Data Serialization: JSON, YAML, XML & CSV
Interchange formats for APIs, configuration files, and tabular data.
Files are processed locally in your browser with WebAssembly and HTML5 APIs. They never leave your device, so there are no server uploads or third-party file storage.
Start converting immediately on your own device - no upload wait, no download queue, and no throttling by a remote server.
Use every available tool without creating an account, paying for a plan, or hitting an artificial file-size limit. Convert as often as your browser and device can handle.
Format Comparison & Technical Specifications
| Output Format | MIME Type | Specification | Type |
|---|---|---|---|
| JSON Data | application/json | RFC-4180-CSV | JavaScript Object Notation |
| HTML Source | text/html | W3C-SVG | HTML Source Document |
Technical Specifications & Codec Breakdown
JSON vs. YAML: APIs vs. Human Configurations
JSON is strict and unambiguous, making it the universal standard for browser APIs and web applications. YAML is designed for human readability without curly braces, which is why DevOps tools like Docker and Kubernetes use YAML for config files.
The Whitespace Trap in YAML
YAML relies on precise indentation: mixing tabs and spaces or misaligning by two spaces can cause parse errors or misconfigured servers. Converting YAML to JSON verifies syntax and highlights schema discrepancies instantly.
0 bytes uploaded to external servers. All processing occurred locally in your browser sandbox.