{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-05-20T20:47:38.284Z","discovery":{"catalog":"https://toolsly.tools/tools.json","llmsTxt":"https://toolsly.tools/llms.txt","sitemap":"https://toolsly.tools/sitemap.xml"},"relatedTools":[{"slug":"qr-code-reader","name":"QR Code Reader","url":"https://toolsly.tools/qr-code-reader"},{"slug":"qr-code-generator","name":"QR Code Generator","url":"https://toolsly.tools/qr-code-generator"},{"slug":"file-to-hex","name":"File to Hex Dump","url":"https://toolsly.tools/file-to-hex"},{"slug":"hex-to-file","name":"Hex to Binary File","url":"https://toolsly.tools/hex-to-file"},{"slug":"wifi-qr-code-generator","name":"Wi-Fi QR Code Generator","url":"https://toolsly.tools/wifi-qr-code-generator"},{"slug":"vcard-qr-code-generator","name":"vCard QR Code Generator","url":"https://toolsly.tools/vcard-qr-code-generator"},{"slug":"barcode-generator","name":"Barcode Generator","url":"https://toolsly.tools/barcode-generator"},{"slug":"base64-encode","name":"Base64 Encode","url":"https://toolsly.tools/base64-encode"}],"kind":"utility","slug":"json-unflatten","name":"JSON Unflatten","description":"Expand a flat dot/bracket-keyed object back into nested JSON — numeric keys become array indices.","longDescription":"The inverse of JSON Flatten. Paste a flat JSON object whose keys use dot-notation (`a.b.0`) or array brackets (`a.b[0]`) and rebuild the nested structure. Numeric segments are treated as array indices, everything else as object keys. Useful for parsing form-data style payloads, CSV → nested JSON, or undoing a flatten operation. Runs entirely in your browser — free, online, no upload.","category":"text","categoryName":"Text & Encoding","keywords":["json unflatten","unflatten json","flat json to nested","json from dot notation","expand flat json","nest json","json deepen","json unflatten online","json unflatten free","form data to json","json hierarchy builder","json restructure"],"badge":"Transformer","url":"https://toolsly.tools/json-unflatten","inputs":[{"type":"text","key":"json","label":"Flat JSON","placeholder":"{\"a.b.0\": \"x\", \"a.b.1\": \"y\"}","multiline":true,"monospace":true}],"outputs":[{"key":"nested","label":"Nested","multiline":true}],"invocation":{"webUi":"https://toolsly.tools/json-unflatten","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}