Converting YAML and JSON in the Browser Without Uploading Files

The article describes a browser-based YAML tool in OnePassApps' Data Studio that converts between YAML and JSON in both directions without sending the file to a server. The author notes that the page is run by a company they work for, and explains the three-step interface of source input, conversion options, and results. In a test, a four-field JSON object became seven lines of YAML, and the reverse conversion produced nine lines of JSON, with the output reporting format, line count and size. The piece argues that keeping conversions local helps when files contain secrets, makes diffs easier to inspect, and reveals failed parses through line and byte counts. It also notes limits: JSON input is capped at 2 MiB, the tool checks syntax but not schema, and scheduled pipelines are better served by command-line tools.