Extract 32x32 animated VMU icons, 72x56 eyecatch graphics, and raw save files from Sega Dreamcast .vms, .dci, and .vmu memory card files directly in your browser.
Detailed side-by-side format architecture for VMS Graphic Raster (.vms) and Portable Network Graphics (.png). Every conversion executes strictly within isolated browser memory without network transit.
Drag and drop your .vms file onto the working surface or use the system file dialog. File magic bytes are verified locally on device.
Select a quality preset (Lossless, Visually Lossless, Balanced, Smallest) or adjust advanced encoding switches in the options panel.
Click CONVERT to execute local WebAssembly compilation. Save the finished .png directly to local storage, or stage it for chaining.
Prefer local shell scripting? Run this standard POSIX command on your machine to achieve equivalent transcoding without a web interface:
# Convert VMS to PNG locally
magick input.vms output.pngWorking with files across multiple web pages? The official convrtr Chrome Extension adds native Side Panel docking, right-click context menu media extraction, and visible viewport capture. Powered by the same zero-upload client-side WebAssembly engine.
Detailed technical comparison between PNG and JPG (JPEG). Understand lossless vs lossy compression, alpha channel transparency, and file size optimization.
Compare WebP and PNG file sizes, transparency handling, browser support, and compression performance for web graphics and illustrations.
Compare Commodore 64 KoalaPainter (.koa) graphics with 32-bit RGBA PNG. Learn about VIC-II multi-color constraints, color clash, 16-color palettes, and lossless web images.
The Sega Dreamcast Visual Memory Unit (VMU) stores game progress in .vms files. Each file contains a 128-byte metadata header, custom 16-color ARGB4444 icon palettes, 32x32 animated icon frames, an optional 72x56 eyecatch image, and the game save payload.
Yes. In ZIP mode, convrtr extracts every individual 32x32 animated icon frame, the 72x56 eyecatch graphic, the raw binary save payload, and a full JSON/Markdown manifest.
Yes. Both standalone .vms saves, Nexus .dci container files, and raw 128KB VMU dumps can be processed directly in your browser without uploading to any remote server.
VMS Graphic Raster (VMS) and Portable Network Graphics (PNG) serve distinct roles across the digital workflow. Converting to PNG provides optimized compatibility, modern compression efficiency, or standardized playback across web browsers, operating systems, and media production environments.
The output format (PNG) is inherently lossless or supports lossless operation. Your original visual or audio fidelity is mathematically preserved without quantization artifacts.
Never. convrtr is architected with a strict zero-upload model. All processing, decoding, decompression, and encoding happen 100% locally on your machine using sandboxed WebAssembly and Web Workers. Your data never touches an external server, database, or analytics collector.
You can execute this conversion locally via command-line utilities such as ffmpeg, cwebp, or ImageMagick. For example: see the developer terminal recipe provided in the technical specifications dossier above. convrtr provides the identical local-first capability directly inside your browser without installing CLI packages.
Yes. You can drop multiple .vms files into the instrument to process them concurrently in browser Web Workers, or click 'Open in Master Studio' to queue mixed formats, configure individual targets, and export as a single ZIP archive.
Convert web media, local files, and document assets directly in Chrome Side Panel using client-side WebAssembly, zero-server uploads, and the official convrtr browser extension.
A byte-level walkthrough of the MLW container format: the Root marker, the filename block, the AES-GCM payload, and the one part of the layout nobody has documented.
MLW uses a single fixed encryption key shared across every install of the app. What that means for whether unwrapping it counts as DRM circumvention — in plain English, not legal advice.