// Local-first Sprite Preparation
SpriteCut
v0.1.0 M3ATurn videos and image sequences into aligned PNG animation frames and sprite sheets — locally, deterministically, and safely at production scale.
Local-first Windows x64 Three verified packages SHA-256 checksums published FFmpeg + FFprobe required
- Aligned PNG frames
- Sprite-sheet export
- Bounded-memory processing
- Schema-v4 metadata
- Safe cancellation & rollback
- Alpha-correct processing
// The Pipeline
From raw motion to production-ready sprites
Sprite preparation gets difficult when the source is long, the subject moves, transparency matters, and every downstream build expects identical output. SpriteCut turns a video or image sequence into consistently aligned PNG frames, packed sprite sheets, and machine-readable schema-v4 metadata without sending source media to a cloud service.
The 0.1.0 M3A release is built for production-scale jobs. Export keeps memory bounded, stabilized bounds remain deterministic, output replacement is transactional, and cancellation or failure restores the previous output exactly. Its verified compatibility contract keeps canonical frame PNGs, sprite sheets, and JSON byte-identical to the established baseline.
DETERMINISTIC EXPORT
Local processing · bounded memory · transactional install · exact rollback
// Key Features
Safety without changing the pixels
M3A hardens the export pipeline while preserving SpriteCut's established output contract.
Production-scale without runaway memory
A bounded decode and processing pipeline handles large sources without retaining the entire frame set in memory.
Stable, aligned animation frames
Alpha-correct processing and stabilized bounds keep the subject aligned while preserving deterministic output.
Frames, sheets, and metadata together
Export PNG sequences, sprite sheets, and canonical schema-v4 JSON for direct use in animation and game pipelines.
Baseline-identical output
Golden PNG frames, sprite sheets, and canonical metadata remain byte-identical to the verified baseline.
Transactional replacement
New output is installed as one transaction, with exact rollback of existing files after cancellation or failure.
Hardened media-tool lifecycle
FFmpeg and FFprobe output is drained safely, diagnostics stay bounded, stalls are terminated, and child processes are reaped.
// How It Works
Source in, aligned assets out
- 01
Import
Open a video or image sequence stored on your Windows PC.
- 02
Prepare
Configure alpha-aware processing and stabilized bounds for consistent frame alignment.
- 03
Preview
Review the prepared animation and export settings before writing output.
- 04
Export safely
Write PNG frames, sprite sheets, and schema-v4 metadata transactionally, with cancellation and rollback protection.
// Changelog
What's new in v0.1.0 M3A
v0.1.0 M3A
released 2026-07-31
- + Added bounded-memory production-scale export
- + Added transactional output replacement with exact rollback after failure or cancellation
- + Kept baseline-identical PNG, sprite-sheet, and schema-v4 JSON output
- + Hardened FFmpeg and FFprobe lifecycle handling, diagnostics, watchdogs, and process reaping
- + Added hostile-dimension and allocation checks for PNG, JPEG, and WebP decoding
Every release lands on the Release Feed.
// Download
Get SpriteCut 0.1.0 M3A
For Windows x64. FFmpeg and FFprobe are external prerequisites and are not bundled with SpriteCut.
NSIS Installer
2.7 MBRecommended interactive Windows installer.
Download NSIS InstallerNSIS installer SHA-256 b74533978628edf79e4c00a1fcc432c783224267ff17953d2b537ead7df60ab6
Portable EXE
11.8 MBNo installation required; keep the executable wherever you want to run it.
Download Portable EXEPortable EXE SHA-256 20041d2413c746bf8950559f9449aaf42f8cbb874890f588b3a415ac9563b5c1
MSI Installer
4.0 MBWindows Installer package for MSI-based deployment workflows.
Download MSI InstallerMSI installer SHA-256 2d819e78bfcf9da3a15e5ef7fb4c25367c644cc92e7b779cb8676be8824a36d0
FFmpeg and FFprobe must be installed separately and available to SpriteCut; they are not included in any package above. Verify the published SHA-256 checksum before running a download.
// Keep Exploring
Continue exploring the workshop
More desktop tools built in the same workshop — take a look.
