earlier: download this release manually once to enable future in-app updates.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.14...v1.0.15

Tessera v1.0.14

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

What's new:

• Convert multilayer RGBA Aseprite animations: visible image layers are composited in order, hidden layers and groups stay hidden, and linked cels resolve within their own layer.
• Preserve color when compositing translucent pixels. Visible layers require Normal blending, full layer/cel opacity and zero cel z-index; unsupported modes still report an error.
• Use the shared Tessera.WpfStyles theme and bundled fonts throughout the desktop interface.
• Restore checkerboard, dark and light preview backgrounds behind transparent images.

Users of v1.0.11 or later can install this release through the app's update button. The image library stays in place.

Updating from v1.0.10 or earlier: download this release manually once to enable future in-app updates.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.13...v1.0.14

Tessera v1.0.13

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

What's new:

• Refresh the desktop interface with bundled Cascadia Code and Science Gothic fonts, shared control styles and updated headings.
• Use redesigned icon, background-removal and Aseprite workspaces with settings beside the preview on wide windows and scrollable settings above it on narrow windows.
• Enter image dimensions above 4K in the desktop editor and CLI. Available memory and image codec support determine the practical maximum.

Users of v1.0.11 or later can install this release through the app's update button. The image library stays in place.

Updating from v1.0.10 or earlier: download this release manually once to enable future in-app updates.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.12...v1.0.13

Tessera v1.0.12

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

What's new:

• Open Filters from the editor toolbar or the compact Processing menu, and apply them to the source or selected result.
• Convert images to monochrome while preserving dimensions and transparency. The result is saved in the image history.
• Create ASCII art as UTF-8 text or a black-and-white image. Choose Standard, Detailed, Minimal or Blocks character sets, or enter your own.
• Keep the input image size or map each pixel to one character for a larger render. Invert input brightness and rendered foreground/background independently.

Users of v1.0.11 can install this release through the app's update button. Rendered ASCII images have an opaque background; the original image remains intact.

Updating from v1.0.10 or earlier: download this release manually once to enable future in-app updates.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.11...v1.0.12

Tessera v1.0.11

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

What's new:

• Check for newer GitHub releases automatically at startup, or manually from the bottom bar and File menu.
• Confirm an update to download the desktop executable, verify its SHA-256 checksum, replace the installed file and restart. The image library stays in place.
• Continue working offline when update checks are unavailable. Automatic installation requires the published Tessera.exe in a writable folder; development builds open the release page instead.

Updating from v1.0.10 or earlier: download this release manually once to enable future in-app updates.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.10...v1.0.11

Tessera v1.0.10

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

What's new:

• Open Presets, Size, Palette, Smoothing, Grid and Info from the editor toolbar, or from Processing on narrow windows.
• Smooth local color noise with a separate 3x3 operation and 1-100 passes. It selects neighboring colors while preserving dimensions and alpha; its controls are independent of resizing and palette reduction.
• Inspect image dimensions and visible color counts in Info. Click a palette color to replace it using a hue strip, color field, existing image swatch or HEX value. Replacement creates a saved result and keeps the original and transparency intact.
• Reduce colors either by color count or by palette. Inactive settings do not affect the selected operation.
• Keep editor settings when opening and closing tools, preserve the chosen input's aspect ratio, and apply grid operations to the selected source or result.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.9...v1.0.10

Tessera v1.0.9

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

The editor now opens Grid, Size, Color and Mode controls in separate tool windows. Enlarge pixel art without blur, preserve its transparency, and export all results for the current image from the File menu.

The CLI includes resize, colors, aseprite, align, reduce-grid, ico and remove-background commands for scripted workflows. Use reduce-grid (also available as compact-grid) to turn uniform aligned cells into individual pixels.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. The library is now stored at %LOCALAPPDATA%\Tessera\Library. On first launch, the old Pixelizator library is copied into it and retained as a backup. The application interface currently uses Russian labels.

Full Changelog: v1.0.6...v1.0.9

Tessera v1.0.6

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Change size and colors independently or together, align grids, reduce cells to single pixels and keep result histories. Create multi-size ICO files, or remove a solid background in its own workspace and save a full-size transparent PNG. Choose any library source or saved result from the From editor thumbnail panel. Background removal works globally or from connected image edges, with adjustable tolerance.

Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. All processing runs locally.

The CLI includes resize, colors, aseprite, align, ico and remove-background commands for scripted workflows.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. Existing libraries remain at %LOCALAPPDATA%\Pixelizator\Library. The application interface currently uses Russian labels.

Full Changelog: v1.0.4...v1.0.6

Tessera v1.0.4

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Align grids, reduce cells to single pixels, downscale images, choose palettes, keep result histories and export multi-size ICO files with transparency. Convert supported Aseprite animations in batches to PNG sprite sheets with JSON frame timings. Optional solid-color background removal works globally or from connected image edges, with adjustable tolerance; the CLI also provides remove-background and remove-bg commands.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. Existing libraries remain at %LOCALAPPDATA%\Pixelizator\Library. The application interface currently uses Russian labels.

Full Changelog: v1.0.3...v1.0.4

Tessera v1.0.3

Tessera is a standalone Windows app for preparing pixel art and icons.
It began as a way to correct uneven grids and inconsistent pixel sizes in AI-generated pixel art.

Align grids, reduce cells to single pixels, downscale images, choose palettes, keep result histories and export multi-size ICO files with transparency. Optional solid-color background removal runs locally with adjustable tolerance.

Download Tessera.exe or Tessera-win-x64.zip for the desktop app, or Tessera-cli-win-x64.zip for the CLI. No .NET installation is required. SHA256SUMS.txt contains the download checksums.

Previously named Pixelizator. Existing libraries remain at %LOCALAPPDATA%\Pixelizator\Library. The application interface currently uses Russian labels.

Full Changelog: v1.0.2...v1.0.3