EngineeringJune 29, 2025•7 min read
All-in-One Online JSON Tool: Repair, Convert to YAML/CSV/TOML & Decode JWT
D
Developer Tools Team
Core Platform • JSONViewer Engineering
Engineering workflows often involve jumping between five different tabs: one to validate JSON syntax, one to decode a JWT bearer token, another to convert JSON to CSV for product teams, and another to format YAML for Kubernetes. JSONViewer consolidates these essential utilities into a unified workstation.
01.Autonomous JSON Syntax Auto-Repair
Malformed JSON is one of the most frequent friction points when copying logs from datadog, terminal outputs, or API documentation. Missing closing braces, trailing commas, single-quoted keys, and unescaped newlines routinely break standard JSON.parse().
Our built-in error-tolerant parser detects and automatically repairs unescaped quotes, unquoted keys, and missing structural brackets in real time while displaying a clean diff of what was corrected.
02.Cross-Format Transformations
Seamlessly convert your data structures between JSON, YAML, TOML, XML, and CSV with strict schema preservation. All conversions run locally inside WebAssembly modules without sending your sensitive customer or auth data over the network.
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