JSON to Table Viewer

Convert JSON arrays and objects into HTML tables. Export as CSV or HTML. Fast, offline, zero permissions.

JSON to Table Viewer — Visualize Any JSON as a Clean, Scrollable Table JSON to Table Viewer is a lightweight Chrome extension that instantly converts JSON arrays and objects into readable HTML tables — right inside your browser popup, with no external services, no data upload, and no registration required. Paste your JSON, click Convert, and your data appears as a neatly formatted table in under a second. This JSON to table converter is the fastest way to make sense of an API response or a data export without leaving your current tab or workflow. HOW IT WORKS Copy any JSON response from your API client, terminal, or code editor and paste it into the JSON to Table Viewer popup. Click Convert to Table or press Ctrl+Enter and the JSON to Table Viewer parses the structure, detects every unique key across all records, and renders a proper table with sticky column headers. The whole JSON to table conversion happens locally in your browser. Rows alternate background colors for comfortable reading, and long cell values reveal their full content on mouse hover via a native tooltip. When you are done inspecting, click Copy as CSV to paste the data directly into Excel or Google Sheets, or click Copy HTML to embed the table in a wiki page, email message, or documentation system. WHO IS IT FOR The JSON to Table Viewer is built for backend developers inspecting API responses who are tired of reading raw JSON blobs. Data engineers validating ETL pipeline outputs who need a quick sanity check without opening a separate application. QA testers comparing response structures across API endpoints during regression runs. Product managers pasting a data export from a developer who want to understand the shape and content of a dataset in seconds. Students learning JSON who want to see visually how a complex response maps to rows and columns. Anyone who has ever stared at a wall of JSON text and thought: this would make so much more sense as a table — JSON to Table Viewer is the answer. KEY FEATURES Works with arrays and single objects — paste a JSON array of records or a single JSON object and the JSON to Table Viewer handles both cases automatically without any configuration. Automatic key detection — the JSON to Table Viewer gathers all unique keys across all rows into a unified column list, even when individual rows have different fields or sparse data. No manual schema definition needed. Sticky table headers — the column header row remains visible as you scroll down through long datasets, so you never lose track of which column you are currently reading. Copy as CSV — exports a properly escaped CSV file with correct handling of embedded commas, double-quote characters, and newlines. The result pastes cleanly into Excel or Google Sheets without manual cleanup. Copy HTML — exports the complete table as clean, semantic HTML markup that you can paste into Confluence, Notion, an email client, or any documentation platform. XSS-safe rendering — every cell value is HTML-escaped before being written to the DOM, so malicious strings embedded in your JSON data cannot execute code inside the extension popup. Clear error messages — invalid JSON produces a readable, specific error message that describes exactly what went wrong, rather than a silent failure or a cryptic developer stack trace. Keyboard shortcut — Ctrl+Enter on Windows and Linux, Cmd+Enter on Mac, triggers the JSON to table conversion without requiring the mouse. Zero permissions — the JSON to Table Viewer requests no access to your browsing data, open tabs, cookies, clipboard history, or any websites you visit. Fully offline — all JSON to table conversion and rendering happens locally using pure JavaScript. Your data is never transmitted to any external server under any circumstances. PRIVACY FIRST JSON to Table Viewer requests zero browser permissions. It cannot read the web pages you visit, cannot inject scripts into any website, cannot access your browsing history, and never communicates with any remote server. Every operation runs inside a fully sandboxed extension popup. Your data is never logged, never persisted between sessions, and never shared with any third party. GETTING STARTED Pin the JSON to Table Viewer icon to your Chrome toolbar. Copy a JSON response, click the icon, paste the JSON, and press Convert to Table. Use Copy as CSV or Copy HTML to move the data where you need it. Install JSON to Table Viewer now and stop squinting at raw JSON forever.