QuickTool: Fast Online Tools
Fast Online Tools for Productivity
QuickTool is a fast and simple online toolbox for developers and creators. It provides a growing collection of lightweight tools that work instantly in the browser.
Tool directory
Base64 Decoder
Decode Base64 strings
Base64 Encoder
Encode text to Base64
Binary to Text
Convert 8‑bit binary to text
Case Converter
Convert text case (upper, lower, snake, etc.)
Character Counter
Count characters including/excluding spaces
CSS Formatter
Pretty‑print CSS with basic indentation
CSV to JSON
Convert CSV rows to JSON
Duplicate Line Remover
Remove duplicate lines from text
HTML Decoder
Decode HTML entities to text
HTML Encoder
Escape HTML special characters to entities
HTML Formatter
Pretty‑print HTML (basic)
JS Formatter
Pretty‑print JavaScript (basic)
JSON Diff
Compare two JSON documents
JSON Formatter
Format JSON with consistent indentation
JSON Minifier
Minify JSON by removing whitespace
JSON Schema Validator
Validate JSON against a simple JSON Schema
JSON to CSV
Convert JSON arrays to CSV
JSON to XML
Convert simple JSON to XML
JSON Validator
Validate JSON and show parse errors
JSON Viewer
Pretty‑print and explore JSON
JWT Decoder
Decode JWT header and payload
Line Break Remover
Remove line breaks from text
Markdown Preview
Preview Markdown with a lightweight renderer
Random String
Generate random strings with custom charset
Why QuickTool Helps You Ship Faster
Consistent UI, fast workflows, and privacy by default.
QuickTool unifies essential JSON utilities, practical text helpers, and targeted developer tools in one place.
- Format, minify, diff, and validate JSON for quick debugging.
- Encode/decode and convert text, Base64, and Unicode safely.
- Clear error states and examples for faster troubleshooting.
Popular Starting Points
Jump into commonly used tools.
- JSON Viewer — inspect and navigate large JSON documents.
- Base64 Decoder — decode strings in your browser.
- Regex Tester — iterate quickly with live matches.