UD5 Toolkit
JSON to JSON Schema Generator - Online Infer Structure
Paste a sample JSON object and generate a basic JSON Schema describing its types and required fields. Local inference.
CLI Table Generator - Online JSON to Console Log Style
CLI Table Generator
Convert JSON arrays into beautiful terminal-style ASCII/Unicode tables
Unicode Single
Unicode Double
ASCII
Markdown
Minimal
table-output
❯ Waiting for valid JSON input...
Frequently Asked Questions
What is a CLI Table Generator?
A CLI Table Generator converts structured JSON data into text-based tables that mimic the appearance of command-line interface (CLI) output. These tables use characters like ┌┬┐ (Unicode) or +-| (ASCII) to draw borders, making them perfect for terminal logs, documentation, README files, and debugging output.
What JSON formats are supported?
The tool accepts any valid JSON array of objects. Each object's keys become column headers, and values populate the rows. It also handles arrays of primitives (strings, numbers), nested objects (auto-stringified), and irregular objects with varying keys. Single objects are automatically wrapped into a one-row table.
How does column width calculation work?
Column widths are dynamically calculated by scanning all rows to find the longest value per column, including the header text. A minimum width of 4 characters is enforced. You can set a maximum column width (20–50 chars or unlimited); values exceeding this are truncated with an ellipsis (…). The "Compact mode" reduces internal padding.
Which table styles are available?
Five styles are offered: Unicode Single (┌┬┐├┼┤└┴┘), Unicode Double (╔╦╗╠╬╣╚╩╝), ASCII (+-|), Markdown (pipe-separated for .md files), and Minimal (spacing-based alignment with subtle separators). Unicode styles look great in modern terminals; ASCII ensures maximum compatibility.
Can I copy the table to my clipboard?
Yes! Click the Copy button in the terminal preview header to copy the generated table as plain text. The copied text preserves all formatting and can be pasted directly into code editors, terminal emulators, documentation, chat messages, or any plain-text environment.
Is this tool free to use?
Absolutely. The CLI Table Generator is completely free with no registration, no ads, and no usage limits. All processing happens locally in your browser — your JSON data never leaves your device. Bookmark this page for quick access whenever you need to format JSON as a table.
SQL CREATE TABLE to CSV Header - Online Column Lister
Paste a SQL CREATE TABLE statement and extract just the column names as a CSV header row. For data migration.
JavaScript Object Diff Viewer - Online Compare Data
Paste two JSON objects and see a highlighted diff showing what was added, removed, or changed. For API testing.
FormData to JSON Converter - Online Debug Multipart
Fill in a form and see the FormData object as JSON. Perfect for debugging multipart form submissions. Client-side.
JSON to Excel (.xlsx) Converter - Online Spreadsheet Creator
Paste a JSON array of objects and download a properly formatted .xlsx Excel file. No server; uses SheetJS in the browser.
Web USB Console - Online Claim & Talk to USB Device
Request a USB device and communicate with it using the Web USB API. See vendor and product IDs. Experimental.
ICS to JSON Converter - Online Calendar Data Export
Parse an iCalendar file and output the events as a clean JSON array. For developers integrating calendar data. Client‑side only.
JSON List to CSV - Online Flat Array Converter
Convert a JSON array of strings or numbers into a single‑column CSV. Quick data dump. Local.
JSON to Graph Visualization - Online Tree Diagram
Paste a JSON object and see a dynamic, draggable tree graph representation. Excellent for debugging nested data.
JSON to TypeScript Interface - Online Type Gen
Paste a JSON object and instantly get a TypeScript interface definition. Handles nested objects and arrays. Local only.
Static Currency Converter - Online Fixed Rates Table
Convert currencies using a built‑in table of approximate fixed rates. Useful for quick estimates without live data. Local.
JSON to Form Data Converter - Online Encode for POST
Convert a JSON object into a url‑encoded form data string or FormData entries. Useful for testing APIs. Local.
JSON to .env Converter - Online Environment File Generator
Transform a flat JSON object into a dotenv file format instantly. Use it to keep your local configuration in sync. All processing is private and client‑side.
Text to Character Array - Online For Programmers
Split a text into an array of individual characters, ready to paste into code. Options for quotes and newlines.
Console Log Viewer - Online Simulate & Format Output
Paste a list of JavaScript values and see them pretty‑printed as if in the browser console. Great for debugging.
CSV to HTML Table - Online Generate Responsive Code
Paste CSV and get a beautiful HTML table with sortable headers (optional). Copy the full HTML/CSS snippet. Local.
Data Table to Markdown - Online Paste & Format
Paste tab‑separated or CSV data and instantly get a beautifully aligned Markdown table. Essential for documentation.
CSV to Wiki Table Converter - Online MediaWiki Markup
Paste CSV data and instantly get a formatted MediaWiki table code. Ideal for Wikipedia editors and internal wikis.
JSON to Go Struct / TypeScript / JSON Schema - Online
Paste a JSON object and quickly generate typed structs for Go, TypeScript interfaces, or a JSON Schema. Perfect for API integration.
HTML Table to Markdown Converter - Online Quick Transform
Paste an HTML `<table>` snippet and instantly get a clean Markdown table. Supports colspan and alignment hints. Local.
ASCII Table Printer - Online Generate Custom Table
Enter rows of data and create a nicely formatted ASCII table using box‑drawing characters. Great for CLI apps.
JSON to SQL INSERT/UPDATE Converter - Online
Parse a JSON array and generate SQL INSERT or UPDATE statements. Perfect for data migration. Client‑side only.
JSON Diff Compare - Online Highlight Differences
Paste two JSON objects and find the structural differences with side‑by‑side highlighted output. Indispensable for API debugging.
Console Log Extractor - Online Capture & Download Console
A tiny tool that hooks into the console and lets you export all messages to a file. Helpful for non‑technical bug reporting.
Random JSON Generator - Online Create Sample API Responses
Generate random JSON data with customizable fields (users, products, orders). Useful for frontend mocking. All local.
Markdown Table Generator - Online Visual Builder & Formatter
Create and format Markdown tables by adjusting rows and columns. Align text, copy the raw Markdown. Perfect for README files.
Lottie Animation Previewer - Online JSON Player
Paste Lottie JSON code or upload a .json file and see the animation play. Control speed and loop. Perfect for developers.
JSON to XML Converter - Online Data Interchange Tool
Seamlessly convert JSON objects into valid XML documents. Control root element naming and attribute formatting. Entirely local, keeping your data safe.
ASCII Table - Online Character Code Reference
Interactive ASCII table showing decimal, hex, octal, and binary codes for all standard and extended ASCII characters. A classic programmer reference.
JSON Formatter & Validator - Online JSON Beautifier
Online JSON formatting and validation tool, supporting JSON minify/beautify, syntax highlighting, and error locating. Data processed locally in browser for security.