Upgrade legacy `version: '2'` docker-compose YAML files to modern Compose specification.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Output_AST = Parse(Input, Schema_RFC) → Transform(Rules) → Serialize(Encoding)InputSchema_RFCOutput_AST“Processing a sample payload with the Docker Compose Version 2 to Version 3 / Compose Spec Migrator.”
The engine validates syntax adherence against the formal grammar specification.
Builds a clean output representation according to selected formatting conventions.
The processed payload is validated, formatted, and verified for syntactic correctness.
| Payload Size | Processing Time | Memory Overhead | Execution Mode |
|---|---|---|---|
| < 10 KB | < 1 ms | Negligible (< 1 MB) | Synchronous main thread |
| 10 KB – 1 MB | 1 – 15 ms | ~2 MB | Fast in-memory processing |
| 1 MB – 10 MB | 15 – 120 ms | ~20 MB | Client-side streaming |
| > 10 MB | < 500 ms | Dynamically GC managed | Optimized Web Worker chunking |
Paste your code or data into the Docker Compose Version 2 to Version 3 / Compose Spec Migrator input editor.
Adjust formatting style, indentation, or validation settings as needed.
Click Copy to grab the formatted result, or export it directly as a file.
No. Docker Compose Version 2 to Version 3 / Compose Spec Migrator processes all data locally inside your browser using JavaScript. No network requests are initiated, making it safe for proprietary code and sensitive keys.
Yes. Once loaded, the tool is cached via Progressive Web App (PWA) service workers and can be operated without an active internet connection.
Utilifie is 100% free with zero data tracking. Support continuous development and tool elevations.
Zero-egress companion tools in the Developer Tools suite
Translate complex command-line docker run scripts into clean docker-compose.yml files.
Convert .env key-value variables into Docker Compose environment: dictionary blocks.
Generate commands to branch from stashes, view diffs, or apply specific stash indices.
Format, validate, repair, and minify JSON data instantly.